package net.minecraft.world;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.enchantment.EnchantmentProtection;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityTNTPrimed;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.BlockPos;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.MathHelper;
import net.minecraft.util.Vec3;
public class Explosion
{
/** whether or not the explosion sets fire to blocks around it */
private final boolean isFlaming;
/** whether or not this explosion spawns smoke particles */
private final boolean isSmoking;
private final Random explosionRNG = new Random();
private final World worldObj;
private final double explosionX;
private final double explosionY;
private final double explosionZ;
private final Entity exploder;
private final float explosionSize;
/** A list of ChunkPositions of blocks affected by this explosion */
private final List affectedBlockPositions = Lists.newArrayList();
private final Map field_77288_k = Maps.newHashMap();
private static final String __OBFID = "CL_00000134";
public Explosion(World worldIn, Entity p_i45754_2_, double p_i45754_3_, double p_i45754_5_, double p_i45754_7_, float p_i45754_9_, boolean p_i45754_10_, boolean p_i45754_11_)
{
this.worldObj = worldIn;
this.exploder = p_i45754_2_;
this.explosionSize = p_i45754_9_;
this.explosionX = p_i45754_3_;
this.explosionY = p_i45754_5_;
this.explosionZ = p_i45754_7_;
this.isFlaming = p_i45754_10_;
this.isSmoking = p_i45754_11_;
}
/**
* Does the first part of the explosion (destroy blocks)
*/
public void doExplosionA()
{
HashSet var1 = Sets.newHashSet();
boolean var2 = true;
int var4;
int var5;
for (int var3 = 0; var3 < 16; ++var3)
{
for (var4 = 0; var4 < 16; ++var4)
{
for (var5 = 0; var5 < 16; ++var5)
{
if (var3 == 0 || var3 == 15 || var4 == 0 || var4 == 15 || var5 == 0 || var5 == 15)
{
double var6 = (double)((float)var3 / 15.0F * 2.0F - 1.0F);
double var8 = (double)((float)var4 / 15.0F * 2.0F - 1.0F);
double var10 = (double)((float)var5 / 15.0F * 2.0F - 1.0F);
double var12 = Math.sqrt(var6 * var6 + var8 * var8 + var10 * var10);
var6 /= var12;
var8 /= var12;
var10 /= var12;
float var14 = this.explosionSize * (0.7F + this.worldObj.rand.nextFloat() * 0.6F);
double var15 = this.explosionX;
double var17 = this.explosionY;
double var19 = this.explosionZ;
for (float var21 = 0.3F; var14 > 0.0F; var14 -= 0.22500001F)
{
BlockPos var22 = new BlockPos(var15, var17, var19);
IBlockState var23 = this.worldObj.getBlockState(var22);
if (var23.getBlock().getMaterial() != Material.air)
{
float var24 = this.exploder != null ? this.exploder.getExplosionResistance(this, this.worldObj, var22, var23) : var23.getBlock().getExplosionResistance((Entity)null);
var14 -= (var24 + 0.3F) * 0.3F;
}
if (var14 > 0.0F && (this.exploder == null || this.exploder.func_174816_a(this, this.worldObj, var22, var23, var14)))
{
var1.add(var22);
}
var15 += var6 * 0.30000001192092896D;
var17 += var8 * 0.30000001192092896D;
var19 += var10 * 0.30000001192092896D;
}
}
}
}
}
this.affectedBlockPositions.addAll(var1);
float var30 = this.explosionSize * 2.0F;
var4 = MathHelper.floor_double(this.explosionX - (double)var30 - 1.0D);
var5 = MathHelper.floor_double(this.explosionX + (double)var30 + 1.0D);
int var31 = MathHelper.floor_double(this.explosionY - (double)var30 - 1.0D);
int var7 = MathHelper.floor_double(this.explosionY + (double)var30 + 1.0D);
