who am i, wire? converted all non-spell actions to the new iotas

Common/src/main/java/at/petrak/hexcasting/README.md

@@ -4,6 +4,6 @@ The "flavor text" words for things in this mod and the internal names are differ
 
 - A "Hex" is a `Cast`, cast through a [`CastingHarness`](api/spell/casting/CastingHarness.kt)
 - A "Pattern" is a [`HexPattern`](api/spell/math/HexPattern.kt)
-- An "Action" is an [`Operator`](api/spell/Operator.kt)
+- An "Action" is an [`Operator`](api/spell/Action.kt)
-- An action that pushes a spell is a [`Spell`](api/spell/SpellOperator.kt)
+- An action that pushes a spell is a [`Spell`](api/spell/SpellAction.kt)
 

Common/src/main/java/at/petrak/hexcasting/api/PatternRegistry.kt

@@ -1,6 +1,6 @@
 package at.petrak.hexcasting.api
 
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.math.EulerPathFinder
 import at.petrak.hexcasting.api.spell.math.HexDir
 import at.petrak.hexcasting.api.spell.math.HexPattern
@@ -25,7 +25,7 @@ import java.util.concurrent.ConcurrentMap
  * operator (the diamond) are `"qaq"` and `"ede"`.
  */
 object PatternRegistry {
-    private val operatorLookup = ConcurrentHashMap<ResourceLocation, Operator>()
+    private val actionLookup = ConcurrentHashMap<ResourceLocation, Action>()
     private val specialHandlers: ConcurrentLinkedDeque<SpecialHandlerEntry> = ConcurrentLinkedDeque()
 
     // Map signatures to the "preferred" direction they start in and their operator ID.
@@ -41,12 +41,12 @@ object PatternRegistry {
     @JvmStatic
     @JvmOverloads
     @Throws(RegisterPatternException::class)
-    fun mapPattern(pattern: HexPattern, id: ResourceLocation, operator: Operator, isPerWorld: Boolean = false) {
+    fun mapPattern(pattern: HexPattern, id: ResourceLocation, action: Action, isPerWorld: Boolean = false) {
-        this.operatorLookup[id]?.let {
+        this.actionLookup[id]?.let {
             throw RegisterPatternException("The operator with id `$id` was already registered to: $it")
         }
 
-        this.operatorLookup[id] = operator
+        this.actionLookup[id] = action
         if (isPerWorld) {
             this.perWorldPatternLookup[id] = PerWorldEntry(pattern, id)
         } else {
@@ -73,14 +73,14 @@ object PatternRegistry {
      * Internal use only.
      */
     @JvmStatic
-    fun matchPattern(pat: HexPattern, overworld: ServerLevel): Operator =
+    fun matchPattern(pat: HexPattern, overworld: ServerLevel): Action =
         matchPatternAndID(pat, overworld).first
 
     /**
      * Internal use only.
      */
     @JvmStatic
-    fun matchPatternAndID(pat: HexPattern, overworld: ServerLevel): Pair<Operator, ResourceLocation> {
+    fun matchPatternAndID(pat: HexPattern, overworld: ServerLevel): Pair<Action, ResourceLocation> {
         // Pipeline:
         // patterns are registered here every time the game boots
         // when we try to look
@@ -92,7 +92,7 @@ object PatternRegistry {
         // Is it global?
         val sig = pat.anglesSignature()
         this.regularPatternLookup[sig]?.let {
-            val op = this.operatorLookup[it.opId] ?: throw MishapInvalidPattern()
+            val op = this.actionLookup[it.opId] ?: throw MishapInvalidPattern()
             return op to it.opId
         }
 
@@ -101,7 +101,7 @@ object PatternRegistry {
         val perWorldPatterns: Save =
             ds.computeIfAbsent(Save.Companion::load, { Save.create(overworld.seed) }, TAG_SAVED_DATA)
         perWorldPatterns.lookup[sig]?.let {
-            val op = this.operatorLookup[it.first]!!
+            val op = this.actionLookup[it.first]!!
             return op to it.first
         }
 
@@ -125,12 +125,12 @@ object PatternRegistry {
     @JvmStatic
     fun lookupPattern(opId: ResourceLocation): PatternEntry {
         this.perWorldPatternLookup[opId]?.let {
-            return PatternEntry(it.prototype, this.operatorLookup[it.opId]!!, true)
+            return PatternEntry(it.prototype, this.actionLookup[it.opId]!!, true)
         }
         for ((sig, entry) in this.regularPatternLookup) {
             if (entry.opId == opId) {
                 val pattern = HexPattern.fromAngles(sig, entry.preferredStart)
-                return PatternEntry(pattern, this.operatorLookup[entry.opId]!!, false)
+                return PatternEntry(pattern, this.actionLookup[entry.opId]!!, false)
             }
         }
 
@@ -153,7 +153,7 @@ object PatternRegistry {
      * In the base mod, this is used for number patterns.
      */
     fun interface SpecialHandler {
-        fun handlePattern(pattern: HexPattern): Operator?
+        fun handlePattern(pattern: HexPattern): Action?
     }
 
     data class SpecialHandlerEntry(val id: ResourceLocation, val handler: SpecialHandler)
@@ -164,7 +164,7 @@ object PatternRegistry {
     private data class PerWorldEntry(val prototype: HexPattern, val opId: ResourceLocation)
 
     // Fake class we pretend to use internally
-    data class PatternEntry(val prototype: HexPattern, val operator: Operator, val isPerWorld: Boolean)
+    data class PatternEntry(val prototype: HexPattern, val action: Action, val isPerWorld: Boolean)
 
     /**
      * Maps angle sigs to resource locations and their preferred start dir so we can look them up in the main registry

Common/src/main/java/at/petrak/hexcasting/api/spell/Action.kt

@@ -8,11 +8,11 @@ import net.minecraft.world.phys.Vec3
 /**
  * Manipulates the stack in some way, usually by popping some number of values off the stack
  * and pushing one new value.
- * For a more "traditional" pop arguments, push return experience, see [ConstManaOperator].
+ * For a more "traditional" pop arguments, push return experience, see [ConstManaAction].
  *
  * Implementors MUST NOT mutate the context.
  */
-interface Operator {
+interface Action {
     /**
      * Operate on the stack. Return the new stack and any side effects of the cast.
      *
@@ -39,12 +39,12 @@ interface Operator {
      *
      * The pattern itself may modify its effects based on whether the user is enlightened or not, regardless of what this value is.
      */
-    val alwaysProcessGreatSpell: Boolean get() = this is SpellOperator
+    val alwaysProcessGreatSpell: Boolean get() = this is SpellAction
 
     /**
      * Can this Great Pattern give you Blind Diversion?
      */
-    val causesBlindDiversion: Boolean get() = this is SpellOperator
+    val causesBlindDiversion: Boolean get() = this is SpellAction
 
     companion object {
         // I see why vzakii did this: you can't raycast out to infinity!
@@ -56,7 +56,7 @@ interface Operator {
             origin.add(look.normalize().scale(MAX_DISTANCE))
 
         @JvmStatic
-        fun makeConstantOp(x: Iota): Operator = object : ConstManaOperator {
+        fun makeConstantOp(x: Iota): Action = object : ConstManaAction {
             override val argc: Int
                 get() = 0
 

Common/src/main/java/at/petrak/hexcasting/api/spell/ConstManaAction.kt

@@ -9,7 +9,7 @@ import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
 /**
  * A SimpleOperator that always costs the same amount of mana.
  */
-interface ConstManaOperator : Operator {
+interface ConstManaAction : Action {
     val argc: Int
     val manaCost: Int
         get() = 0
@@ -25,7 +25,7 @@ interface ConstManaOperator : Operator {
         if (this.argc > stack.size)
             throw MishapNotEnoughArgs(this.argc, stack.size)
         val args = stack.takeLast(this.argc)
-        for (_i in 0 until this.argc) stack.removeLast()
+        repeat(this.argc) { stack.removeLast() }
         val newData = this.execute(args, ctx)
         stack.addAll(newData)
 

Common/src/main/java/at/petrak/hexcasting/api/spell/OperatorUtils.kt

@@ -6,7 +6,6 @@ import at.petrak.hexcasting.api.spell.iota.*
 import at.petrak.hexcasting.api.spell.math.HexPattern
 import at.petrak.hexcasting.api.spell.mishaps.MishapInvalidIota
 import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
-import at.petrak.hexcasting.api.utils.asTranslatedComponent
 import com.mojang.datafixers.util.Either
 import com.mojang.math.Vector3f
 import net.minecraft.core.BlockPos
@@ -16,37 +15,17 @@ import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.item.ItemEntity
 import net.minecraft.world.entity.npc.Villager
 import net.minecraft.world.phys.Vec3
+import java.util.function.DoubleUnaryOperator
 import kotlin.math.abs
 import kotlin.math.roundToInt
 import kotlin.math.roundToLong
 
-fun numOrVec(datum: Iota, reverseIdx: Int): Either<Double, Vec3> =
-    when (datum) {
-        is DoubleIota -> Either.left(datum.double)
-        is Vec3Iota -> Either.right(datum.vec3)
-        else -> throw MishapInvalidIota(
-            datum,
-            reverseIdx,
-            "hexcasting.mishap.invalid_value.numvec".asTranslatedComponent
-        )
-    }
-
-fun numOrList(datum: Iota, reverseIdx: Int): Either<Double, SpellList> =
-    when (datum) {
-        is DoubleIota -> Either.left(datum.double)
-        is ListIota -> Either.right(datum.list)
-        else -> throw MishapInvalidIota(
-            datum,
-            reverseIdx,
-            "hexcasting.mishap.invalid_value.numlist".asTranslatedComponent
-        )
-    }
-
 fun List<Iota>.getDouble(idx: Int, argc: Int = 0): Double {
     val x = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
     if (x is DoubleIota) {
         return x.double
     } else {
+        // TODO: I'm not sure this calculation is correct
         throw MishapInvalidIota.ofType(x, if (argc == 0) idx else argc - (idx + 1), "double")
     }
 }
@@ -129,7 +108,7 @@ fun List<Iota>.getLivingEntity(idx: Int, argc: Int = 0): LivingEntity {
     throw MishapInvalidIota.ofType(x, if (argc == 0) idx else argc - (idx + 1), "entity.living")
 }
 
