package net.minecraft.server; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Random; import java.util.Set; // CraftBukkit start import org.bukkit.event.entity.EntityDamageByBlockEvent; import org.bukkit.event.entity.EntityDamageByEntityEvent; import org.bukkit.event.entity.EntityDamageEvent; import org.bukkit.event.entity.EntityExplodeEvent; import org.bukkit.event.entity.EntityDamageEvent.DamageCause; import org.bukkit.Location; // CraftBukkit end public class Explosion { public boolean a = false; private Random h = new Random(); private World world; public double posX; public double posY; public double posZ; public Entity source; public float size; public Set blocks = new HashSet(); public boolean wasCanceled = false; // CraftBukkit public Explosion(World world, Entity entity, double d0, double d1, double d2, float f) { this.world = world; this.source = entity; this.size = f; this.posX = d0; this.posY = d1; this.posZ = d2; } public void a() { float f = this.size; byte b0 = 16; int i; int j; int k; double d0; double d1; double d2; for (i = 0; i < b0; ++i) { for (j = 0; j < b0; ++j) { for (k = 0; k < b0; ++k) { if (i == 0 || i == b0 - 1 || j == 0 || j == b0 - 1 || k == 0 || k == b0 - 1) { double d3 = (double) ((float) i / ((float) b0 - 1.0F) * 2.0F - 1.0F); double d4 = (double) ((float) j / ((float) b0 - 1.0F) * 2.0F - 1.0F); double d5 = (double) ((float) k / ((float) b0 - 1.0F) * 2.0F - 1.0F); double d6 = Math.sqrt(d3 * d3 + d4 * d4 + d5 * d5); d3 /= d6; d4 /= d6; d5 /= d6; float f1 = this.size * (0.7F + this.world.random.nextFloat() * 0.6F); d0 = this.posX; d1 = this.posY; d2 = this.posZ; for (float f2 = 0.3F; f1 > 0.0F; f1 -= f2 * 0.75F) { int l = MathHelper.floor(d0); int i1 = MathHelper.floor(d1); int j1 = MathHelper.floor(d2); int k1 = this.world.getTypeId(l, i1, j1); if (k1 > 0) { f1 -= (Block.byId[k1].a(this.source) + 0.3F) * f2; } if (f1 > 0.0F) { this.blocks.add(new ChunkPosition(l, i1, j1)); } d0 += d3 * (double) f2; d1 += d4 * (double) f2; d2 += d5 * (double) f2; } } } } } this.size *= 2.0F; i = MathHelper.floor(this.posX - (double) this.size - 1.0D); j = MathHelper.floor(this.posX + (double) this.size + 1.0D); k = MathHelper.floor(this.posY - (double) this.size - 1.0D); int l1 = MathHelper.floor(this.posY + (double) this.size + 1.0D); int i2 = MathHelper.floor(this.posZ - (double) this.size - 1.0D); int j2 = MathHelper.floor(this.posZ + (double) this.size + 1.0D); List list = this.world.b(this.source, AxisAlignedBB.b((double) i, (double) k, (double) i2, (double) j, (double) l1, (double) j2)); Vec3D vec3d = Vec3D.create(this.posX, this.posY, this.posZ); for (int k2 = 0; k2 < list.size(); ++k2) { Entity entity = (Entity) list.get(k2); double d7 = entity.e(this.posX, this.posY, this.posZ) / (double) this.size; if (d7 <= 1.0D) { d0 = entity.locX - this.posX; d1 = entity.locY - this.posY; d2 = entity.locZ - this.posZ; double d8 = (double) MathHelper.a(d0 * d0 + d1 * d1 + d2 * d2); d0 /= d8; d1 /= d8; d2 /= d8; double d9 = (double) this.world.a(vec3d, entity.boundingBox); double d10 = (1.0D - d7) * d9; // CraftBukkit start - explosion damage hook org.bukkit.Server server = this.world.getServer(); org.bukkit.entity.Entity damagee = (entity == null) ? null : entity.getBukkitEntity(); int damageDone = (int) ((d10 * d10 + d10) / 2.0D * 8.0D * (double) this.size + 1.0D); if (damagee == null) { // nothing was hurt } else if (this.source == null) { // Block explosion // TODO: get the x/y/z of the tnt block? // does this even get called ever? @see EntityTNTPrimed - not BlockTNT or whatever EntityDamageByBlockEvent event = new EntityDamageByBlockEvent(null, damagee, EntityDamageEvent.DamageCause.BLOCK_EXPLOSION, damageDone); server.getPluginManager().callEvent(event); if (!event.isCancelled()) { entity.damageEntity(this.source, event.getDamage()); entity.motX += d0 * d10; entity.motY += d1 * d10; entity.motZ += d2 * d10; } } else { EntityDamageByEntityEvent event = new EntityDamageByEntityEvent(this.source.getBukkitEntity(), damagee, EntityDamageEvent.DamageCause.ENTITY_EXPLOSION, damageDone); server.getPluginManager().callEvent(event); if (!event.isCancelled()) { entity.damageEntity(this.source, event.getDamage()); entity.motX += d0 * d10; entity.motY += d1 * d10; entity.motZ += d2 * d10; } } // CraftBukkit end } } this.size = f; ArrayList arraylist = new ArrayList(); arraylist.addAll(this.blocks); if (this.a) { for (int l2 = arraylist.size() - 1; l2 >= 0; --l2) { ChunkPosition chunkposition = (ChunkPosition) arraylist.get(l2); int i3 = chunkposition.x; int j3 = chunkposition.y; int k3 = chunkposition.z; int l3 = this.world.getTypeId(i3, j3, k3); int i4 = this.world.getTypeId(i3, j3 - 1, k3); if (l3 == 0 && Block.o[i4] && this.h.nextInt(3) == 0) { this.world.setTypeId(i3, j3, k3, Block.FIRE.id); } } } } public void a(boolean flag) { this.world.makeSound(this.posX, this.posY, this.posZ, "random.explode", 4.0F, (1.0F + (this.world.random.nextFloat() - this.world.random.nextFloat()) * 0.2F) * 0.7F); ArrayList arraylist = new ArrayList(); arraylist.addAll(this.blocks); // CraftBukkit start org.bukkit.World bworld = this.world.getWorld(); org.bukkit.entity.Entity explode = this.source == null ? null : this.source.getBukkitEntity(); Location location = new Location(bworld, this.posX, this.posY, this.posZ); List blockList = new ArrayList(); for (int j = arraylist.size() - 1; j >= 0; j--) { ChunkPosition cpos = (ChunkPosition) arraylist.get(j); org.bukkit.block.Block block = bworld.getBlockAt(cpos.x, cpos.y, cpos.z); if (block.getType() != org.bukkit.Material.AIR) { blockList.add(block); } } EntityExplodeEvent event = new EntityExplodeEvent(explode, location, blockList); this.world.getServer().getPluginManager().callEvent(event); if (event.isCancelled()) { this.wasCanceled = true; return; } // CraftBukkit end for (int i = arraylist.size() - 1; i >= 0; --i) { ChunkPosition chunkposition = (ChunkPosition) arraylist.get(i); int j = chunkposition.x; int k = chunkposition.y; int l = chunkposition.z; int i1 = this.world.getTypeId(j, k, l); if (flag) { double d0 = (double) ((float) j + this.world.random.nextFloat()); double d1 = (double) ((float) k + this.world.random.nextFloat()); double d2 = (double) ((float) l + this.world.random.nextFloat()); double d3 = d0 - this.posX; double d4 = d1 - this.posY; double d5 = d2 - this.posZ; double d6 = (double) MathHelper.a(d3 * d3 + d4 * d4 + d5 * d5); d3 /= d6; d4 /= d6; d5 /= d6; double d7 = 0.5D / (d6 / (double) this.size + 0.1D); d7 *= (double) (this.world.random.nextFloat() * this.world.random.nextFloat() + 0.3F); d3 *= d7; d4 *= d7; d5 *= d7; this.world.a("explode", (d0 + this.posX * 1.0D) / 2.0D, (d1 + this.posY * 1.0D) / 2.0D, (d2 + this.posZ * 1.0D) / 2.0D, d3, d4, d5); this.world.a("smoke", d0, d1, d2, d3, d4, d5); } // CraftBukkit - stop explosions from putting out fire if (i1 > 0 && i1 != Block.FIRE.id) { // CraftBukkit Block.byId[i1].dropNaturally(this.world, j, k, l, this.world.getData(j, k, l), event.getYield()); this.world.setTypeId(j, k, l, 0); Block.byId[i1].d(this.world, j, k, l); } } } }