Paper/Spigot-Server-Patches/0024-FallingBlock-and-TNTPrimed-source-location-API.patch

From 1b4d0016dc95c2e8fe1eba1a0d823f0da1292e41 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 1 Mar 2016 23:45:08 -0600
Subject: [PATCH] FallingBlock and TNTPrimed source location API


diff --git a/src/main/java/net/minecraft/server/BlockDragonEgg.java b/src/main/java/net/minecraft/server/BlockDragonEgg.java
index f6095af..5c12227 100644
--- a/src/main/java/net/minecraft/server/BlockDragonEgg.java
+++ b/src/main/java/net/minecraft/server/BlockDragonEgg.java
@@ -33,7 +33,10 @@ public class BlockDragonEgg extends Block {
             byte b0 = 32;
 
             if (!BlockFalling.instaFall && world.areChunksLoadedBetween(blockposition.a(-b0, -b0, -b0), blockposition.a(b0, b0, b0))) {
-                world.addEntity(new EntityFallingBlock(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), this.getBlockData()));
+                // Paper start - Add FallingBlock source location API
+                org.bukkit.Location loc = new org.bukkit.Location(world.getWorld(), (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F));
+                world.addEntity(new EntityFallingBlock(loc, world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), this.getBlockData()));
+                // Paper end
             } else {
                 world.setAir(blockposition);
 
diff --git a/src/main/java/net/minecraft/server/BlockFalling.java b/src/main/java/net/minecraft/server/BlockFalling.java
index 6654240..936a754 100644
--- a/src/main/java/net/minecraft/server/BlockFalling.java
+++ b/src/main/java/net/minecraft/server/BlockFalling.java
@@ -36,7 +36,10 @@ public class BlockFalling extends Block {
 
             if (!BlockFalling.instaFall && world.areChunksLoadedBetween(blockposition.a(-b0, -b0, -b0), blockposition.a(b0, b0, b0))) {
                 if (!world.isClientSide) {
-                    EntityFallingBlock entityfallingblock = new EntityFallingBlock(world, (double) blockposition.getX() + 0.5D, (double) blockposition.getY(), (double) blockposition.getZ() + 0.5D, world.getType(blockposition));
+                    // Paper start - Add FallingBlock source location
+                    org.bukkit.Location loc = new org.bukkit.Location(world.getWorld(), (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F));
+                    EntityFallingBlock entityfallingblock = new EntityFallingBlock(loc, world, (double) blockposition.getX() + 0.5D, (double) blockposition.getY(), (double) blockposition.getZ() + 0.5D, world.getType(blockposition));
+                    // Paper end
 
                     this.a(entityfallingblock);
                     world.addEntity(entityfallingblock);
diff --git a/src/main/java/net/minecraft/server/BlockTNT.java b/src/main/java/net/minecraft/server/BlockTNT.java
index f794167..09d5f7b 100644
--- a/src/main/java/net/minecraft/server/BlockTNT.java
+++ b/src/main/java/net/minecraft/server/BlockTNT.java
@@ -29,7 +29,8 @@ public class BlockTNT extends Block {
 
     public void wasExploded(World world, BlockPosition blockposition, Explosion explosion) {
         if (!world.isClientSide) {
-            EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), explosion.getSource());
+            org.bukkit.Location loc = explosion.source instanceof EntityTNTPrimed ? ((EntityTNTPrimed) explosion.source).sourceLoc : new org.bukkit.Location(world.getWorld(), blockposition.getX(), blockposition.getY(), blockposition.getZ()); // Paper
+            EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(loc, world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), explosion.getSource()); // Paper - Add loc
 
             entitytntprimed.setFuseTicks((short) (world.random.nextInt(entitytntprimed.getFuseTicks() / 4) + entitytntprimed.getFuseTicks() / 8));
             world.addEntity(entitytntprimed);
@@ -43,7 +44,8 @@ public class BlockTNT extends Block {
     public void a(World world, BlockPosition blockposition, IBlockData iblockdata, EntityLiving entityliving) {
         if (!world.isClientSide) {
             if (((Boolean) iblockdata.get(BlockTNT.EXPLODE)).booleanValue()) {
-                EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), entityliving);
+                org.bukkit.Location loc = new org.bukkit.Location(world.getWorld(), blockposition.getX(), blockposition.getY(), blockposition.getZ()); // Paper
+                EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(loc, world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), entityliving); // Paper - Add loc
 
                 world.addEntity(entitytntprimed);
                 world.a((EntityHuman) null, entitytntprimed.locX, entitytntprimed.locY, entitytntprimed.locZ, SoundEffects.gj, SoundCategory.BLOCKS, 1.0F, 1.0F);
diff --git a/src/main/java/net/minecraft/server/DispenserRegistry.java b/src/main/java/net/minecraft/server/DispenserRegistry.java
index d7bea3d..c1c0c7c 100644
--- a/src/main/java/net/minecraft/server/DispenserRegistry.java
+++ b/src/main/java/net/minecraft/server/DispenserRegistry.java
@@ -519,7 +519,7 @@ public class DispenserRegistry {
                     }
                 }
 