-fun List<Iota>.getPositiveDoubleB(idx: Int, argc: Int = 0): Double {
+fun List<Iota>.getPositiveDouble(idx: Int, argc: Int = 0): Double {
     val x = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
     if (x is DoubleIota) {
         val double = x.double
@@ -172,7 +151,7 @@ fun List<Iota>.getLong(idx: Int, argc: Int = 0): Long {
             return rounded
         }
     }
-    throw MishapInvalidIota.ofType(x, if (argc == 0) idx else argc - (idx + 1), "int") // shh we're lying
+    throw MishapInvalidIota.of(x, if (argc == 0) idx else argc - (idx + 1), "int") // shh we're lying
 }
 
 fun List<Iota>.getPositiveInt(idx: Int, argc: Int = 0): Int {
@@ -180,11 +159,23 @@ fun List<Iota>.getPositiveInt(idx: Int, argc: Int = 0): Int {
     if (x is DoubleIota) {
         val double = x.double
         val rounded = double.roundToInt()
-        if (abs(double - rounded) <= DoubleIota.TOLERANCE && rounded > 0) {
+        if (abs(double - rounded) <= DoubleIota.TOLERANCE && rounded >= 0) {
             return rounded
         }
     }
-    throw MishapInvalidIota.ofType(x, if (argc == 0) idx else argc - (idx + 1), "int.positive")
+    throw MishapInvalidIota.of(x, if (argc == 0) idx else argc - (idx + 1), "int.positive")
+}
+
+fun List<Iota>.getPositiveIntUnder(idx: Int, max: Int, argc: Int = 0): Int {
+    val x = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
+    if (x is DoubleIota) {
+        val double = x.double
+        val rounded = double.roundToInt()
+        if (abs(double - rounded) <= DoubleIota.TOLERANCE && rounded in 0 until max) {
+            return rounded
+        }
+    }
+    throw MishapInvalidIota.of(x, if (argc == 0) idx else argc - (idx + 1), "int.positive.lessthan", max)
 }
 
 fun List<Iota>.getIntBetween(idx: Int, min: Int, max: Int, argc: Int = 0): Int {
@@ -199,44 +190,65 @@ fun List<Iota>.getIntBetween(idx: Int, min: Int, max: Int, argc: Int = 0): Int {
     throw MishapInvalidIota.of(x, if (argc == 0) idx else argc - (idx + 1), "double.between", min, max)
 }
 
-inline val Boolean.asSpellResult get() = listOf(DoubleIota(if (this) 1.0 else 0.0))
+fun List<Iota>.getBlockPos(idx: Int, argc: Int = 0): BlockPos {
-inline val Double.asSpellResult get() = listOf(DoubleIota(this))
+    val x = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
-inline val Number.asSpellResult get() = listOf(DoubleIota(this.toDouble()))
+    if (x is Vec3Iota) {
-
+        return BlockPos(x.vec3)
-inline val SpellList.asSpellResult get() = listOf(ListIota(this))
-inline val List<Iota>.asSpellResult get() = listOf(ListIota(this))
-
-inline val BlockPos.asSpellResult get() = listOf(Vec3Iota(Vec3.atCenterOf(this)))
-inline val Vector3f.asSpellResult get() = listOf(Vec3Iota(Vec3(this)))
-inline val Vec3.asSpellResult get() = listOf(Vec3Iota(this))
-
-inline val Entity?.asSpellResult get() = listOf(if (this == null) NullIota.INSTANCE else EntityIota(this))
-inline val HexPattern.asSpellResult get() = listOf(PatternIota(this))
-
-private const val TOLERANCE = 0.0001
-
-fun Any.tolerantEquals(other: Any) = tolerantEquals(other, 64)
-
-private fun Any.tolerantEquals(other: Any, recursionsLeft: Int): Boolean {
-    return when {
-        this is Iota && other is Iota -> this.payload.tolerantEquals(other.payload, recursionsLeft)
-        this is Iota -> this.payload.tolerantEquals(other, recursionsLeft)
-        other is Iota -> this.tolerantEquals(other.payload, recursionsLeft)
-
-        this is HexPattern && other is HexPattern -> this.angles == other.angles
-        this is Double && other is Double -> abs(this - other) < TOLERANCE
-        this is Vec3 && other is Vec3 -> this.subtract(other).lengthSqr() < TOLERANCE * TOLERANCE
-        this is SpellList && other is SpellList -> {
-            val castA = this.toList()
-            val castB = other.toList()
-            if (castA.size != castB.size || recursionsLeft == 0)
-                return false
-            for (i in castA.indices)
-                if (!castA[i].payload.tolerantEquals(castB[i].payload, recursionsLeft - 1))
-                    return false
-            true
     }
-        this is Entity && other is Entity -> this.uuid == other.uuid
+
-        else -> this == other
+    throw MishapInvalidIota.ofType(x, if (argc == 0) idx else argc - (idx + 1), "vector")
+}
+
+fun List<Iota>.getNumOrVec(idx: Int, argc: Int = 0): Either<Double, Vec3> {
+    val datum = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
+    return when (datum) {
+        is DoubleIota -> Either.left(datum.double)
+        is Vec3Iota -> Either.right(datum.vec3)
+        else -> throw MishapInvalidIota.of(
+            datum,
+            if (argc == 0) idx else argc - (idx + 1),
+            "numvec"
+        )
     }
 }
+
+fun List<Iota>.getLongOrList(idx: Int, argc: Int = 0): Either<Long, SpellList> {
+    val datum = this.getOrElse(idx) { throw MishapNotEnoughArgs(idx + 1, this.size) }
+    if (datum is DoubleIota) {
+        val double = datum.double
+        val rounded = double.roundToLong()
+        if (abs(double - rounded) <= DoubleIota.TOLERANCE) {
+            return Either.left(rounded)
+        }
+    } else if (datum is ListIota) {
+        return Either.right(datum.list)
+    }
+    throw MishapInvalidIota.of(
+        datum,
+        if (argc == 0) idx else argc - (idx + 1),
+        "numlist"
+    )
+}
+
+// TODO do we make this work on lists
+// there should probably be some way to abstract function application over lists, vecs, and numbers,
+// and i bet it's fucking monads
+fun aplKinnie(operatee: Either<Double, Vec3>, fn: DoubleUnaryOperator): Iota =
+    operatee.map(
+        { num -> DoubleIota(fn.applyAsDouble(num)) },
+        { vec -> Vec3Iota(Vec3(fn.applyAsDouble(vec.x), fn.applyAsDouble(vec.y), fn.applyAsDouble(vec.z))) }
+    )
+
+inline val Boolean.asActionResult get() = listOf(DoubleIota(if (this) 1.0 else 0.0))
+inline val Double.asActionResult get() = listOf(DoubleIota(this))
+inline val Number.asActionResult get() = listOf(DoubleIota(this.toDouble()))
+
+inline val SpellList.asActionResult get() = listOf(ListIota(this))
+inline val List<Iota>.asActionResult get() = listOf(ListIota(this))
+
+inline val BlockPos.asActionResult get() = listOf(Vec3Iota(Vec3.atCenterOf(this)))
+inline val Vector3f.asActionResult get() = listOf(Vec3Iota(Vec3(this)))
+inline val Vec3.asActionResult get() = listOf(Vec3Iota(this))
+
+inline val Entity?.asActionResult get() = listOf(if (this == null) NullIota.INSTANCE else EntityIota(this))
+inline val HexPattern.asActionResult get() = listOf(PatternIota(this))

Common/src/main/java/at/petrak/hexcasting/api/spell/SpellAction.kt

@@ -5,7 +5,7 @@ import at.petrak.hexcasting.api.spell.casting.OperatorSideEffect
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
 import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
 
-interface SpellOperator : Operator {
+interface SpellAction : Action {
     val argc: Int
 
     fun hasCastingSound(ctx: CastingContext): Boolean = true

Common/src/main/java/at/petrak/hexcasting/api/spell/SpellList.kt

@@ -69,6 +69,19 @@ sealed class SpellList : Iterable<Iota> {
 
     override fun iterator() = SpellListIterator(this)
 
+    /**
+     * Note this is O(n), probably.
+     */
+    fun size(): Int {
+        var size = 0
+        var ptr = this
+        while (ptr.nonEmpty) {
+            ptr = ptr.cdr
+            size++
+        }
+        return size
+    }
+
     class SpellListIterator(var list: SpellList) : Iterator<Iota> {
         override fun hasNext() = list.nonEmpty
         override operator fun next(): Iota {

Common/src/main/java/at/petrak/hexcasting/api/spell/casting/CastingContext.kt

@@ -2,7 +2,7 @@ package at.petrak.hexcasting.api.spell.casting
 
 import at.petrak.hexcasting.api.HexAPI.modLoc
 import at.petrak.hexcasting.api.mod.HexConfig
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.mishaps.MishapEntityTooFarAway
 import at.petrak.hexcasting.api.spell.mishaps.MishapEvalTooDeep
 import at.petrak.hexcasting.api.spell.mishaps.MishapLocationTooFarAway
@@ -76,6 +76,10 @@ data class CastingContext(
         assertVecInWorld(vec)
     }
 
+    fun assertVecInRange(pos: BlockPos) {
+        assertVecInRange(Vec3.atCenterOf(pos))
+    }
+
     /**
      * Check to make sure an entity is in range. Will not mishap for players.
      */
@@ -94,7 +98,7 @@ data class CastingContext(
         if (sentinel.hasSentinel
             && sentinel.extendsRange
             && world.dimension() == sentinel.dimension
-            && vec.distanceToSqr(sentinel.position) < Operator.MAX_DISTANCE_FROM_SENTINEL * Operator.MAX_DISTANCE_FROM_SENTINEL
+            && vec.distanceToSqr(sentinel.position) < Action.MAX_DISTANCE_FROM_SENTINEL * Action.MAX_DISTANCE_FROM_SENTINEL
         )
             return true
 
@@ -107,7 +111,7 @@ data class CastingContext(
             return this.spellCircle.aabb.contains(vec)
         }
 
-        if (vec.distanceToSqr(this.caster.position()) < Operator.MAX_DISTANCE * Operator.MAX_DISTANCE)
+        if (vec.distanceToSqr(this.caster.position()) < Action.MAX_DISTANCE * Action.MAX_DISTANCE)
             return true
 
         return false

Common/src/main/java/at/petrak/hexcasting/api/spell/casting/CastingHarness.kt

@@ -8,7 +8,7 @@ import at.petrak.hexcasting.api.misc.HexDamageSources
 import at.petrak.hexcasting.api.mod.HexConfig
 import at.petrak.hexcasting.api.mod.HexItemTags
 import at.petrak.hexcasting.api.mod.HexStatistics
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.SpellList
 import at.petrak.hexcasting.api.spell.Widget
@@ -141,19 +141,19 @@ class CastingHarness private constructor(
      * handle it functionally.
      */
     fun updateWithPattern(newPat: HexPattern, world: ServerLevel, continuation: SpellContinuation): CastResult {
-        var operatorIdPair: Pair<Operator, ResourceLocation>? = null
+        var actionIdPair: Pair<Action, ResourceLocation>? = null
         try {
             // Don't catch this one
-            operatorIdPair = PatternRegistry.matchPatternAndID(newPat, world)
+            actionIdPair = PatternRegistry.matchPatternAndID(newPat, world)
-            if (this.ctx.spellCircle == null && !HexConfig.server().isActionAllowed(operatorIdPair.second)) {
+            if (this.ctx.spellCircle == null && !HexConfig.server().isActionAllowed(actionIdPair.second)) {
                 throw MishapDisallowedSpell()
             } else if (this.ctx.spellCircle != null
-                && !HexConfig.server().isActionAllowedInCircles(operatorIdPair.second)
+                && !HexConfig.server().isActionAllowedInCircles(actionIdPair.second)
             ) {
                 throw MishapDisallowedSpell("disallowed_circle")
             }
 
-            val pattern = operatorIdPair.first
+            val pattern = actionIdPair.first
 
             val unenlightened = pattern.isGreat && !ctx.isCasterEnlightened
 
@@ -208,7 +208,7 @@ class CastingHarness private constructor(
                 continuation,
                 null,
                 mishap.resolutionType(ctx),
-                listOf(OperatorSideEffect.DoMishap(mishap, Mishap.Context(newPat, operatorIdPair?.second))),
+                listOf(OperatorSideEffect.DoMishap(mishap, Mishap.Context(newPat, actionIdPair?.second))),
             )
         } catch (exception: Exception) {
             exception.printStackTrace()
@@ -219,7 +219,7 @@ class CastingHarness private constructor(
                 listOf(
                     OperatorSideEffect.DoMishap(
                         MishapError(exception),
-                        Mishap.Context(newPat, operatorIdPair?.second)
+                        Mishap.Context(newPat, actionIdPair?.second)
                     )
                 )
             )

