package net.minecraft.server; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Random; // CraftBukkit start import org.bukkit.Bukkit; 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.Location; // CraftBukkit end public class Explosion { public boolean a = false; public boolean b = true; private int i = 16; private Random j = new Random(); private World world; public double posX; public double posY; public double posZ; public Entity source; public float size; public List blocks = new ArrayList(); private Map l = new HashMap(); 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 = (float) Math.max(f, 0.0); // CraftBukkit - clamp bad values this.posX = d0; this.posY = d1; this.posZ = d2; } public void a() { // CraftBukkit start if (this.size < 0.1F) { return; } // CraftBukkit end float f = this.size; HashSet hashset = new HashSet(); int i; int j; int k; double d0; double d1; double d2; for (i = 0; i < this.i; ++i) { for (j = 0; j < this.i; ++j) { for (k = 0; k < this.i; ++k) { if (i == 0 || i == this.i - 1 || j == 0 || j == this.i - 1 || k == 0 || k == this.i - 1) { double d3 = (double) ((float) i / ((float) this.i - 1.0F) * 2.0F - 1.0F); double d4 = (double) ((float) j / ((float) this.i - 1.0F) * 2.0F - 1.0F); double d5 = (double) ((float) k / ((float) this.i - 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) { Block block = Block.byId[k1]; float f3 = this.source != null ? this.source.a(this, block, l, i1, j1) : block.a(this.source); f1 -= (f3 + 0.3F) * f2; } if (f1 > 0.0F && i1 < 256 && i1 >= 0) { // CraftBukkit - don't wrap explosions hashset.add(new ChunkPosition(l, i1, j1)); } d0 += d3 * (double) f2; d1 += d4 * (double) f2; d2 += d5 * (double) f2; } } } } } this.blocks.addAll(hashset); 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.getEntities(this.source, AxisAlignedBB.a().a((double) i, (double) k, (double) i2, (double) j, (double) l1, (double) j2)); Vec3D vec3d = this.world.getVec3DPool().create(this.posX, this.posY, this.posZ); for (int k2 = 0; k2 < list.size(); ++k2) { Entity entity = (Entity) list.get(k2); double d7 = entity.f(this.posX, this.posY, this.posZ) / (double) this.size; if (d7 <= 1.0D) { d0 = entity.locX - this.posX; d1 = entity.locY + (double) entity.getHeadHeight() - this.posY; d2 = entity.locZ - this.posZ; double d8 = (double) MathHelper.sqrt(d0 * d0 + d1 * d1 + d2 * d2); if (d8 != 0.0D) { 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.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 (without an entity source; bed etc.) EntityDamageByBlockEvent event = new EntityDamageByBlockEvent(null, damagee, EntityDamageEvent.DamageCause.BLOCK_EXPLOSION, damageDone); Bukkit.getPluginManager().callEvent(event); if (!event.isCancelled()) { damagee.setLastDamageCause(event); entity.damageEntity(DamageSource.EXPLOSION, event.getDamage()); entity.motX += d0 * d10; entity.motY += d1 * d10; entity.motZ += d2 * d10; if (entity instanceof EntityHuman) { this.l.put((EntityHuman) entity, this.world.getVec3DPool().create(d0 * d10, d1 * d10, d2 * d10)); } } } else { final org.bukkit.entity.Entity damager = this.source.getBukkitEntity(); final EntityDamageEvent.DamageCause damageCause; if (damager instanceof org.bukkit.entity.TNTPrimed) { damageCause = EntityDamageEvent.DamageCause.BLOCK_EXPLOSION; } else { damageCause = EntityDamageEvent.DamageCause.ENTITY_EXPLOSION; } EntityDamageByEntityEvent event = new EntityDamageByEntityEvent(damager, damagee, damageCause, damageDone); Bukkit.getPluginManager().callEvent(event); if (!event.isCancelled()) { entity.getBukkitEntity().setLastDamageCause(event); entity.damageEntity(DamageSource.EXPLOSION, event.getDamage()); entity.motX += d0 * d10; entity.motY += d1 * d10; entity.motZ += d2 * d10; if (entity instanceof EntityHuman) { this.l.put((EntityHuman) entity, this.world.getVec3DPool().create(d0 * d10, d1 * d10, d2 * d10)); } } } // CraftBukkit end } } } this.size = f; } 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); if (this.size >= 2.0F && this.b) { this.world.addParticle("hugeexplosion", this.posX, this.posY, this.posZ, 1.0D, 0.0D, 0.0D); } else { this.world.addParticle("largeexplode", this.posX, this.posY, this.posZ, 1.0D, 0.0D, 0.0D); } Iterator iterator; ChunkPosition chunkposition; int i; int j; int k; int l; if (this.b) { // 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 i1 = this.blocks.size() - 1; i1 >= 0; i1--) { ChunkPosition cpos = (ChunkPosition) this.blocks.get(i1); 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, 0.3F); this.world.getServer().getPluginManager().callEvent(event); this.blocks.clear(); for (org.bukkit.block.Block block : event.blockList()) { ChunkPosition coords = new ChunkPosition(block.getX(), block.getY(), block.getZ()); blocks.add(coords); } if (event.isCancelled()) { this.wasCanceled = true; return; } // CraftBukkit end iterator = this.blocks.iterator(); while (iterator.hasNext()) { chunkposition = (ChunkPosition) iterator.next(); i = chunkposition.x; j = chunkposition.y; k = chunkposition.z; l = this.world.getTypeId(i, j, k); if (flag) { double d0 = (double) ((float) i + this.world.random.nextFloat()); double d1 = (double) ((float) j + this.world.random.nextFloat()); double d2 = (double) ((float) k + this.world.random.nextFloat()); double d3 = d0 - this.posX; double d4 = d1 - this.posY; double d5 = d2 - this.posZ; double d6 = (double) MathHelper.sqrt(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.addParticle("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.addParticle("smoke", d0, d1, d2, d3, d4, d5); } // CraftBukkit - stop explosions from putting out fire if (l > 0 && l != Block.FIRE.id) { Block block = Block.byId[l]; if (block.a(this)) { // CraftBukkit block.dropNaturally(this.world, i, j, k, this.world.getData(i, j, k), event.getYield(), 0); } if (this.world.setRawTypeIdAndData(i, j, k, 0, 0, this.world.isStatic)) { this.world.applyPhysics(i, j, k, 0); } block.wasExploded(this.world, i, j, k); } } } if (this.a) { iterator = this.blocks.iterator(); while (iterator.hasNext()) { chunkposition = (ChunkPosition) iterator.next(); i = chunkposition.x; j = chunkposition.y; k = chunkposition.z; l = this.world.getTypeId(i, j, k); int i1 = this.world.getTypeId(i, j - 1, k); if (l == 0 && Block.q[i1] && this.j.nextInt(3) == 0) { this.world.setTypeId(i, j, k, Block.FIRE.id); } } } } public Map b() { return this.l; } }