--- a/net/minecraft/server/EntityEnderDragon.java +++ b/net/minecraft/server/EntityEnderDragon.java @@ -6,7 +6,13 @@ import javax.annotation.Nullable; import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; +// CraftBukkit start +import org.bukkit.craftbukkit.block.CraftBlock; +import org.bukkit.event.entity.EntityExplodeEvent; +import org.bukkit.event.entity.EntityRegainHealthEvent; +// CraftBukkit end +// PAIL: Fixme public class EntityEnderDragon extends EntityInsentient implements IMonster { private static final Logger LOGGER = LogManager.getLogger(); @@ -38,6 +44,7 @@ private final PathPoint[] bR = new PathPoint[24]; private final int[] bS = new int[24]; private final Path bT = new Path(); + private Explosion explosionSource = new Explosion(null, this, Double.NaN, Double.NaN, Double.NaN, Float.NaN, true, Explosion.Effect.DESTROY); // CraftBukkit - reusable source for CraftTNTPrimed.getSource() public EntityEnderDragon(EntityTypes<? extends EntityEnderDragon> entitytypes, World world) { super(EntityTypes.ENDER_DRAGON, world); @@ -177,7 +184,7 @@ Vec3D vec3d1 = idragoncontroller.g(); - if (vec3d1 != null) { + if (vec3d1 != null && idragoncontroller.getControllerPhase() != DragonControllerPhase.HOVER) { // CraftBukkit - Don't move when hovering d0 = vec3d1.x - this.locX(); d1 = vec3d1.y - this.locY(); d2 = vec3d1.z - this.locZ(); @@ -315,7 +322,14 @@ if (this.currentEnderCrystal.dead) { this.currentEnderCrystal = null; } else if (this.ticksLived % 10 == 0 && this.getHealth() < this.getMaxHealth()) { - this.setHealth(this.getHealth() + 1.0F); + // CraftBukkit start + EntityRegainHealthEvent event = new EntityRegainHealthEvent(this.getBukkitEntity(), 1.0F, EntityRegainHealthEvent.RegainReason.ENDER_CRYSTAL); + this.world.getServer().getPluginManager().callEvent(event); + + if (!event.isCancelled()) { + this.setHealth((float) (this.getHealth() + event.getAmount())); + } + // CraftBukkit end } } @@ -390,6 +404,9 @@ int j1 = MathHelper.floor(axisalignedbb.maxZ); boolean flag = false; boolean flag1 = false; + // CraftBukkit start - Create a list to hold all the destroyed blocks + List<org.bukkit.block.Block> destroyedBlocks = new java.util.ArrayList<org.bukkit.block.Block>(); + // CraftBukkit end for (int k1 = i; k1 <= l; ++k1) { for (int l1 = j; l1 <= i1; ++l1) { @@ -400,7 +417,11 @@ if (!iblockdata.isAir() && iblockdata.getMaterial() != Material.FIRE) { if (this.world.getGameRules().getBoolean(GameRules.MOB_GRIEFING) && !TagsBlock.DRAGON_IMMUNE.isTagged(block)) { - flag1 = this.world.a(blockposition, false) || flag1; + // CraftBukkit start - Add blocks to list rather than destroying them + // flag1 = this.world.a(blockposition, false) || flag1; + flag1 = true; + destroyedBlocks.add(CraftBlock.at(world, blockposition)); + // CraftBukkit end } else { flag = true; } @@ -409,6 +430,51 @@ } } + // CraftBukkit start - Set off an EntityExplodeEvent for the dragon exploding all these blocks + // SPIGOT-4882: don't fire event if nothing hit + if (!flag1) { + return flag; + } + + org.bukkit.entity.Entity bukkitEntity = this.getBukkitEntity(); + EntityExplodeEvent event = new EntityExplodeEvent(bukkitEntity, bukkitEntity.getLocation(), destroyedBlocks, 0F); + bukkitEntity.getServer().getPluginManager().callEvent(event); + if (event.isCancelled()) { + // This flag literally means 'Dragon hit something hard' (Obsidian, White Stone or Bedrock) and will cause the dragon to slow down. + // We should consider adding an event extension for it, or perhaps returning true if the event is cancelled. + return flag; + } else if (event.getYield() == 0F) { + // Yield zero ==> no drops + for (org.bukkit.block.Block block : event.blockList()) { + this.world.a(new BlockPosition(block.getX(), block.getY(), block.getZ()), false); + } + } else { + for (org.bukkit.block.Block block : event.blockList()) { + org.bukkit.Material blockId = block.getType(); + if (blockId == org.bukkit.Material.AIR) { + continue; + } + + CraftBlock craftBlock = ((CraftBlock) block); + BlockPosition blockposition = craftBlock.getPosition(); + + Block nmsBlock = craftBlock.getNMS().getBlock(); + if (nmsBlock.a(explosionSource)) { + TileEntity tileentity = nmsBlock.isTileEntity() ? this.world.getTileEntity(blockposition) : null; + LootTableInfo.Builder loottableinfo_builder = (new LootTableInfo.Builder((WorldServer) this.world)).a(this.world.random).set(LootContextParameters.POSITION, blockposition).set(LootContextParameters.TOOL, ItemStack.a).set(LootContextParameters.EXPLOSION_RADIUS, 1.0F / event.getYield()).setOptional(LootContextParameters.BLOCK_ENTITY, tileentity); + + craftBlock.getNMS().a(loottableinfo_builder).forEach((itemstack) -> { + Block.a(world, blockposition, itemstack); + }); + craftBlock.getNMS().dropNaturally(world, blockposition, ItemStack.a); + } + nmsBlock.wasExploded(world, blockposition, explosionSource); + + this.world.a(blockposition, false); + } + } + // CraftBukkit end + if (flag1) { BlockPosition blockposition1 = new BlockPosition(i + this.random.nextInt(l - i + 1), j + this.random.nextInt(i1 - j + 1), k + this.random.nextInt(j1 - k + 1));