Common/src/main/java/at/petrak/hexcasting/api/spell/iota/DoubleIota.java

@@ -20,11 +20,20 @@ public class DoubleIota extends Iota {
         return HexUtils.fixNAN((Double) this.payload);
     }
 
+    @Override
+    public boolean isTruthy() {
+        return this.getDouble() != 0.0;
+    }
+
     @Override
     public boolean toleratesOther(Iota that) {
         return typesMatch(this, that)
             && that instanceof DoubleIota dd
-            && Math.abs(this.getDouble() - dd.getDouble()) < TOLERANCE;
+            && tolerates(this.getDouble(), dd.getDouble());
+    }
+
+    public static boolean tolerates(double a, double b) {
+        return Math.abs(a - b) < TOLERANCE;
     }
 
     @Override

Common/src/main/java/at/petrak/hexcasting/api/spell/iota/GarbageIota.java

@@ -22,6 +22,11 @@ public class GarbageIota extends Iota {
         super(HexIotaTypes.GARBAGE, NULL_SUBSTITUTE);
     }
 
+    @Override
+    public boolean isTruthy() {
+        return false;
+    }
+
     @Override
     public boolean toleratesOther(Iota that) {
         return typesMatch(this, that);

Common/src/main/java/at/petrak/hexcasting/api/spell/iota/Iota.java

@@ -16,14 +16,20 @@ public abstract class Iota {
         this.payload = payload;
     }
 
-    public @NotNull Object getPayload() {
+    public @NotNull
+    Object getPayload() {
         return payload;
     }
 
-    public @NotNull IotaType<?> getType() {
+    public @NotNull
+    IotaType<?> getType() {
         return this.type;
     }
 
+    public boolean isTruthy() {
+        return true;
+    }
+
     /**
      * Compare this to another object, within a tolerance.
      * <p>
@@ -36,7 +42,8 @@ public abstract class Iota {
      * <p>
      * You probably don't want to call this directly; use {@link HexIotaTypes#serialize}.
      */
-    abstract public @NotNull Tag serialize();
+    abstract public @NotNull
+    Tag serialize();
 
     public Component display() {
         return this.type.display(this.serialize());

Common/src/main/java/at/petrak/hexcasting/api/spell/iota/ListIota.java

@@ -30,6 +30,11 @@ public class ListIota extends Iota {
         return (SpellList) this.payload;
     }
 
+    @Override
+    public boolean isTruthy() {
+        return this.getList().getNonEmpty();
+    }
+
     @Override
     public boolean toleratesOther(Iota that) {
         if (!typesMatch(this, that)) {

Common/src/main/java/at/petrak/hexcasting/api/spell/iota/NullIota.java

@@ -22,6 +22,11 @@ public class NullIota extends Iota {
         super(HexIotaTypes.NULL, NULL_SUBSTITUTE);
     }
 
+    @Override
+    public boolean isTruthy() {
+        return false;
+    }
+
     @Override
     public boolean toleratesOther(Iota that) {
         return typesMatch(this, that);

Common/src/main/java/at/petrak/hexcasting/common/casting/RegisterPatterns.java

@@ -2,8 +2,7 @@ package at.petrak.hexcasting.common.casting;
 
 import at.petrak.hexcasting.api.PatternRegistry;
 import at.petrak.hexcasting.api.misc.ManaConstants;
-import at.petrak.hexcasting.api.spell.Operator;
+import at.petrak.hexcasting.api.spell.Action;
-import at.petrak.hexcasting.api.spell.iota.Iota;
 import at.petrak.hexcasting.api.spell.Widget;
 import at.petrak.hexcasting.api.spell.math.HexAngle;
 import at.petrak.hexcasting.api.spell.math.HexDir;
@@ -352,29 +351,29 @@ public class RegisterPatterns {
             PatternRegistry.mapPattern(HexPattern.fromAngles("d", HexDir.EAST), modLoc("const/null"), Widget.NULL);
 
             PatternRegistry.mapPattern(HexPattern.fromAngles("qqqqqea", HexDir.NORTH_WEST), modLoc("const/vec/px"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(1.0, 0.0, 0.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(1.0, 0.0, 0.0))));
             PatternRegistry.mapPattern(HexPattern.fromAngles("qqqqqew", HexDir.NORTH_WEST), modLoc("const/vec/py"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 1.0, 0.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 1.0, 0.0))));
             PatternRegistry.mapPattern(HexPattern.fromAngles("qqqqqed", HexDir.NORTH_WEST), modLoc("const/vec/pz"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, 1.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, 1.0))));
             PatternRegistry.mapPattern(HexPattern.fromAngles("eeeeeqa", HexDir.SOUTH_WEST), modLoc("const/vec/nx"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(-1.0, 0.0, 0.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(-1.0, 0.0, 0.0))));
             PatternRegistry.mapPattern(HexPattern.fromAngles("eeeeeqw", HexDir.SOUTH_WEST), modLoc("const/vec/ny"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, -1.0, 0.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, -1.0, 0.0))));
             PatternRegistry.mapPattern(HexPattern.fromAngles("eeeeeqd", HexDir.SOUTH_WEST), modLoc("const/vec/nz"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, -1.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, -1.0))));
             // Yep, this is what I spend the "plain hexagon" pattern on.
             PatternRegistry.mapPattern(HexPattern.fromAngles("qqqqq", HexDir.NORTH_WEST), modLoc("const/vec/0"),
-                Operator.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, 0.0))));
+                Action.makeConstantOp(LegacySpellDatum.make(new Vec3(0.0, 0.0, 0.0))));
 
             PatternRegistry.mapPattern(HexPattern.fromAngles("qdwdq", HexDir.NORTH_EAST), modLoc("const/double/pi"),
-                Operator.makeConstantOp(LegacySpellDatum.make(Math.PI)));
+                Action.makeConstantOp(LegacySpellDatum.make(Math.PI)));
             PatternRegistry.mapPattern(HexPattern.fromAngles("eawae", HexDir.NORTH_WEST), modLoc("const/double/tau"),
-                Operator.makeConstantOp(LegacySpellDatum.make(HexUtils.TAU)));
+                Action.makeConstantOp(LegacySpellDatum.make(HexUtils.TAU)));
 
             // e
             PatternRegistry.mapPattern(HexPattern.fromAngles("aaq", HexDir.EAST), modLoc("const/double/e"),
-                Operator.makeConstantOp(LegacySpellDatum.make(Math.E)));
+                Action.makeConstantOp(LegacySpellDatum.make(Math.E)));
 
             // == Entities ==
 
@@ -490,7 +489,7 @@ public class RegisterPatterns {
                 if (negate) {
                     accumulator = -accumulator;
                 }
-                return Operator.makeConstantOp(LegacySpellDatum.make(accumulator));
+                return Action.makeConstantOp(LegacySpellDatum.make(accumulator));
             } else {
                 return null;
             }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpBlockAxisRaycast.kt

@@ -1,23 +1,27 @@
 package at.petrak.hexcasting.common.casting.operators
 
 import at.petrak.hexcasting.api.misc.ManaConstants
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getVec3
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 import net.minecraft.world.level.ClipContext
 import net.minecraft.world.phys.HitResult
-import net.minecraft.world.phys.Vec3
 
-object OpBlockAxisRaycast : ConstManaOperator {
+object OpBlockAxisRaycast : ConstManaAction {
     override val argc = 2
     override val manaCost = ManaConstants.DUST_UNIT / 100
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val origin: Vec3 = args.getChecked(0, argc)
+        val origin = args.getVec3(0, argc)
-        val look: Vec3 = args.getChecked(1, argc)
+        val look = args.getVec3(1, argc)
 
         val blockHitResult = ctx.world.clip(
             ClipContext(
                 origin,
-                Operator.raycastEnd(origin, look),
+                Action.raycastEnd(origin, look),
                 ClipContext.Block.COLLIDER,
                 ClipContext.Fluid.NONE,
                 ctx.caster
@@ -25,9 +29,9 @@ object OpBlockAxisRaycast : ConstManaOperator {
         )
 
         return if (blockHitResult.type == HitResult.Type.BLOCK) {
-            blockHitResult.direction.step().asSpellResult
+            blockHitResult.direction.step().asActionResult
         } else {
-            null.asSpellResult
+            listOf(NullIota.INSTANCE)
         }
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpBlockRaycast.kt

@@ -1,23 +1,27 @@
 package at.petrak.hexcasting.common.casting.operators
 
 import at.petrak.hexcasting.api.misc.ManaConstants
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getVec3
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 import net.minecraft.world.level.ClipContext
 import net.minecraft.world.phys.HitResult
-import net.minecraft.world.phys.Vec3
 
-object OpBlockRaycast : ConstManaOperator {
+object OpBlockRaycast : ConstManaAction {
     override val argc = 2
     override val manaCost = ManaConstants.DUST_UNIT / 100
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val origin: Vec3 = args.getChecked(0, argc)
+        val origin = args.getVec3(0, argc)
-        val look: Vec3 = args.getChecked(1, argc)
+        val look = args.getVec3(1, argc)
 
         val blockHitResult = ctx.world.clip(
             ClipContext(
                 origin,
-                Operator.raycastEnd(origin, look),
+                Action.raycastEnd(origin, look),
                 ClipContext.Block.COLLIDER,
                 ClipContext.Fluid.NONE,
                 ctx.caster
@@ -28,9 +32,10 @@ object OpBlockRaycast : ConstManaOperator {
             // the position on the bhr is the position of the specific *hit point*, which is actually on the outside of the block
             // this is weird (for example, casting OpBreakBlock at this position will not break the block we're looking at)
             // so we return the block pos instead
-            blockHitResult.blockPos.asSpellResult
+            // TODO some action that has the "weird" version?
+            blockHitResult.blockPos.asActionResult
         } else {
-            Widget.NULL.asSpellResult
+            listOf(NullIota.INSTANCE)
         }
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpEntityHeight.kt

@@ -1,18 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getEntity
-import net.minecraft.world.entity.Entity
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpEntityHeight : ConstManaOperator {
+object OpEntityHeight : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val e: Entity = args.getChecked(0, argc)
+        val e = args.getEntity(0, argc)
         ctx.assertEntityInRange(e)
-        return e.bbHeight.asSpellResult
+        return e.bbHeight.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpEntityLook.kt

@@ -1,18 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getEntity
-import net.minecraft.world.entity.Entity
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpEntityLook : ConstManaOperator {
+object OpEntityLook : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val e: Entity = args.getChecked(0, argc)
+        val e = args.getEntity(0, argc)
         ctx.assertEntityInRange(e)
-        return e.lookAngle.asSpellResult
+        return e.lookAngle.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpEntityPos.kt

@@ -1,21 +1,20 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getEntity
-import net.minecraft.world.entity.Entity
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.world.entity.player.Player
 
-object OpEntityPos : ConstManaOperator {
+object OpEntityPos : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val e: Entity = args.getChecked(0, argc)
+        val e = args.getEntity(0, argc)
         ctx.assertEntityInRange(e)
         // If this is a player, "expected behavior" is to get the *eye* position so raycasts don't immediately
         // hit the ground.
-        return if (e is Player) e.eyePosition.asSpellResult else e.position().asSpellResult
+        return (if (e is Player) e.eyePosition else e.position()).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpEntityRaycast.kt