-                EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, event.getVelocity().getX(), event.getVelocity().getY(), event.getVelocity().getZ(), (EntityLiving) null);
+                EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(block.getLocation(), world, event.getVelocity().getX(), event.getVelocity().getY(), event.getVelocity().getZ(), (EntityLiving) null); // Paper - Add source loc
                 // CraftBukkit end
 
                 world.addEntity(entitytntprimed);
diff --git a/src/main/java/net/minecraft/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
index 4c8e336..c44e493 100644
--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
@@ -17,13 +17,25 @@ public class EntityFallingBlock extends Entity {
     private float fallHurtAmount = 2.0F;
     public NBTTagCompound tileEntityData;
     protected static final DataWatcherObject<BlockPosition> d = DataWatcher.a(EntityFallingBlock.class, DataWatcherRegistry.j);
+    public org.bukkit.Location sourceLoc; // Paper
 
+    // Paper start - FallingBlock source location API
     public EntityFallingBlock(World world) {
+        this(null, world);
+    }
+
+    public EntityFallingBlock(org.bukkit.Location loc, World world) {
         super(world);
     }
 
     public EntityFallingBlock(World world, double d0, double d1, double d2, IBlockData iblockdata) {
+        this(null, world, d0, d1, d2, iblockdata);
+    }
+
+    public EntityFallingBlock(org.bukkit.Location loc, World world, double d0, double d1, double d2, IBlockData iblockdata) {
         super(world);
+        sourceLoc = loc;
+        // Paper end
         this.block = iblockdata;
         this.i = true;
         this.setSize(0.98F, 0.98F);
@@ -206,6 +218,13 @@ public class EntityFallingBlock extends Entity {
             nbttagcompound.set("TileEntityData", this.tileEntityData);
         }
 
+        // Paper start - Add FallingBlock source location API
+        if (sourceLoc != null) {
+            nbttagcompound.setInt("SourceLoc_x", sourceLoc.getBlockX());
+            nbttagcompound.setInt("SourceLoc_y", sourceLoc.getBlockY());
+            nbttagcompound.setInt("SourceLoc_z", sourceLoc.getBlockZ());
+        }
+        // Paper end
     }
 
     protected void a(NBTTagCompound nbttagcompound) {
@@ -242,6 +261,14 @@ public class EntityFallingBlock extends Entity {
             this.block = Blocks.SAND.getBlockData();
         }
 
+        // Paper start - Add FallingBlock source location API
+        if (nbttagcompound.hasKey("SourceLoc_x")) {
+            int srcX = nbttagcompound.getInt("SourceLoc_x");
+            int srcY = nbttagcompound.getInt("SourceLoc_y");
+            int srcZ = nbttagcompound.getInt("SourceLoc_z");
+            sourceLoc = new org.bukkit.Location(world.getWorld(), srcX, srcY, srcZ);
+        }
+        // Paper end
     }
 
     public void a(boolean flag) {
diff --git a/src/main/java/net/minecraft/server/EntityTNTPrimed.java b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
index 564ea37..1820c7b 100644
--- a/src/main/java/net/minecraft/server/EntityTNTPrimed.java
+++ b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
@@ -9,16 +9,28 @@ public class EntityTNTPrimed extends Entity {
     private int c;
     public float yield = 4; // CraftBukkit - add field
     public boolean isIncendiary = false; // CraftBukkit - add field
+    public org.bukkit.Location sourceLoc; // Paper - TNT soure location API
 
+    // Paper start - TNT source location API
     public EntityTNTPrimed(World world) {
+        this(null, world);
+    }
+
+    public EntityTNTPrimed(org.bukkit.Location loc, World world) {
         super(world);
+        sourceLoc = loc;
+        // Paper end
         this.c = 80;
         this.i = true;
         this.setSize(0.98F, 0.98F);
     }
 
     public EntityTNTPrimed(World world, double d0, double d1, double d2, EntityLiving entityliving) {
-        this(world);
+        this(null, world, d0, d1, d2, entityliving);
+    }
+
+    public EntityTNTPrimed(org.bukkit.Location loc, World world, double d0, double d1, double d2, EntityLiving entityliving) {
+        this(loc, world);
         this.setPosition(d0, d1, d2);
         float f = (float) (Math.random() * 6.2831854820251465D);
 
