Prototype version of rift signature.

src/main/java/org/dimdev/dimdoors/shared/items/ItemRiftSignature.java

@@ -1,26 +1,208 @@
 package org.dimdev.dimdoors.shared.items;
 
+import lombok.ToString;
+import lombok.Value;
+import net.minecraft.block.Block;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.*;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.text.translation.I18n;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
+import org.dimdev.ddutils.Location;
 import org.dimdev.dimdoors.DimDoors;
 import org.dimdev.ddutils.I18nUtils;
 import net.minecraft.client.util.ITooltipFlag;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
-import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
+import org.dimdev.dimdoors.shared.blocks.IRiftProvider;
+import org.dimdev.dimdoors.shared.blocks.ModBlocks;
+import org.dimdev.dimdoors.shared.rifts.GlobalDestination;
+import org.dimdev.dimdoors.shared.rifts.RiftDestination;
+import org.dimdev.dimdoors.shared.rifts.TileEntityRift;
+import org.dimdev.dimdoors.shared.sound.ModSounds;
 
 import java.util.List;
 
+import static org.dimdev.ddutils.I18nUtils.translateAndAdd;
+
 public class ItemRiftSignature extends Item {
     public static final String ID = "rift_signature";
 
     public ItemRiftSignature() {
-        setCreativeTab(DimDoors.DIM_DOORS_CREATIVE_TAB);
-        setUnlocalizedName(ID);
-        setRegistryName(new ResourceLocation(DimDoors.MODID, ID));
+        super();
+        this.setMaxStackSize(1);
+        this.setMaxDamage(0);
+        this.hasSubtypes = true;
+        this.setCreativeTab(DimDoors.DIM_DOORS_CREATIVE_TAB);
+        this.setUnlocalizedName(ID);
+        this.setRegistryName(new ResourceLocation(DimDoors.MODID, ID));
+    }
+
+    @SideOnly(Side.CLIENT)
+    @Override
+    public boolean hasEffect(ItemStack stack) {
+        return stack.getItemDamage() != 0;
     }
 
