From b4841ff955cc1223c70fecf891a4951f7518acbc 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 24573b4704..ea428e2daf 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;
@@ -234,12 +235,19 @@ public class BlockFire extends Block {
 
                 world.setTypeAndData(blockposition, (IBlockData) this.a((IBlockAccess) world, blockposition).set(BlockFire.AGE, Integer.valueOf(l)), 3);
             } else {
-                world.setAir(blockposition);
+                if(iblockdata.getBlock() != Blocks.TNT) world.setAir(blockposition); // Paper - TNTPrimeEvent - We might be cancelling it below, move the setAir down
             }
 
             Block block = iblockdata.getBlock();
 
             if (block instanceof BlockTNT) {
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = MCUtil.toBukkitBlock(world, blockposition);
+                if (!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.FIRE, null).callEvent()) {
+                    return;
+                }
+                world.setAir(blockposition); // setair after non cancelled event, it would usually be air by now
+                // Paper end
                 ((BlockTNT) block).a(world, blockposition);
             }
         }
diff --git a/src/main/java/net/minecraft/server/BlockTNT.java b/src/main/java/net/minecraft/server/BlockTNT.java
index 81c5b60ea1..5fddb29612 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 {
 
@@ -14,6 +15,11 @@ public class BlockTNT extends Block {
     public void onPlace(IBlockData iblockdata, World world, BlockPosition blockposition, IBlockData iblockdata1) {
         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
                 this.a(world, blockposition);
                 world.setAir(blockposition);
             }
@@ -23,6 +29,11 @@ public class BlockTNT extends Block {
 
     public void doPhysics(IBlockData iblockdata, World world, BlockPosition blockposition, Block block, BlockPosition blockposition1) {
         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
             this.a(world, blockposition);
             world.setAir(blockposition);
         }
@@ -45,6 +56,12 @@ public class BlockTNT extends Block {
 
     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));
@@ -72,6 +89,11 @@ public class BlockTNT extends Block {
         if (item != Items.FLINT_AND_STEEL && item != Items.FIRE_CHARGE) {
             return super.interact(iblockdata, world, blockposition, entityhuman, enumhand, enumdirection, f, f1, f2);
         } 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
             this.a(world, blockposition, (EntityLiving) entityhuman);
             world.setTypeAndData(blockposition, Blocks.AIR.getBlockData(), 11);
             if (item == Items.FLINT_AND_STEEL) {
@@ -95,6 +117,12 @@ 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
                 this.a(world, blockposition, entity1 instanceof EntityLiving ? (EntityLiving) entity1 : null);
                 world.setAir(blockposition);
             }
diff --git a/src/main/java/net/minecraft/server/EntityEnderDragon.java b/src/main/java/net/minecraft/server/EntityEnderDragon.java
index 2c735a920d..74d96a2f09 100644
--- a/src/main/java/net/minecraft/server/EntityEnderDragon.java
+++ b/src/main/java/net/minecraft/server/EntityEnderDragon.java
@@ -9,6 +9,7 @@ import org.apache.logging.log4j.Logger;
 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 IComplex, IMonster {
@@ -474,6 +475,11 @@ public class EntityEnderDragon extends EntityInsentient implements IComplex, IMo
                     BlockPosition pos = new BlockPosition(blockX, blockY, blockZ);
                     nmsBlock.dropNaturally(world.getType(pos), world, pos, event.getYield(), 0);
                 }
+                // Paper start - TNTPrimeEvent
+                org.bukkit.block.Block tntBlock = world.getWorld().getBlockAt(blockX, blockY, blockZ);
+                if(!new TNTPrimeEvent(tntBlock, TNTPrimeEvent.PrimeReason.EXPLOSION, explosionSource.getSource().bukkitEntity).callEvent())
+                    continue;
+                // Paper end
                 nmsBlock.wasExploded(world, new BlockPosition(blockX, blockY, blockZ), explosionSource);
 
                 this.world.setAir(new BlockPosition(blockX, blockY, blockZ));
-- 
2.19.0