@@ -100,10 +112,25 @@ public class EntityTNTPrimed extends Entity {
 
     protected void b(NBTTagCompound nbttagcompound) {
         nbttagcompound.setShort("Fuse", (short) this.getFuseTicks());
+        // Paper start - TNT source location API
+        if (sourceLoc != null) {
+            nbttagcompound.setInt("SourceLoc_x", sourceLoc.getBlockX());
+            nbttagcompound.setInt("SourceLoc_y", sourceLoc.getBlockY());
+            nbttagcompound.setInt("SourceLoc_z", sourceLoc.getBlockZ());
+        }
+        // Paper end
     }
 
     protected void a(NBTTagCompound nbttagcompound) {
         this.setFuseTicks(nbttagcompound.getShort("Fuse"));
+        // Paper start - TNT source location API
+        if (nbttagcompound.hasKey("SourceLoc_x")) {
+            int srcX = nbttagcompound.getInt("SourceLoc_x");
+            int srcY = nbttagcompound.getInt("SourceLoc_y");
+            int srcZ = nbttagcompound.getInt("SourceLoc_z");
+            sourceLoc = new org.bukkit.Location(world.getWorld(), srcX, srcY, srcZ);
+        }
+        // Paper end
     }
 
     public EntityLiving getSource() {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index db29976..dfb656a 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -880,7 +880,10 @@ public class CraftWorld implements World {
         double y = location.getBlockY() + 0.5;
         double z = location.getBlockZ() + 0.5;
 
-        EntityFallingBlock entity = new EntityFallingBlock(world, x, y, z, net.minecraft.server.Block.getById(material.getId()).fromLegacyData(data));
+        // Paper start - Add FallingBlock source location API
+        location = location.clone();
+        EntityFallingBlock entity = new EntityFallingBlock(location, world, x, y, z, net.minecraft.server.Block.getById(material.getId()).fromLegacyData(data));
+        // Paper end
         entity.ticksLived = 1;
 
         world.addEntity(entity, SpawnReason.CUSTOM);
@@ -916,7 +919,10 @@ public class CraftWorld implements World {
             int type = CraftMagicNumbers.getId(blockData.getBlock());
             int data = blockData.getBlock().toLegacyData(blockData);
 
-            entity = new EntityFallingBlock(world, x + 0.5, y + 0.5, z + 0.5, net.minecraft.server.Block.getById(type).fromLegacyData(data));
+            // Paper start - Add FallingBlock source location API
+            location = location.clone();
+            entity = new EntityFallingBlock(location, world, x + 0.5, y + 0.5, z + 0.5, net.minecraft.server.Block.getById(type).fromLegacyData(data));
+            // Paper end
         } else if (Projectile.class.isAssignableFrom(clazz)) {
             if (Snowball.class.isAssignableFrom(clazz)) {
                 entity = new EntitySnowball(world, x, y, z);
@@ -1108,7 +1114,8 @@ public class CraftWorld implements World {
                 throw new IllegalArgumentException("Cannot spawn hanging entity for " + clazz.getName() + " at " + location);
             }
         } else if (TNTPrimed.class.isAssignableFrom(clazz)) {
-            entity = new EntityTNTPrimed(world, x, y, z, null);
+            org.bukkit.Location loc = new org.bukkit.Location(world.getWorld(), x, y, z); // Paper
+            entity = new EntityTNTPrimed(loc, world, x, y, z, null);
         } else if (ExperienceOrb.class.isAssignableFrom(clazz)) {
             entity = new EntityExperienceOrb(world, x, y, z, 0);
         } else if (Weather.class.isAssignableFrom(clazz)) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingSand.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingSand.java
index 75eed48..9e6ed0c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingSand.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFallingSand.java
@@ -57,4 +57,11 @@ public class CraftFallingSand extends CraftEntity implements FallingSand {
     public void setHurtEntities(boolean hurtEntities) {
         getHandle().hurtEntities = hurtEntities;
     }
+
+    // Paper start - Add FallingBlock source location API
+    @Override
+    public org.bukkit.Location getSourceLoc() {
+        return getHandle().sourceLoc;
+    }
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftTNTPrimed.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftTNTPrimed.java
index c493c9c..eea3238 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftTNTPrimed.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftTNTPrimed.java
@@ -65,4 +65,11 @@ public class CraftTNTPrimed extends CraftEntity implements TNTPrimed {
 
         return null;
     }
+
+    // Paper start
+    @Override
+    public org.bukkit.Location getSourceLoc() {
+        return getHandle().sourceLoc;
+    }
+    // Paper end
 }
-- 
2.7.2