feat: implement AdvancedStructurePoolFeatureConfig

gradle.properties

@@ -16,7 +16,7 @@ loom.platform=forge
     yarn_mappings=1.18.2+build.4
 
 # Mod Properties
-    mod_version=0.1.0
+    mod_version=0.1.1
     maven_group=net.anvilcraft
     archives_base_name=anvillib-18
     mod_id=anvillib

src/main/java/net/anvilcraft/anvillib/mixin/common/StructurePoolBasedGeneratorMixin.java

@@ -0,0 +1,32 @@
+package net.anvilcraft.anvillib.mixin.common;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+
+import net.anvilcraft.anvillib.worldgen.AdvancedStructurePoolFeatureConfig;
+import net.minecraft.structure.PoolStructurePiece;
+import net.minecraft.structure.pool.StructurePoolBasedGenerator;
+import net.minecraft.util.math.Box;
+import net.minecraft.world.gen.feature.StructurePoolFeatureConfig;
+
+@Mixin(StructurePoolBasedGenerator.class)
+public class StructurePoolBasedGeneratorMixin {
+    // this is a lambda
+    @ModifyVariable(method = "method_39824", at = @At(value = "STORE", ordinal = 0))
+    private static Box adjustAdvBoundingBox(
+        Box box, PoolStructurePiece alec, StructurePoolFeatureConfig conf
+    ) {
+        if (conf instanceof AdvancedStructurePoolFeatureConfig aconf) {
+            return new Box(
+                box.minX + 80 - aconf.maxDistanceFromCenter,
+                box.minY + 80 - aconf.maxDistanceFromCenter,
+                box.minZ + 80 - aconf.maxDistanceFromCenter,
+                box.maxX - 80 + aconf.maxDistanceFromCenter,
+                box.maxY - 80 + aconf.maxDistanceFromCenter,
+                box.maxZ - 80 + aconf.maxDistanceFromCenter
+            );
+        }
+        return box;
+    }
+}

src/main/java/net/anvilcraft/anvillib/worldgen/AdvancedStructurePoolFeatureConfig.java

@@ -0,0 +1,41 @@
+package net.anvilcraft.anvillib.worldgen;
+
+import com.mojang.serialization.Codec;
+import com.mojang.serialization.codecs.RecordCodecBuilder;
+
+import net.minecraft.structure.pool.StructurePool;
+import net.minecraft.util.registry.RegistryEntry;
+import net.minecraft.world.gen.feature.StructurePoolFeatureConfig;
+
+public class AdvancedStructurePoolFeatureConfig extends StructurePoolFeatureConfig {
+    public static final Codec<StructurePoolFeatureConfig> CODEC = RecordCodecBuilder.create(
+        (instance) -> {
+            return instance
+                .group(
+                    StructurePool.REGISTRY_CODEC.fieldOf("start_pool")
+                        .forGetter(
+                            (self) -> ((AdvancedStructurePoolFeatureConfig) self).getStartPool()
+                        ),
+                    Codec.intRange(0, 7).fieldOf("size").forGetter(
+                        (self) -> ((AdvancedStructurePoolFeatureConfig) self).getSize()
+                    ),
+                    Codec.INT.fieldOf("max_distance_from_center")
+                        .forGetter(
+                            (self)
+                                -> ((AdvancedStructurePoolFeatureConfig) self)
+                                       .maxDistanceFromCenter
+                        )
+                )
+                .apply(instance, AdvancedStructurePoolFeatureConfig::new);
+        }
+    );
+
+    public final int maxDistanceFromCenter;
+
+    public AdvancedStructurePoolFeatureConfig(
+        RegistryEntry<StructurePool> startPool, int size, int maxDistanceFromCenter
+    ) {
+        super(startPool, size);
+        this.maxDistanceFromCenter = maxDistanceFromCenter;
+    }
+}

src/main/resources/anvillib.mixins.json

@@ -4,7 +4,8 @@
     "compatibilityLevel": "JAVA_17",
     "minVersion": "0.8",
     "mixins": [
-        "common.RecipeManagerMixin"
+        "common.RecipeManagerMixin",
+        "common.StructurePoolBasedGeneratorMixin"
     ],
     "client": [],
     "injectors": {