Paper/Spigot-Server-Patches/0278-Add-TNTPrimeEvent.patch

From 7f43982ceaf4025eb8c116872d604a3c575256c5 Mon Sep 17 00:00:00 2001
From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Date: Mon, 16 Jul 2018 00:05:05 +0300
Subject: [PATCH] Add TNTPrimeEvent


diff --git a/src/main/java/net/minecraft/server/BlockFire.java b/src/main/java/net/minecraft/server/BlockFire.java
index 73190ccbaa..4086d5ed2d 100644
--- a/src/main/java/net/minecraft/server/BlockFire.java
+++ b/src/main/java/net/minecraft/server/BlockFire.java
@@ -2,6 +2,7 @@ package net.minecraft.server;
 
 import it.unimi.dsi.fastutil.objects.Object2IntMap;
 import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
+import com.destroystokyo.paper.event.block.TNTPrimeEvent; // Paper - TNTPrimeEvent
 import java.util.Map;
 import java.util.Random;
 import java.util.Map.Entry;
@@ -237,7 +238,7 @@ public class BlockFire extends Block {
 
                 world.setTypeAndData(blockposition, (IBlockData) this.a((IBlockAccess) world, blockposition).set(BlockFire.AGE, l), 3);
             } else {
-                world.a(blockposition, false);
+                if(iblockdata.getBlock() != Blocks.TNT) world.a(blockposition, false); // Paper - TNTPrimeEvent - We might be cancelling it below, move the setAir down
             }
 
             Block block = iblockdata.getBlock();
@@ -245,6 +246,13 @@ public class BlockFire extends Block {
             if (block instanceof BlockTNT) {
                 BlockTNT blocktnt = (BlockTNT) block;
 
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);
+                if (!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.FIRE, null).callEvent()) {
+                    return;
+                }
+                BlockTNT.a(world, blockposition);; // setair after non cancelled event, it would usually be air by now
+                // Paper end
                 BlockTNT.a(world, blockposition);
             }
         }
diff --git a/src/main/java/net/minecraft/server/BlockTNT.java b/src/main/java/net/minecraft/server/BlockTNT.java
index 8cb36ed3a4..88d0238718 100644
--- a/src/main/java/net/minecraft/server/BlockTNT.java
+++ b/src/main/java/net/minecraft/server/BlockTNT.java
@@ -1,6 +1,7 @@
 package net.minecraft.server;
 
 import javax.annotation.Nullable;
+import com.destroystokyo.paper.event.block.TNTPrimeEvent; // Paper - TNTPrimeEvent
 
 public class BlockTNT extends Block {
 
@@ -15,6 +16,11 @@ public class BlockTNT extends Block {
     public void onPlace(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1, boolean flag) {
         if (iblockdata1.getBlock() != iblockdata.getBlock()) {
             if (world.isBlockIndirectlyPowered(blockposition)) {
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);;
+                if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.REDSTONE, null).callEvent())
+                    return;
+                // Paper end
                 a(world, blockposition);
                 world.a(blockposition, false);
             }
@@ -25,6 +31,11 @@ public class BlockTNT extends Block {
     @Override
     public void doPhysics(IBlockData iblockdata, World world, BlockPosition blockposition, Block block, BlockPosition blockposition1, boolean flag) {
         if (world.isBlockIndirectlyPowered(blockposition)) {
+            // Paper start - TNTPrimeEvent
+            org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);;
+            if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.REDSTONE, null).callEvent())
+                return;
+            // Paper end
             a(world, blockposition);
             world.a(blockposition, false);
         }
@@ -43,6 +54,12 @@ public class BlockTNT extends Block {
     @Override
     public void wasExploded(World world, BlockPosition blockposition, Explosion explosion) {
         if (!world.isClientSide) {
+            // Paper start - TNTPrimeEvent
+            org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);;
+            org.bukkit.entity.Entity source = explosion.source != null ? explosion.source.bukkitEntity : null;
+            if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.EXPLOSION, source).callEvent())
+                return;
+            // Paper end
             EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), explosion.getSource());
 
             entitytntprimed.setFuseTicks((short) (world.random.nextInt(entitytntprimed.getFuseTicks() / 4) + entitytntprimed.getFuseTicks() / 8));
@@ -71,6 +88,11 @@ public class BlockTNT extends Block {
         if (item != Items.FLINT_AND_STEEL && item != Items.FIRE_CHARGE) {
             return super.interact(iblockdata, world, blockposition, entityhuman, enumhand, movingobjectpositionblock);
         } else {
+            // Paper start - TNTPrimeEvent
+            org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);
+            if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.ITEM, entityhuman.bukkitEntity).callEvent())
+                return true;
+            // Paper end
             a(world, blockposition, (EntityLiving) entityhuman);
             world.setTypeAndData(blockposition, Blocks.AIR.getBlockData(), 11);
             if (item == Items.FLINT_AND_STEEL) {
@@ -97,6 +119,12 @@ public class BlockTNT extends Block {
                     return;
                 }
                 // CraftBukkit end
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);
+                if (!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.PROJECTILE, entityarrow.bukkitEntity).callEvent()) {
+                    return;
+                }
+                // Paper end
                 a(world, blockposition, entity1 instanceof EntityLiving ? (EntityLiving) entity1 : null);
                 world.a(blockposition, false);
             }
diff --git a/src/main/java/net/minecraft/server/EntityEnderDragon.java b/src/main/java/net/minecraft/server/EntityEnderDragon.java
index b0651a7086..6d51413d18 100644
--- a/src/main/java/net/minecraft/server/EntityEnderDragon.java
+++ b/src/main/java/net/minecraft/server/EntityEnderDragon.java
@@ -11,6 +11,7 @@ import org.bukkit.craftbukkit.block.CraftBlock;
 import org.bukkit.event.entity.EntityExplodeEvent;
 import org.bukkit.event.entity.EntityRegainHealthEvent;
 // CraftBukkit end
+import com.destroystokyo.paper.event.block.TNTPrimeEvent; // Paper - TNTPrimeEvent
 
 // PAIL: Fixme
 public class EntityEnderDragon extends EntityInsentient implements IMonster {
@@ -463,6 +464,11 @@ public class EntityEnderDragon extends EntityInsentient implements IMonster {
 
                     Block.b(craftBlock.getNMS(), loottableinfo_builder);
                 }
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = world.getWorld().getBlockAt(blockposition.x, blockposition.y, blockposition.z);
+                if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.EXPLOSION, explosionSource.getSource().bukkitEntity).callEvent())
+                    continue;
+                // Paper end
                 nmsBlock.wasExploded(world, blockposition, explosionSource);
 
                 this.world.a(blockposition, false);
-- 
2.21.0