@@ -1,19 +1,23 @@
 package at.petrak.hexcasting.common.casting.operators
 
 import at.petrak.hexcasting.api.misc.ManaConstants
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getVec3
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 import net.minecraft.world.entity.projectile.ProjectileUtil
 import net.minecraft.world.phys.AABB
-import net.minecraft.world.phys.Vec3
 
-object OpEntityRaycast : ConstManaOperator {
+object OpEntityRaycast : ConstManaAction {
     override val argc = 2
     override val manaCost = ManaConstants.DUST_UNIT / 100
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val origin: Vec3 = args.getChecked(0, argc)
+        val origin = args.getVec3(0, argc)
-        val look: Vec3 = args.getChecked(1, argc)
+        val look = args.getVec3(1, argc)
-        val endp = Operator.raycastEnd(origin, look)
+        val endp = Action.raycastEnd(origin, look)
 
         val entityHitResult = ProjectileUtil.getEntityHitResult(
             ctx.caster,
@@ -25,9 +29,9 @@ object OpEntityRaycast : ConstManaOperator {
         )
 
         return if (entityHitResult != null && ctx.isEntityInRange(entityHitResult.entity)) {
-            entityHitResult.entity.asSpellResult
+            entityHitResult.entity.asActionResult
         } else {
-            null.asSpellResult
+            listOf(NullIota.INSTANCE)
         }
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpEntityVelocity.kt

@@ -1,26 +1,25 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getEntity
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.common.misc.PlayerPositionRecorder
 import net.minecraft.server.level.ServerPlayer
-import net.minecraft.world.entity.Entity
 
-object OpEntityVelocity : ConstManaOperator {
+object OpEntityVelocity : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val e: Entity = args.getChecked(0, argc)
+        val e = args.getEntity(0, argc)
         ctx.assertEntityInRange(e)
 
         // Player velocity is jank. Really jank. This is the best we can do.
         if (e is ServerPlayer) {
-            return PlayerPositionRecorder.getMotion(e).asSpellResult
+            return PlayerPositionRecorder.getMotion(e).asActionResult
         }
 
-        return e.deltaMovement.asSpellResult
+        return e.deltaMovement.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpRead.kt

@@ -1,12 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadOffhandItem
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
-object OpRead : ConstManaOperator {
+object OpRead : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpReadable.kt

@@ -1,12 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
-object OpReadable : ConstManaOperator {
+object OpReadable : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
@@ -15,12 +15,12 @@ object OpReadable : ConstManaOperator {
         }
 
         val datumHolder = IXplatAbstractions.INSTANCE.findDataHolder(handStack)
-            ?: return false.asSpellResult
+            ?: return false.asActionResult
 
         datumHolder.readIota(ctx.world)
             ?: datumHolder.emptyIota()
-            ?: return false.asSpellResult
+            ?: return false.asActionResult
 
-        return true.asSpellResult
+        return true.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpTheCoolerRead.kt

@@ -1,21 +1,20 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getItemEntity
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadItem
 import at.petrak.hexcasting.xplat.IXplatAbstractions
-import net.minecraft.world.entity.item.ItemEntity
 
-object OpTheCoolerRead : ConstManaOperator {
+object OpTheCoolerRead : ConstManaAction {
     override val argc = 1
 
     override fun execute(
         args: List<Iota>,
         ctx: CastingContext
     ): List<Iota> {
-        val target = args.getChecked<ItemEntity>(0, argc)
+        val target = args.getItemEntity(0, argc)
 
         ctx.assertEntityInRange(target)
 

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpTheCoolerReadable.kt

@@ -1,30 +1,29 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getItemEntity
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.xplat.IXplatAbstractions
-import net.minecraft.world.entity.item.ItemEntity
 
-object OpTheCoolerReadable : ConstManaOperator {
+object OpTheCoolerReadable : ConstManaAction {
     override val argc = 1
 
     override fun execute(
         args: List<Iota>,
         ctx: CastingContext
     ): List<Iota> {
-        val target = args.getChecked<ItemEntity>(0, argc)
+        val target = args.getItemEntity(0, argc)
         ctx.assertEntityInRange(target)
 
         val stack = target.item
         val datumHolder = IXplatAbstractions.INSTANCE.findDataHolder(stack)
-            ?: return false.asSpellResult
+            ?: return false.asActionResult
 
         if (datumHolder.readIota(ctx.world) == null && datumHolder.emptyIota() == null)
-            return false.asSpellResult
+            return false.asActionResult
 
-        return true.asSpellResult
+        return true.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpWritable.kt

@@ -1,13 +1,13 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapOthersName
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
-object OpWritable : ConstManaOperator {
+object OpWritable : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
@@ -19,15 +19,15 @@ object OpWritable : ConstManaOperator {
             datumHolder != null && datumHolder.writeIota(datum, true)
         }
 
-        val datumHolder = IXplatAbstractions.INSTANCE.findDataHolder(handStack) ?: return false.asSpellResult
+        val datumHolder = IXplatAbstractions.INSTANCE.findDataHolder(handStack) ?: return false.asActionResult
 
         if (!datumHolder.writeIota(datum, true))
-            return false.asSpellResult
+            return false.asActionResult
 
         val trueName = MishapOthersName.getTrueNameFromDatum(datum, ctx.caster)
         if (trueName != null)
-            return false.asSpellResult
+            return false.asActionResult
 
-        return true.asSpellResult
+        return true.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/OpWrite.kt

@@ -1,16 +1,16 @@
 package at.petrak.hexcasting.common.casting.operators
 
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadOffhandItem
 import at.petrak.hexcasting.api.spell.mishaps.MishapOthersName
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
 // we make this a spell cause imo it's a little ... anticlimactic for it to just make no noise
-object OpWrite : SpellOperator {
+object OpWrite : SpellAction {
     override val argc = 1
     override fun execute(
         args: List<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/akashic/OpAkashicRead.kt

@@ -1,32 +1,29 @@
 package at.petrak.hexcasting.common.casting.operators.akashic
 
 import at.petrak.hexcasting.api.misc.ManaConstants
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.Widget
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getBlockPos
-import at.petrak.hexcasting.api.spell.math.HexPattern
+import at.petrak.hexcasting.api.spell.getPattern
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 import at.petrak.hexcasting.api.spell.mishaps.MishapNoAkashicRecord
 import at.petrak.hexcasting.common.blocks.akashic.BlockEntityAkashicRecord
-import net.minecraft.core.BlockPos
-import net.minecraft.world.phys.Vec3
 
-object OpAkashicRead : ConstManaOperator {
+object OpAkashicRead : ConstManaAction {
     override val argc = 2
     override val manaCost = ManaConstants.DUST_UNIT
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val pos = args.getChecked<Vec3>(0, argc)
+        val pos = args.getBlockPos(0, argc)
-        val key = args.getChecked<HexPattern>(1, argc)
+        val key = args.getPattern(1, argc)
 
-        val bpos = BlockPos(pos)
+        val tile = ctx.world.getBlockEntity(pos)
-        val tile = ctx.world.getBlockEntity(bpos)
         if (tile !is BlockEntityAkashicRecord) {
-            throw MishapNoAkashicRecord(bpos)
+            throw MishapNoAkashicRecord(pos)
         }
 
         val datum = tile.lookupPattern(key, ctx.world)
-        return listOf(datum ?: LegacySpellDatum.make(Widget.NULL))
+        return listOf(datum ?: NullIota.INSTANCE)
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/akashic/OpAkashicWrite.kt

@@ -3,16 +3,15 @@ package at.petrak.hexcasting.common.casting.operators.akashic
 import at.petrak.hexcasting.api.misc.ManaConstants
 import at.petrak.hexcasting.api.spell.*
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.math.HexPattern
 import at.petrak.hexcasting.api.spell.mishaps.MishapNoAkashicRecord
 import at.petrak.hexcasting.api.spell.mishaps.MishapOthersName
 import at.petrak.hexcasting.common.blocks.akashic.BlockEntityAkashicRecord
 import at.petrak.hexcasting.common.lib.HexSounds
-import net.minecraft.core.BlockPos
 import net.minecraft.sounds.SoundSource
-import net.minecraft.world.phys.Vec3
 
-object OpAkashicWrite : SpellOperator {
+object OpAkashicWrite : SpellAction {
     override val argc = 3
 
     override val isGreat = true
@@ -23,16 +22,15 @@ object OpAkashicWrite : SpellOperator {
         args: List<Iota>,
         ctx: CastingContext
     ): Triple<RenderedSpell, Int, List<ParticleSpray>> {
-        val pos = args.getChecked<Vec3>(0, argc)
+        val pos = args.getBlockPos(0, argc)
-        val key = args.getChecked<HexPattern>(1, argc)
+        val key = args.getPattern(1, argc)
-        val datum = args[2]
+        val datum = args.get(2)
 
         ctx.assertVecInRange(pos)
 
-        val bpos = BlockPos(pos)
+        val tile = ctx.world.getBlockEntity(pos)
-        val tile = ctx.world.getBlockEntity(bpos)
         if (tile !is BlockEntityAkashicRecord) {
-            throw MishapNoAkashicRecord(bpos)
+            throw MishapNoAkashicRecord(pos)
         }
 
         val trueName = MishapOthersName.getTrueNameFromDatum(datum, ctx.caster)

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/circles/OpCircleBounds.kt

@@ -1,13 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators.circles
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapNoSpellCircle
 import net.minecraft.world.phys.Vec3
 
-class OpCircleBounds(val max: Boolean) : ConstManaOperator {
+class OpCircleBounds(val max: Boolean) : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/circles/OpImpetusDir.kt

@@ -1,13 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators.circles
 
 import at.petrak.hexcasting.api.block.circle.BlockAbstractImpetus
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapNoSpellCircle
 
-object OpImpetusDir : ConstManaOperator {
+object OpImpetusDir : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/circles/OpImpetusPos.kt

@@ -1,19 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators.circles
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapNoSpellCircle
-import net.minecraft.world.phys.Vec3
 
-object OpImpetusPos : ConstManaOperator {
+object OpImpetusPos : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
         if (ctx.spellCircle == null)
             throw MishapNoSpellCircle()
 
-        return Vec3.atCenterOf(ctx.spellCircle.impetusPos).asSpellResult
+        return ctx.spellCircle.impetusPos.asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/eval/OpEval.kt

@@ -1,19 +1,28 @@
 package at.petrak.hexcasting.common.casting.operators.eval
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.OperationResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.ContinuationFrame
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpEval : Operator {
+object OpEval : Action {
-    override fun operate(continuation: SpellContinuation, stack: MutableList<Iota>, local: Iota, ctx: CastingContext): OperationResult {
+    override fun operate(
-        val instrs: SpellList = stack.getChecked(stack.lastIndex)
+        continuation: SpellContinuation,
+        stack: MutableList<Iota>,
+        local: Iota,
+        ctx: CastingContext
+    ): OperationResult {
+        val instrs = stack.getList(stack.lastIndex)
         stack.removeLastOrNull()
 
         ctx.incDepth()
 
         // if not installed already...
-        val newCont = if (continuation is SpellContinuation.NotDone && continuation.frame is ContinuationFrame.FinishEval) {
+        val newCont =
+            if (continuation is SpellContinuation.NotDone && continuation.frame is ContinuationFrame.FinishEval) {
                 continuation
             } else {
                 continuation.pushFrame(ContinuationFrame.FinishEval) // install a break-boundary after eval