+    @Override
+    public EnumActionResult onItemUseFirst(EntityPlayer player, World world, BlockPos pos, EnumFacing side, float hitX, float hitY, float hitZ, EnumHand hand) {
+        // We must use onItemUseFirst() instead of onItemUse() because Minecraft checks
+        // whether the user is in creative mode after calling onItemUse() and undoes any
+        // damage we might set to indicate the rift sig has been activated. Otherwise,
+        // we would need to rely on checking NBT tags for hasEffect() and that function
+        // gets called constantly. Avoiding NBT lookups reduces our performance impact.
+
+        // Return false on the client side to pass this request to the server
+        if (world.isRemote) {
+            return EnumActionResult.FAIL;
+        }
+
+        ItemStack stack = player.getHeldItem(hand);
+
+        //Increase y by 2 to place the rift at head level
+        BlockPos adjustedPos = adjustYForSpecialBlocks(world, pos.up(2));
+        if (!player.canPlayerEdit(adjustedPos, side, stack)) {
+            return EnumActionResult.PASS;
+        }
+
+        Transform source = getSource(stack);
+        int orientation = MathHelper.floor(((player.rotationYaw + 180.0F) * 4.0F / 360.0F) - 0.5D);
+
+        if (source != null) {
+
+            // Try placing a rift at the destination point
+            world.setBlockState(adjustedPos, ModBlocks.RIFT.getDefaultState());
+            TileEntityRift rift1 = (TileEntityRift) source.getLocation().getTileEntity();
+            rift1.setSingleDestination(new GlobalDestination(source.getLocation()));
+            rift1.setRotation(source.getYaw(), 0);
+            rift1.register();
+
+            // Try placing a rift at the source point
+            // We don't need to check if sourceWorld is null - that's already handled.
+            World sourceWorld = source.getLocation().getWorld();
+            sourceWorld.setBlockState(source.location.getPos(), ModBlocks.RIFT.getDefaultState());
+            TileEntityRift rift2 = (TileEntityRift) source.getLocation().getTileEntity();
+            rift2.setSingleDestination(new GlobalDestination(source.getLocation()));
+            rift2.setRotation(source.getYaw(), 0);
+            rift2.register();
+
+
+            if (!player.capabilities.isCreativeMode) {
+                stack.setCount(stack.getCount() - 1);
+            }
+
+            clearSource(stack);
+            DimDoors.chat(player, "Rift Created");
+            world.playSound(player, player.getPosition(), ModSounds.RIFT_END, SoundCategory.BLOCKS, 0.6f, 1);
+        } else {
+            //The link signature has not been used. Store its current target as the first location.
+            setSource(stack, new Transform(new Location(world, adjustedPos), orientation));
+            DimDoors.chat(player, "Location Stored in Rift Signature");
+            world.playSound(player, player.getPosition(), ModSounds.RIFT_START, SoundCategory.BLOCKS, 0.6f, 1);
+        }
+
+        return EnumActionResult.SUCCESS;
+    }
+
+    public static void setSource(ItemStack itemStack, Transform destination) {
+        NBTTagCompound tag = new NBTTagCompound();
+
+        tag.setTag("destination", Transform.writeToNBT(destination));
+
+        itemStack.setTagCompound(tag);
+        itemStack.setItemDamage(1);
+    }
+
+    public static void clearSource(ItemStack itemStack) {
+        //Don't just set the tag to null since there may be other data there (e.g. for renamed items)
+        NBTTagCompound tag = itemStack.getTagCompound();
+        tag.removeTag("destination");
+        itemStack.setItemDamage(0);
+    }
+
+    public static Transform getSource(ItemStack itemStack) {
+        if (itemStack.getItemDamage() != 0) {
+            if (itemStack.hasTagCompound()) {
+                NBTTagCompound tag = itemStack.getTagCompound();
+
+                Transform transform = Transform.readFromNBT(tag.getCompoundTag("destination"));
+
+                return transform;
+            }
+
+            // Mark the item as uninitialized if its source couldn't be read
+            itemStack.setItemDamage(0);
+        }
+
+        return null;
+    }
+
+    public static BlockPos adjustYForSpecialBlocks(World world, BlockPos pos) {
+        BlockPos target = pos.down(2); // Get the block the player actually clicked on
+        Block block = world.getBlockState(target).getBlock();
+        if (block == null) {
+            return target.up(2);
+        }
+        if (block.isReplaceable(world, pos)) {
+            return target.up(); // Move block placement down (-2+1) one so its directly over things like snow
+        }
+        if (block instanceof IRiftProvider) {
+            if (((IRiftProvider) block).hasTileEntity(world.getBlockState(target))) {
+                return target; // Move rift placement down two so its in the right place on the door.
+            }
+            // Move rift placement down one so its in the right place on the door.
+            return target.up();
+        }
+        return target.up(2);
+    }
+
+    @SideOnly(Side.CLIENT)
     @Override
     public void addInformation(ItemStack stack, World worldIn, List<String> tooltip, ITooltipFlag flagIn) {
-        I18nUtils.translateAndAdd("info.rift_signature.unbound", tooltip);
+        Transform transform = getSource(stack);
+
+        if (transform != null)
+            tooltip.add(I18n.translateToLocalFormatted("info.rift_signature.bound", transform.getLocation().getX(), transform.getLocation().getY(), transform.getLocation().getZ(), transform.getLocation().getDim()));
+        else translateAndAdd("info.rift_signature.unbound", tooltip);
+    }
+
+    @ToString
+    @Value
+    public static class Transform {
+        private Location location;
+        private int yaw;
+
+        public Transform(Location location, int yaw) {
+            this.location = location;
+            this.yaw = yaw;
+        }
+
+        public Location getLocation() {
+            return location;
+        }
+
+        public int getYaw() {
+            return yaw;
+        }
+
+        public static NBTTagCompound writeToNBT(Transform transform) {
+            NBTTagCompound transformNBT = new NBTTagCompound();
+
+            transformNBT.setTag("location", Location.writeToNBT(transform.getLocation()));
+            transformNBT.setInteger("yaw", transform.getYaw());
+            return transformNBT;
+        }
+
+        public static Transform readFromNBT(NBTTagCompound transformNBT) {
+            Location location = Location.readFromNBT(transformNBT);
+            int yaw = transformNBT.getInteger("yaw");
+
+            return new Transform(location, yaw);
+        }
+
     }
 }

src/main/java/org/dimdev/dimdoors/shared/items/ModItems.java

@@ -27,6 +27,7 @@ public final class ModItems {
     public static final ItemRiftConnectionTool RIFT_CONNECTION_TOOL = new ItemRiftConnectionTool();
     public static final ItemRiftBlade RIFT_BLADE = new ItemRiftBlade();
     public static final ItemRiftRemover RIFT_REMOVER = new ItemRiftRemover();
+    public static final ItemRiftSignature RIFT_SIGNATURE = new ItemRiftSignature();
 
     // ItemBlocks
     public static final ItemFabric FABRIC = new ItemFabric();
@@ -46,7 +47,8 @@ public final class ModItems {
                 WORLD_THREAD,
                 RIFT_CONNECTION_TOOL,
                 RIFT_BLADE,
-                RIFT_REMOVER);
+                RIFT_REMOVER,
+                RIFT_SIGNATURE);
 
         // ItemBlocks
         event.getRegistry().registerAll(