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/eval/OpEvalDelay.kt

@@ -1,12 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators.eval
 
 import at.petrak.hexcasting.api.spell.OperationResult
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
 
-object OpEvalDelay : Operator {
+object OpEvalDelay : Action {
     override fun operate(continuation: SpellContinuation, stack: MutableList<Iota>, local: Iota, ctx: CastingContext): OperationResult {
         return OperationResult(continuation, stack, local, listOf())
     }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/eval/OpForEach.kt

@@ -1,12 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.eval
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.OperationResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.ContinuationFrame
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
 
-object OpForEach : Operator {
+object OpForEach : Action {
     override fun operate(
         continuation: SpellContinuation,
         stack: MutableList<Iota>,
@@ -16,8 +19,8 @@ object OpForEach : Operator {
         if (stack.size < 2)
             throw MishapNotEnoughArgs(2, stack.size)
 
-        val instrs: SpellList = stack.getChecked(stack.lastIndex - 1)
+        val instrs = stack.getList(stack.lastIndex - 1)
-        val datums: SpellList = stack.getChecked(stack.lastIndex)
+        val datums = stack.getList(stack.lastIndex)
         stack.removeLastOrNull()
         stack.removeLastOrNull()
 

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/eval/OpHalt.kt

@@ -2,11 +2,11 @@ package at.petrak.hexcasting.common.casting.operators.eval
 
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.OperationResult
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
 
-object OpHalt : Operator {
+object OpHalt : Action {
     override fun operate(
         continuation: SpellContinuation,
         stack: MutableList<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpAppend.kt

@@ -1,14 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getIota
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpAppend : ConstManaOperator {
+object OpAppend : ConstManaAction {
     override val argc = 2
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc).toMutableList()
+        val list = args.getList(0, argc).toMutableList()
-        val datum = args[1]
+        val datum = args.getIota(1)
         list.add(datum)
-        return list.asSpellResult
+        return list.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpConcat.kt

@@ -1,14 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpConcat : ConstManaOperator {
+object OpConcat : ConstManaAction {
     override val argc = 2
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = args.getChecked<SpellList>(0, argc).toMutableList()
+        val lhs = args.getList(0, argc).toMutableList()
-        val rhs = args.getChecked<SpellList>(1, argc)
+        val rhs = args.getList(1, argc)
         lhs.addAll(rhs)
-        return lhs.asSpellResult
+        return lhs.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpCons.kt

@@ -1,13 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.SpellList
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpCons : ConstManaOperator {
+object OpCons : ConstManaAction {
     override val argc = 2
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val bottom = args.getChecked<SpellList>(0, argc)
+        val bottom = args.getList(0, argc)
         val top = args[1]
-        return SpellList.LPair(top, bottom).asSpellResult
+        return SpellList.LPair(top, bottom).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpEmptyList.kt

@@ -1,13 +1,13 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 
-object OpEmptyList : ConstManaOperator {
+object OpEmptyList : ConstManaAction {
     override val argc = 0
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return emptyList<Iota>().asSpellResult // sorry for taking all the easy impls, hudeler
+        return emptyList<Iota>().asActionResult // sorry for taking all the easy impls, hudeler
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpIndex.kt

@@ -1,15 +1,19 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 import kotlin.math.roundToInt
 
-object OpIndex : ConstManaOperator {
+object OpIndex : ConstManaAction {
     override val argc = 2
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc).toMutableList()
+        val list = args.getList(0, argc).toMutableList()
-        val index = args.getChecked<Double>(1, argc)
+        val index = args.getDouble(1, argc)
-        val x = list.getOrElse(index.roundToInt()) { LegacySpellDatum.make(Widget.NULL) }
+        val x = list.getOrElse(index.roundToInt()) { NullIota.INSTANCE }
         return listOf(x)
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpIndexOf.kt

@@ -1,15 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpIndexOf : ConstManaOperator {
+object OpIndexOf : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc).toMutableList()
+        val list = args.getList(0, argc).toMutableList()
         val value = args[1]
-        return list.indexOfFirst(value::tolerantEquals).asSpellResult
+        return list.indexOfFirst { Iota.tolerates(value, it) }.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpLastNToList.kt

@@ -1,35 +1,32 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.Action
+import at.petrak.hexcasting.api.spell.OperationResult
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
-import at.petrak.hexcasting.api.spell.mishaps.MishapInvalidIota
+import at.petrak.hexcasting.api.spell.getPositiveIntUnder
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
-import at.petrak.hexcasting.api.utils.asTranslatedComponent
-import kotlin.math.abs
-import kotlin.math.roundToInt
 
-object OpLastNToList : Operator {
+object OpLastNToList : Action {
-    override fun operate(continuation: SpellContinuation, stack: MutableList<Iota>, local: Iota, ctx: CastingContext): OperationResult {
+    override fun operate(
+        continuation: SpellContinuation,
+        stack: MutableList<Iota>,
+        local: Iota,
+        ctx: CastingContext
+    ): OperationResult {
         if (stack.isEmpty())
             throw MishapNotEnoughArgs(1, 0)
-        val arg = stack.takeLast(1).getChecked<Double>(0)
+        val yoinkCount = stack.takeLast(1).getPositiveIntUnder(0, stack.size - 1)
-        val datum = stack[stack.lastIndex]
         stack.removeLast()
-        if (arg < 0 || arg > stack.size || abs(arg.roundToInt() - arg) >= 0.05f) {
-            throw MishapInvalidIota(
-                datum,
-                0,
-                "hexcasting.mishap.invalid_value.int.between".asTranslatedComponent(0, stack.size)
-            )
-        }
         val output = mutableListOf<Iota>()
-        output.addAll(stack.takeLast(arg.toInt()))
+        output.addAll(stack.takeLast(yoinkCount))
         val endSize = stack.size - output.toList().size
         while (stack.size != endSize) {
             stack.removeLast()
         }
-        stack.addAll(output.asSpellResult)
+        stack.addAll(output.asActionResult)
 
         return OperationResult(continuation, stack, local, listOf())
     }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpListSize.kt

@@ -1,12 +1,14 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
 // it's still called beancounter's distillation in my heart
-object OpListSize : ConstManaOperator {
+object OpListSize : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return args.getChecked<SpellList>(0, argc).toList().size.asSpellResult // mmm one-liner
+        return args.getList(0, argc).toList().size.asSpellResult // mmm one-liner
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpModifyInPlace.kt

@@ -2,14 +2,14 @@ package at.petrak.hexcasting.common.casting.operators.lists
 
 import at.petrak.hexcasting.api.spell.*
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import kotlin.math.roundToInt
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpModifyInPlace : ConstManaOperator {
+object OpModifyInPlace : ConstManaAction {
     override val argc = 3
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc)
+        val list = args.getList(0, argc)
-        val index = args.getChecked<Double>(1, argc).roundToInt()
+        val index = args.getPositiveIntUnder(1, list.size(), argc)
-        val iota = args[2]
+        val iota = args.getIota(2)
-        return list.modifyAt(index) { SpellList.LPair(iota, it.cdr) }.asSpellResult
+        return list.modifyAt(index) { SpellList.LPair(iota, it.cdr) }.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpRemove.kt

@@ -1,18 +1,20 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.getPositiveIntUnder
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpRemove : ConstManaOperator {
+object OpRemove : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc).toMutableList()
+        val list = args.getList(0, argc).toMutableList()
-        val index = args.getChecked<Double>(1, argc).toInt()
+        val index = args.getPositiveIntUnder(1, list.size, argc)
-        if (index < 0 || index >= list.size)
-            return list
         list.removeAt(index)
-        return list.asSpellResult
+        return list.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpReverski.kt

@@ -1,11 +1,14 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpReverski : ConstManaOperator {
+object OpReverski : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return args.getChecked<SpellList>(0, argc).toList().asReversed().asSpellResult // okay kotlin kinda pogged for this
+        return args.getList(0, argc).toList().asReversed().asActionResult // okay kotlin kinda pogged for this
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpSingleton.kt

@@ -1,13 +1,14 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getIota
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpSingleton : ConstManaOperator {
+object OpSingleton : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return listOf(args[0]).asSpellResult // god i love one-liners
+        return listOf(args.getIota(0)).asActionResult // god i love one-liners
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpSlice.kt

@@ -1,22 +1,24 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import net.minecraft.util.Mth
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.getPositiveIntUnder
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.max
 import kotlin.math.min
-import kotlin.math.roundToInt
 
-object OpSlice : ConstManaOperator {
+object OpSlice : ConstManaAction {
     override val argc = 3
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc).toList()
+        val list = args.getList(0, argc).toList()
-        val index1 = Mth.clamp(args.getChecked<Double>(1, argc).roundToInt(), 0, list.size)
+        val index1 = args.getPositiveIntUnder(1, list.size, argc)
-        val index2 = Mth.clamp(args.getChecked<Double>(2, argc).roundToInt(), 0, list.size)
+        val index2 = args.getPositiveIntUnder(2, list.size, argc)
 
         if (index1 == index2)
-            return emptyList<Iota>().asSpellResult
+            return emptyList<Iota>().asActionResult
 
-        return list.subList(min(index1, index2), max(index1, index2)).asSpellResult
+        return list.subList(min(index1, index2), max(index1, index2)).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpSplat.kt

@@ -1,15 +1,14 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.getChecked
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.SpellList
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpSplat : ConstManaOperator {
+object OpSplat : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> =
-        args.getChecked<SpellList>(0, argc).toMutableList()
+        args.getList(0, argc).toList()
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/lists/OpUnCons.kt

@@ -1,15 +1,19 @@
 package at.petrak.hexcasting.common.casting.operators.lists
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.ListIota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 
-object OpUnCons : ConstManaOperator {
+object OpUnCons : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val list = args.getChecked<SpellList>(0, argc)
+        val list = args.getList(0, argc)
         if (list.nonEmpty) {
-            return spellListOf(list.cdr, list.car)
+            return listOf(ListIota(list.cdr), list.car)
         }
-        return spellListOf(list, Widget.NULL)
+        return listOf(args[0], NullIota.INSTANCE)
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/local/OpPeekLocal.kt

@@ -1,12 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators.local
 
 import at.petrak.hexcasting.api.spell.OperationResult
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
 
-object OpPeekLocal : Operator {
+object OpPeekLocal : Action {
     override fun operate(
         continuation: SpellContinuation,
         stack: MutableList<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/local/OpPushLocal.kt

@@ -1,13 +1,13 @@
 package at.petrak.hexcasting.common.casting.operators.local
 
 import at.petrak.hexcasting.api.spell.OperationResult
-import at.petrak.hexcasting.api.spell.Operator
+import at.petrak.hexcasting.api.spell.Action
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapNotEnoughArgs
 import at.petrak.hexcasting.api.spell.casting.SpellContinuation
 
-object OpPushLocal : Operator {
+object OpPushLocal : Action {
     override fun operate(
         continuation: SpellContinuation,
         stack: MutableList<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpAbsLen.kt

@@ -1,19 +1,19 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.absoluteValue
 
-object OpAbsLen : ConstManaOperator {
+object OpAbsLen : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val x = numOrVec(args[0], 0)
+        val x = args.getNumOrVec(0, argc)
 
-        return x.map({ num -> num.absoluteValue }, { vec -> vec.length() }).asSpellResult
+        return x.map({ num -> num.absoluteValue }, { vec -> vec.length() }).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpAdd.kt

@@ -1,29 +1,30 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.spellListOf
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpAdd : ConstManaOperator {
+object OpAdd : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = numOrVec(args[0], 1)
+        val lhs = args.getNumOrVec(0, argc)
-        val rhs = numOrVec(args[1], 0)
+        val rhs = args.getNumOrVec(1, argc)
 
-        return spellListOf(
+        return lhs.map(
-            lhs.map({ lnum ->
+            { lnum ->
                 rhs.map(
-                    { rnum -> lnum + rnum }, { rvec -> rvec.add(lnum, lnum, lnum) }
+                    { rnum -> (lnum + rnum).asActionResult }, { rvec -> rvec.add(lnum, lnum, lnum).asActionResult }
                 )
-            }, { lvec ->
+            },
+            { lvec ->
                 rhs.map(
-                    { rnum -> lvec.add(rnum, rnum, rnum) }, { rvec -> lvec.add(rvec) }
+                    { rnum -> lvec.add(rnum, rnum, rnum).asActionResult }, { rvec -> lvec.add(rvec).asActionResult }
                 )
-            })
+            }
         )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpCeil.kt

@@ -1,18 +1,19 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.aplKinnie
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.ceil
 
-object OpCeil : ConstManaOperator {
+object OpCeil : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getNumOrVec(0, argc)
-        return ceil(value).asSpellResult
+        // i hate this fucking syntax what the hell is ::ceil are you a goddamn homestuck ::c
+        return listOf(aplKinnie(value, ::ceil))
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpCoerceToAxial.kt

@@ -1,21 +1,21 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getVec3
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.core.Direction
 import net.minecraft.world.phys.Vec3
 
-object OpCoerceToAxial : ConstManaOperator {
+object OpCoerceToAxial : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val vec = args.getChecked<Vec3>(0, argc)
+        val vec = args.getVec3(0, argc)
         if (vec == Vec3.ZERO)
-            return vec.asSpellResult
+            return vec.asActionResult
-        return Vec3.atLowerCornerOf(Direction.getNearest(vec.x, vec.y, vec.z).normal).asSpellResult
+        return Vec3.atLowerCornerOf(Direction.getNearest(vec.x, vec.y, vec.z).normal).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpConstructVec.kt

@@ -1,18 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.world.phys.Vec3
 
-object OpConstructVec : ConstManaOperator {
+object OpConstructVec : ConstManaAction {
     override val argc = 3
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val x = args.getChecked<Double>(0, argc)
+        val x = args.getDouble(0, argc)
-        val y = args.getChecked<Double>(1, argc)
+        val y = args.getDouble(1, argc)
-        val z = args.getChecked<Double>(2, argc)
+        val z = args.getDouble(2, argc)
-        return Vec3(x, y, z).asSpellResult
+        return Vec3(x, y, z).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpDeconstructVec.kt

@@ -1,16 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getVec3
-import at.petrak.hexcasting.api.spell.spellListOf
+import at.petrak.hexcasting.api.spell.iota.DoubleIota
-import net.minecraft.world.phys.Vec3
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpDeconstructVec : ConstManaOperator {
+object OpDeconstructVec : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val v = args.getChecked<Vec3>(0, argc)
+        val v = args.getVec3(0, argc)
-        return spellListOf(v.x, v.y, v.z)
+        return listOf(DoubleIota(v.x), DoubleIota(v.y), DoubleIota(v.z))
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpDivCross.kt

@@ -1,45 +1,42 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapDivideByZero
-import at.petrak.hexcasting.api.spell.spellListOf
 import net.minecraft.world.phys.Vec3
 
-object OpDivCross : ConstManaOperator {
+object OpDivCross : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = numOrVec(args[0], 1)
+        val lhs = args.getNumOrVec(0, argc)
-        val rhs = numOrVec(args[1], 0)
+        val rhs = args.getNumOrVec(1, argc)
+        val theMishap = MishapDivideByZero.of(args[0], args[1])
 
-        return spellListOf(
+        return lhs.map(
-            lhs.map({ lnum ->
+            { lnum ->
                 rhs.map(
                     { rnum ->
-                        if (rnum == 0.0)
+                        if (rnum == 0.0) throw theMishap // throw theMishap throw theMishap badumbadum
-                            throw MishapDivideByZero.of(lnum, rnum)
+                        (lnum / rnum).asActionResult
-                        lnum / rnum
                     },
                     { rvec ->
-                        if (rvec.x == 0.0 || rvec.y == 0.0 || rvec.z == 0.0)
+                        if (rvec.x == 0.0 || rvec.y == 0.0 || rvec.z == 0.0) throw theMishap
-                            throw MishapDivideByZero.of(lnum, rvec)
+                        Vec3(lnum / rvec.x, lnum / rvec.y, lnum / rvec.z).asActionResult
-                        Vec3(lnum / rvec.x, lnum / rvec.y, lnum / rvec.z)
                     }
                 )
             }, { lvec ->
                 rhs.map(
                     { rnum ->
-                        if (lvec == Vec3.ZERO)
+                        if (lvec == Vec3.ZERO) throw theMishap
-                            throw MishapDivideByZero.of(lvec, rnum)
+                        lvec.scale(1.0 / rnum).asActionResult
-                        lvec.scale(1.0 / rnum)
                     },
-                    { rvec -> lvec.cross(rvec) }
+                    { rvec -> lvec.cross(rvec).asActionResult }
                 )
             })
-        )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpFloor.kt

@@ -1,18 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.aplKinnie
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.floor
 
-object OpFloor : ConstManaOperator {
+object OpFloor : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getNumOrVec(0, argc)
-        return floor(value).asSpellResult
+        return listOf(aplKinnie(value, ::floor))
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpLog.kt

@@ -1,22 +1,22 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapDivideByZero
 import kotlin.math.log
 
-object OpLog : ConstManaOperator {
+object OpLog : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getDouble(0, argc)
-        val base = args.getChecked<Double>(1, argc)
+        val base = args.getDouble(1, argc)
         if (value <= 0.0 || base <= 0.0 || base == 1.0)
-            throw MishapDivideByZero.of(value, base, "logarithm")
+            throw MishapDivideByZero.of(args[0], args[1], "logarithm")
-        return log(value, base).asSpellResult
+        return log(value, base).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpModulo.kt

@@ -1,21 +1,22 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapDivideByZero
 
-object OpModulo : ConstManaOperator {
+object OpModulo : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val l = args.getChecked<Double>(0, argc)
+        // TODO: some wAckY vector operation to go in the vector x vector overload
-        val r = args.getChecked<Double>(1, argc)
+        val l = args.getDouble(0, argc)
+        val r = args.getDouble(1, argc)
         if (r == 0.0)
-            throw MishapDivideByZero.of(l, r)
+            throw MishapDivideByZero.of(args[0], args[1])
-        return (l % r).asSpellResult
+        return (l % r).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpMulDot.kt

@@ -1,29 +1,29 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.spellListOf
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpMulDot : ConstManaOperator {
+object OpMulDot : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = numOrVec(args[0], 1)
+        val lhs = args.getNumOrVec(0, OpAdd.argc)
-        val rhs = numOrVec(args[1], 0)
+        val rhs = args.getNumOrVec(1, OpAdd.argc)
 
-        return spellListOf(
+        return lhs.map(
-            lhs.map({ lnum ->
+            { lnum ->
                 rhs.map(
-                    { rnum -> lnum * rnum }, { rvec -> rvec.scale(lnum) }
+                    { rnum -> (lnum * rnum).asActionResult }, { rvec -> rvec.scale(lnum).asActionResult }
                 )
             }, { lvec ->
                 rhs.map(
-                    { rnum -> lvec.multiply(rnum, rnum, rnum) }, { rvec -> lvec.dot(rvec) }
+                    { rnum -> lvec.scale(rnum).asActionResult }, { rvec -> lvec.dot(rvec).asActionResult }
                 )
             })
-        )
+
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpPowProj.kt

@@ -1,49 +1,49 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapDivideByZero
-import at.petrak.hexcasting.api.spell.spellListOf
 import net.minecraft.world.phys.Vec3
 import kotlin.math.pow
 
-object OpPowProj : ConstManaOperator {
+object OpPowProj : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = numOrVec(args[0], 1)
+        val lhs = args.getNumOrVec(0, OpAdd.argc)
-        val rhs = numOrVec(args[1], 0)
+        val rhs = args.getNumOrVec(1, OpAdd.argc)
+        val theMishap = MishapDivideByZero.of(args[0], args[1], "exponent")
 
-        return spellListOf(
+        return lhs.map(
-            lhs.map({ lnum ->
+            { lnum ->
                 rhs.map(
                     { rnum ->
                         if (rnum == 0.0 && lnum == 0.0)
-                            throw MishapDivideByZero.of(lnum, rnum, "exponent")
+                            throw theMishap
-                        lnum.pow(rnum)
+                        lnum.pow(rnum).asActionResult
                     }, { rvec ->
                         if (lnum == 0.0 && (rvec.x == 0.0 || rvec.y == 0.0 || rvec.z == 0.0))
-                            throw MishapDivideByZero.of(lnum, rvec, "exponent")
+                            throw theMishap
-                        Vec3(lnum.pow(rvec.x), lnum.pow(rvec.y), lnum.pow(rvec.z))
+                        Vec3(lnum.pow(rvec.x), lnum.pow(rvec.y), lnum.pow(rvec.z)).asActionResult
                     }
                 )
             }, { lvec ->
                 rhs.map(
                     { rnum ->
                         if (rnum == 0.0 && (lvec.x == 0.0 || lvec.y == 0.0 || lvec.z == 0.0))
-                            throw MishapDivideByZero.of(lvec, rnum, "exponent")
+                            throw theMishap
-                        Vec3(lvec.x.pow(rnum), lvec.y.pow(rnum), lvec.z.pow(rnum))
+                        Vec3(lvec.x.pow(rnum), lvec.y.pow(rnum), lvec.z.pow(rnum)).asActionResult
                     },
                     { rvec ->
                         if (lvec == Vec3.ZERO)
-                            throw MishapDivideByZero.of(lvec, rvec, "project")
+                            throw MishapDivideByZero.of(args[0], args[1], "project")
-                        rvec.scale(rvec.dot(lvec) / lvec.dot(lvec))
+                        rvec.scale(rvec.dot(lvec) / lvec.dot(lvec)).asActionResult
                     }
                 )
             })
-        )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpRandom.kt

@@ -1,15 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpRandom : ConstManaOperator {
+object OpRandom : ConstManaAction {
     override val argc: Int
         get() = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return ctx.world.random.nextDouble().asSpellResult
+        return ctx.world.random.nextDouble().asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/OpSub.kt

@@ -1,30 +1,30 @@
 package at.petrak.hexcasting.common.casting.operators.math
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.numOrVec
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.spellListOf
+import at.petrak.hexcasting.api.spell.getNumOrVec
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.world.phys.Vec3
 
-object OpSub : ConstManaOperator {
+object OpSub : ConstManaAction {
     override val argc: Int
         get() = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = numOrVec(args[0], 1)
+        val lhs = args.getNumOrVec(0, OpAdd.argc)
-        val rhs = numOrVec(args[1], 0)
+        val rhs = args.getNumOrVec(1, OpAdd.argc)
 
-        return spellListOf(
+        return lhs.map({ lnum ->
-            lhs.map({ lnum ->
             rhs.map(
-                    { rnum -> lnum - rnum }, { rvec -> Vec3(lnum - rvec.x, lnum - rvec.y, lnum - rvec.z) }
+                { rnum -> (lnum - rnum).asActionResult },
+                { rvec -> Vec3(lnum - rvec.x, lnum - rvec.y, lnum - rvec.z).asActionResult }
             )
         }, { lvec ->
             rhs.map(
-                    { rnum -> lvec.subtract(rnum, rnum, rnum) }, { rvec -> lvec.subtract(rvec) }
+                { rnum -> lvec.subtract(rnum, rnum, rnum).asActionResult },
+                { rvec -> lvec.subtract(rvec).asActionResult }
             )
         })
-        )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/bit/OpAnd.kt

@@ -2,22 +2,23 @@ package at.petrak.hexcasting.common.casting.operators.math.bit
 
 import at.petrak.hexcasting.api.spell.*
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import kotlin.math.roundToInt
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpAnd : ConstManaOperator {
+object OpAnd : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val firstParam = numOrList(args[0], 0)
+        val firstParam = args.getLongOrList(0, argc)
 
-        if (firstParam.right().isPresent) {
+        return firstParam.map(
-            val list1 = firstParam.right().get()
+            { num1 ->
-            val list2 = args.getChecked<SpellList>(1, argc)
+                val num2 = args.getLong(1, argc)
-            return list1.filter { x -> list2.any(x::tolerantEquals) }.asSpellResult
+                (num1 and num2).asActionResult
+            },
+            { list1 ->
+                val list2 = args.getList(1, argc)
+                list1.filter { x -> list2.any { Iota.tolerates(x, it) } }.asActionResult
             }
-
+        )
-        val num1 = firstParam.left().get().roundToInt()
-        val num2 = args.getChecked<Double>(1, argc).roundToInt()
-        return (num1 and num2).asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/bit/OpNot.kt

@@ -1,17 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.math.bit
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getLong
-import kotlin.math.roundToInt
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpNot : ConstManaOperator {
+object OpNot : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val num = args.getChecked<Double>(0, argc).roundToInt()
+        val num = args.getLong(0, argc)
         return num.inv().asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/bit/OpOr.kt

@@ -2,23 +2,23 @@ package at.petrak.hexcasting.common.casting.operators.math.bit
 
 import at.petrak.hexcasting.api.spell.*
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import kotlin.math.roundToInt
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpOr : ConstManaOperator {
+object OpOr : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val firstParam = numOrList(args[0], 0)
+        val firstParam = args.getLongOrList(0, argc)
 
-        if (firstParam.right().isPresent) {
+        return firstParam.map(
-            val list1 = firstParam.right().get()
+            { num1 ->
-            val list2 = args.getChecked<SpellList>(1, argc)
+                val num2 = args.getLong(1, argc)
-            val out = list1 + list2.filter { x -> list1.none(x::tolerantEquals) }
+                (num1 or num2).asActionResult
-            return out.asSpellResult
+            },
+            { list1 ->
+                val list2 = args.getList(1, argc)
+                list1 + list2.filter { x -> list1.none { Iota.tolerates(x, it) } }.asActionResult
             }
-
+        )
-        val num1 = firstParam.left().get().roundToInt()
-        val num2 = args.getChecked<Double>(1, argc).roundToInt()
-        return (num1 or num2).asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/bit/OpToSet.kt

@@ -1,12 +1,24 @@
 package at.petrak.hexcasting.common.casting.operators.math.bit
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getList
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpToSet : ConstManaOperator {
+object OpToSet : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        return args.getChecked<SpellList>(0, argc).toSet().toList().asSpellResult
+        val list = args.getList(0, argc)
+        val out = mutableListOf<Iota>()
+
+        for (subiota in list) {
+            if (out.none { Iota.tolerates(it, subiota) }) {
+                out.add(subiota)
+            }
+        }
+
+        return out.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/bit/OpXor.kt

@@ -2,23 +2,32 @@ package at.petrak.hexcasting.common.casting.operators.math.bit
 
 import at.petrak.hexcasting.api.spell.*
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import kotlin.math.roundToInt
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpXor : ConstManaOperator {
+object OpXor : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val firstParam = numOrList(args[0], 0)
+        val firstParam = args.getLongOrList(0, argc)
 
-        if (firstParam.right().isPresent) {
+        return firstParam.map(
-            val list1 = firstParam.right().get()
+            { num1 ->
-            val list2 = args.getChecked<SpellList>(1, argc)
+                val num2 = args.getLong(1, argc)
-            val out = list1.filter { x1 -> list2.none(x1::tolerantEquals) } + list2.filter { x2 -> list1.none(x2::tolerantEquals) }
+                (num1 xor num2).asActionResult
-            return out.asSpellResult
+            },
+            { list1 ->
+                val list2 = args.getList(1, argc)
+                val out =
+                    list1.filter { x1 ->
+                        list2.none {
+                            Iota.tolerates(
+                                x1,
+                                it
+                            )
                         }
-
+                    } + list2.filter { x2 -> list1.none { Iota.tolerates(x2, it) } }
-        val num1 = firstParam.left().get().roundToInt()
+                out.asActionResult
-        val num2 = args.getChecked<Double>(1, argc).roundToInt()
+            }
-        return (num1 xor num2).asSpellResult
+        )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpBoolAnd.kt

@@ -1,19 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.Widget
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpBoolAnd : ConstManaOperator {
+object OpBoolAnd : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
         return listOf(
-            if (args[0].payload == Widget.NULL)
+            if (args[0].isTruthy) args[1] else args[0]
-                LegacySpellDatum.make(Widget.NULL)
-            else
-                args[1]
         )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpBoolIdentityKindOf.kt

@@ -1,23 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpBoolIdentityKindOf : ConstManaOperator {
+// TODO we need a whole-ass cleanup of our truthiness
+object OpBoolIdentityKindOf : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val payload = args[0].payload
+        return (args[0].isTruthy).asActionResult
-
-        if (payload == Widget.NULL)
-            return 0.asSpellResult
-
-        if (payload.tolerantEquals(0.0) || payload.tolerantEquals(1.0))
-            return null.asSpellResult
-
-        if (payload is SpellList)
-            return if (payload.nonEmpty) payload.asSpellResult else null.asSpellResult
-
-        return spellListOf(payload)
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpBoolNot.kt

@@ -1,16 +1,14 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import net.minecraft.world.phys.Vec3
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpBoolNot : ConstManaOperator {
+object OpBoolNot : ConstManaAction {
     override val argc = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val payload = args[0].payload
+        return (!args[0].isTruthy).asActionResult
-        val falsy =
-            payload == Widget.NULL || payload.tolerantEquals(0.0) || payload.tolerantEquals(Vec3.ZERO) || (payload is SpellList && !payload.nonEmpty)
-        return falsy.asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpBoolOr.kt

@@ -1,19 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.Widget
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpBoolOr : ConstManaOperator {
+object OpBoolOr : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
         return listOf(
-            if (args[0].payload == Widget.NULL)
+            if (args[0].isTruthy)
-                args[1]
-            else
                 args[0]
+            else
+                args[1]
         )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpBoolXor.kt

@@ -1,21 +1,24 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.Widget
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.iota.NullIota
 
-object OpBoolXor : ConstManaOperator {
+object OpBoolXor : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
+        val a = args[0]
+        val b = args[1]
+
         return listOf(
-            if (args[0].payload != Widget.NULL && args[1].payload == Widget.NULL)
+            if (a.isTruthy && !b.isTruthy)
-                args[0]
+                a
-            else if (args[0].payload == Widget.NULL && args[1].payload != Widget.NULL)
+            else if (!a.isTruthy && b.isTruthy)
-                args[1]
+                b
             else
-                LegacySpellDatum.make(Widget.NULL)
+                NullIota.INSTANCE
         )
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpCompare.kt

@@ -1,18 +1,22 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.*
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.DoubleIota
+import at.petrak.hexcasting.api.spell.iota.Iota
 import java.util.function.BiPredicate
 
-class OpCompare(val acceptsEqual: Boolean, val cmp: BiPredicate<Double, Double>) : ConstManaOperator {
+class OpCompare(val acceptsEqual: Boolean, val cmp: BiPredicate<Double, Double>) : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val lhs = args.getChecked<Double>(0, argc)
+        val lhs = args.getDouble(0, argc)
-        val rhs = args.getChecked<Double>(1, argc)
+        val rhs = args.getDouble(1, argc)
-        if (lhs.tolerantEquals(rhs))
+        if (DoubleIota.tolerates(lhs, rhs))
-            return acceptsEqual.asSpellResult
+            return acceptsEqual.asActionResult
 
-        return cmp.test(lhs, rhs).asSpellResult
+        return cmp.test(lhs, rhs).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/logic/OpEquality.kt

@@ -1,18 +1,17 @@
 package at.petrak.hexcasting.common.casting.operators.math.logic
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.tolerantEquals
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-class OpEquality(val invert: Boolean) : ConstManaOperator {
+class OpEquality(val invert: Boolean) : ConstManaAction {
     override val argc = 2
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
         val lhs = args[0]
         val rhs = args[1]
 
-        return (lhs.tolerantEquals(rhs) != invert).asSpellResult
+        return (Iota.tolerates(lhs, rhs) != invert).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpArcCos.kt

@@ -1,26 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDoubleBetween
-import at.petrak.hexcasting.api.spell.mishaps.MishapInvalidIota
+import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.utils.asTranslatedComponent
 import kotlin.math.acos
 
-object OpArcCos : ConstManaOperator {
+object OpArcCos : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getDoubleBetween(0, -1.0, 1.0, argc)
-        if (value < -1 || value > 1)
+        return acos(value).asActionResult
-            throw MishapInvalidIota(
-                LegacySpellDatum.make(value),
-                0,
-                "hexcasting.mishap.invalid_value.double.between".asTranslatedComponent(-1, 1)
-            )
-        return acos(value).asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpArcSin.kt

@@ -1,26 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDoubleBetween
-import at.petrak.hexcasting.api.spell.mishaps.MishapInvalidIota
+import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.utils.asTranslatedComponent
 import kotlin.math.asin
 
-object OpArcSin : ConstManaOperator {
+object OpArcSin : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getDoubleBetween(0, -1.0, 1.0, OpArcCos.argc)
-        if (value < -1 || value > 1)
+        return asin(value).asActionResult
-            throw MishapInvalidIota(
-                LegacySpellDatum.make(value),
-                0,
-                "hexcasting.mishap.invalid_value.double.between".asTranslatedComponent(-1, 1)
-            )
-        return asin(value).asSpellResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpArcTan.kt

@@ -1,18 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.atan
 
-object OpArcTan : ConstManaOperator {
+object OpArcTan : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val value = args.getChecked<Double>(0, argc)
+        val value = args.getDouble(0, argc)
-        return atan(value).asSpellResult
+        return atan(value).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpArcTan2.kt

@@ -0,0 +1,19 @@
+package at.petrak.hexcasting.common.casting.operators.math.trig
+
+import at.petrak.hexcasting.api.spell.ConstManaAction
+import at.petrak.hexcasting.api.spell.asActionResult
+import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
+import kotlin.math.atan2
+
+object OpArcTan2 : ConstManaAction {
+    override val argc: Int
+        get() = 2
+
+    override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
+        val y = args.getDouble(0, argc)
+        val x = args.getDouble(1, argc)
+        return atan2(y, x).asActionResult
+    }
+}

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpCos.kt

@@ -1,18 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.cos
 
-object OpCos : ConstManaOperator {
+object OpCos : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val angle = args.getChecked<Double>(0, argc)
+        val angle = args.getDouble(0, argc)
-        return cos(angle).asSpellResult
+        return cos(angle).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpSin.kt

@@ -1,18 +1,18 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.Iota
 import kotlin.math.sin
 
-object OpSin : ConstManaOperator {
+object OpSin : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val angle = args.getChecked<Double>(0, argc)
+        val angle = args.getDouble(0, argc)
-        return sin(angle).asSpellResult
+        return sin(angle).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/math/trig/OpTan.kt

@@ -1,22 +1,23 @@
 package at.petrak.hexcasting.common.casting.operators.math.trig
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getDouble
+import at.petrak.hexcasting.api.spell.iota.DoubleIota
+import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.mishaps.MishapDivideByZero
 import kotlin.math.cos
 import kotlin.math.tan
 
-object OpTan : ConstManaOperator {
+object OpTan : ConstManaAction {
     override val argc: Int
         get() = 1
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val angle = args.getChecked<Double>(0, argc)
+        val angle = args.getDouble(0, argc)
         if (cos(angle) == 0.0)
-            throw MishapDivideByZero.tan(angle)
+            throw MishapDivideByZero.tan(args[0] as DoubleIota)
-        return tan(angle).asSpellResult
+        return tan(angle).asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/selectors/OpGetCaster.kt

@@ -1,15 +1,15 @@
 package at.petrak.hexcasting.common.casting.operators.selectors
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
+import at.petrak.hexcasting.api.spell.iota.Iota
 
-object OpGetCaster : ConstManaOperator {
+object OpGetCaster : ConstManaAction {
     override val argc = 0
 
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
         ctx.assertEntityInRange(ctx.caster)
-        return ctx.caster.asSpellResult
+        return ctx.caster.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/selectors/OpGetEntitiesBy.kt

@@ -1,12 +1,12 @@
 package at.petrak.hexcasting.common.casting.operators.selectors
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.Operator.Companion.MAX_DISTANCE
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getPositiveDouble
-import at.petrak.hexcasting.api.spell.spellListOf
+import at.petrak.hexcasting.api.spell.getVec3
-import net.minecraft.util.Mth
+import at.petrak.hexcasting.api.spell.iota.EntityIota
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.world.entity.Entity
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.animal.Animal
@@ -18,29 +18,26 @@ import net.minecraft.world.phys.AABB
 import net.minecraft.world.phys.Vec3
 import java.util.function.Predicate
 
-class OpGetEntitiesBy(val checker: Predicate<Entity>, val negate: Boolean) : ConstManaOperator {
+class OpGetEntitiesBy(val checker: Predicate<Entity>, val negate: Boolean) : ConstManaAction {
     override val argc = 2
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val pos = args.getChecked<Vec3>(0, argc)
+        val pos = args.getVec3(0, argc)
-        val maybeRadius = args.getChecked<Double>(1, argc)
+        val radius = args.getPositiveDouble(1, argc)
         ctx.assertVecInRange(pos)
-        val radius = Mth.clamp(maybeRadius, 0.0, MAX_DISTANCE)
 
         val aabb = AABB(pos.add(Vec3(-radius, -radius, -radius)), pos.add(Vec3(radius, radius, radius)))
-        val entitiesGot = ctx.world.getEntities(
+        val entitiesGot = ctx.world.getEntities(null, aabb) {
-            null,
+            isReasonablySelectable(ctx, it)
-            aabb
+                    && it.distanceToSqr(pos) <= radius * radius
-        ) {
+                    && (checker.test(it) != negate)
-            (checker.test(it) != negate) && ctx.isEntityInRange(it) && it.isAlive && !it.isSpectator && it.distanceToSqr(
+        }.sortedBy { it.distanceToSqr(pos) }
-                pos
+        return entitiesGot.map(::EntityIota).asActionResult
-            ) <= radius * radius
     }
-            .sortedBy { it.distanceToSqr(pos) }
-        return spellListOf(entitiesGot)
-    }
-
 
     companion object {
+        fun isReasonablySelectable(ctx: CastingContext, e: Entity) =
+            ctx.isEntityInRange(e) && e.isAlive && !e.isSpectator
+
         @JvmStatic
         fun isAnimal(e: Entity): Boolean = e is Animal || e is WaterAnimal
 

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/selectors/OpGetEntityAt.kt

@@ -1,25 +1,26 @@
 package at.petrak.hexcasting.common.casting.operators.selectors
 
-import at.petrak.hexcasting.api.spell.ConstManaOperator
+import at.petrak.hexcasting.api.spell.ConstManaAction
-import at.petrak.hexcasting.api.spell.iota.Iota
+import at.petrak.hexcasting.api.spell.asActionResult
-import at.petrak.hexcasting.api.spell.asSpellResult
 import at.petrak.hexcasting.api.spell.casting.CastingContext
-import at.petrak.hexcasting.api.spell.getChecked
+import at.petrak.hexcasting.api.spell.getVec3
+import at.petrak.hexcasting.api.spell.iota.Iota
 import net.minecraft.world.entity.Entity
 import net.minecraft.world.phys.AABB
 import net.minecraft.world.phys.Vec3
 import java.util.function.Predicate
 
-class OpGetEntityAt(val checker: Predicate<Entity>) : ConstManaOperator {
+class OpGetEntityAt(val checker: Predicate<Entity>) : ConstManaAction {
     override val argc = 1
     override fun execute(args: List<Iota>, ctx: CastingContext): List<Iota> {
-        val pos = args.getChecked<Vec3>(0, argc)
+        val pos = args.getVec3(0, argc)
         ctx.assertVecInRange(pos)
         val aabb = AABB(pos.add(Vec3(-0.5, -0.5, -0.5)), pos.add(Vec3(0.5, 0.5, 0.5)))
-        val entitiesGot = ctx.world.getEntities(null, aabb)
+        val entitiesGot = ctx.world.getEntities(null, aabb) {
-            { checker.test(it) && ctx.isEntityInRange(it) && it.isAlive && !it.isSpectator }
+            OpGetEntitiesBy.isReasonablySelectable(ctx, it) && checker.test(it)
+        }.sortedBy { it.distanceToSqr(pos) }
 
         val entity = entitiesGot.getOrNull(0)
-        return entity.asSpellResult
+        return entity.asActionResult
     }
 }

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpAddMotion.kt

@@ -5,12 +5,12 @@ import at.petrak.hexcasting.api.spell.getChecked
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import net.minecraft.world.entity.Entity
 import net.minecraft.world.phys.Vec3
 
-object OpAddMotion : SpellOperator {
+object OpAddMotion : SpellAction {
     override val argc: Int
         get() = 2
 

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpBeep.kt

@@ -5,14 +5,14 @@ import at.petrak.hexcasting.api.spell.getChecked
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.common.network.MsgBeepAck
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 import net.minecraft.world.level.block.state.properties.NoteBlockInstrument
 import net.minecraft.world.phys.Vec3
 
-object OpBeep : SpellOperator {
+object OpBeep : SpellAction {
     override val argc = 3
 
     override fun execute(

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpBlink.kt

@@ -12,7 +12,7 @@ import net.minecraft.world.entity.Entity
 import kotlin.math.max
 import kotlin.math.roundToInt
 
-object OpBlink : SpellOperator {
+object OpBlink : SpellAction {
     override val argc = 2
     override fun execute(
         args: List<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpBreakBlock.kt

@@ -8,7 +8,7 @@ import at.petrak.hexcasting.xplat.IXplatAbstractions
 import net.minecraft.core.BlockPos
 import net.minecraft.world.phys.Vec3
 
-object OpBreakBlock : SpellOperator {
+object OpBreakBlock : SpellAction {
     override val argc: Int
         get() = 1
 

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpColorize.kt

@@ -5,12 +5,12 @@ import at.petrak.hexcasting.api.misc.ManaConstants
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadOffhandItem
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
-object OpColorize : SpellOperator {
+object OpColorize : SpellAction {
     override val argc = 0
 
     override fun execute(

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpConjure.kt

@@ -13,7 +13,7 @@ import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.context.DirectionalPlaceContext
 import net.minecraft.world.phys.Vec3
 
-class OpConjure(val light: Boolean) : SpellOperator {
+class OpConjure(val light: Boolean) : SpellAction {
     override val argc = 1
     override fun execute(
         args: List<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpCreateWater.kt

@@ -15,7 +15,7 @@ import net.minecraft.world.level.block.LayeredCauldronBlock
 import net.minecraft.world.level.material.Fluids
 import net.minecraft.world.phys.Vec3
 
-object OpCreateWater : SpellOperator {
+object OpCreateWater : SpellAction {
     override val argc = 1
     override fun execute(
         args: List<Iota>,

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpDestroyWater.kt

@@ -17,7 +17,7 @@ import net.minecraft.world.level.material.Fluids
 import net.minecraft.world.level.material.Material
 import net.minecraft.world.phys.Vec3
 
-object OpDestroyWater : SpellOperator {
+object OpDestroyWater : SpellAction {
     override val argc = 1
     override fun execute(
         args: List<Iota>,
@@ -53,7 +53,7 @@ object OpDestroyWater : SpellOperator {
                 val here = todo.removeFirst()
                 val distFromFocus =
                     ctx.caster.position().distanceToSqr(Vec3.atCenterOf(here))
-                if (distFromFocus < Operator.MAX_DISTANCE * Operator.MAX_DISTANCE && seen.add(here) && ctx.world.mayInteract(ctx.caster, here)) {
+                if (distFromFocus < Action.MAX_DISTANCE * Action.MAX_DISTANCE && seen.add(here) && ctx.world.mayInteract(ctx.caster, here)) {
                     // never seen this pos in my life
                     val fluid = ctx.world.getFluidState(here)
                     if (fluid != Fluids.EMPTY.defaultFluidState()) {

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpEdifySapling.kt

@@ -5,7 +5,7 @@ import at.petrak.hexcasting.api.spell.getChecked
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
 import at.petrak.hexcasting.api.spell.iota.Iota
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadBlock
 import at.petrak.hexcasting.common.misc.AkashicTreeGrower
@@ -13,7 +13,7 @@ import net.minecraft.core.BlockPos
 import net.minecraft.tags.BlockTags
 import net.minecraft.world.phys.Vec3
 
-object OpEdifySapling : SpellOperator {
+object OpEdifySapling : SpellAction {
     override val argc = 1
 
     override fun execute(

Common/src/main/java/at/petrak/hexcasting/common/casting/operators/spells/OpErase.kt

@@ -4,12 +4,12 @@ import at.petrak.hexcasting.api.misc.ManaConstants
 import at.petrak.hexcasting.api.spell.iota.Iota
 import at.petrak.hexcasting.api.spell.ParticleSpray
 import at.petrak.hexcasting.api.spell.RenderedSpell
-import at.petrak.hexcasting.api.spell.SpellOperator
+import at.petrak.hexcasting.api.spell.SpellAction
 import at.petrak.hexcasting.api.spell.casting.CastingContext
 import at.petrak.hexcasting.api.spell.mishaps.MishapBadOffhandItem
 import at.petrak.hexcasting.xplat.IXplatAbstractions
 
-class OpErase : SpellOperator {
+class OpErase : SpellAction {
     override val argc = 0
 
     override fun execute(