int var32 = MathHelper.floor_double(this.explosionZ - (double)var30 - 1.0D);
int var9 = MathHelper.floor_double(this.explosionZ + (double)var30 + 1.0D);
List var33 = this.worldObj.getEntitiesWithinAABBExcludingEntity(this.exploder, new AxisAlignedBB((double)var4, (double)var31, (double)var32, (double)var5, (double)var7, (double)var9));
Vec3 var11 = new Vec3(this.explosionX, this.explosionY, this.explosionZ);
for (int var34 = 0; var34 < var33.size(); ++var34)
{
Entity var13 = (Entity)var33.get(var34);
if (!var13.func_180427_aV())
{
double var35 = var13.getDistance(this.explosionX, this.explosionY, this.explosionZ) / (double)var30;
if (var35 <= 1.0D)
{
double var16 = var13.posX - this.explosionX;
double var18 = var13.posY + (double)var13.getEyeHeight() - this.explosionY;
double var20 = var13.posZ - this.explosionZ;
double var36 = (double)MathHelper.sqrt_double(var16 * var16 + var18 * var18 + var20 * var20);
if (var36 != 0.0D)
{
var16 /= var36;
var18 /= var36;
var20 /= var36;
double var37 = (double)this.worldObj.getBlockDensity(var11, var13.getEntityBoundingBox());
double var26 = (1.0D - var35) * var37;
var13.attackEntityFrom(DamageSource.setExplosionSource(this), (float)((int)((var26 * var26 + var26) / 2.0D * 8.0D * (double)var30 + 1.0D)));
double var28 = EnchantmentProtection.func_92092_a(var13, var26);
var13.motionX += var16 * var28;
var13.motionY += var18 * var28;
var13.motionZ += var20 * var28;
if (var13 instanceof EntityPlayer)
{
this.field_77288_k.put((EntityPlayer)var13, new Vec3(var16 * var26, var18 * var26, var20 * var26));
}
}
}
}
}
}
/**
* Does the second part of the explosion (sound, particles, drop spawn)
*/
public void doExplosionB(boolean p_77279_1_)
{
this.worldObj.playSoundEffect(this.explosionX, this.explosionY, this.explosionZ, "random.explode", 4.0F, (1.0F + (this.worldObj.rand.nextFloat() - this.worldObj.rand.nextFloat()) * 0.2F) * 0.7F);
if (this.explosionSize >= 2.0F && this.isSmoking)
{
this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_HUGE, this.explosionX, this.explosionY, this.explosionZ, 1.0D, 0.0D, 0.0D, new int[0]);
}
else
{
this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_LARGE, this.explosionX, this.explosionY, this.explosionZ, 1.0D, 0.0D, 0.0D, new int[0]);
}
Iterator var2;
BlockPos var3;
if (this.isSmoking)
{
var2 = this.affectedBlockPositions.iterator();
while (var2.hasNext())
{
var3 = (BlockPos)var2.next();
Block var4 = this.worldObj.getBlockState(var3).getBlock();
if (p_77279_1_)
{
double var5 = (double)((float)var3.getX() + this.worldObj.rand.nextFloat());
double var7 = (double)((float)var3.getY() + this.worldObj.rand.nextFloat());
double var9 = (double)((float)var3.getZ() + this.worldObj.rand.nextFloat());
double var11 = var5 - this.explosionX;
double var13 = var7 - this.explosionY;
double var15 = var9 - this.explosionZ;
double var17 = (double)MathHelper.sqrt_double(var11 * var11 + var13 * var13 + var15 * var15);
var11 /= var17;
var13 /= var17;
var15 /= var17;
double var19 = 0.5D / (var17 / (double)this.explosionSize + 0.1D);
var19 *= (double)(this.worldObj.rand.nextFloat() * this.worldObj.rand.nextFloat() + 0.3F);
var11 *= var19;
var13 *= var19;
var15 *= var19;
this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_NORMAL, (var5 + this.explosionX * 1.0D) / 2.0D, (var7 + this.explosionY * 1.0D) / 2.0D, (var9 + this.explosionZ * 1.0D) / 2.0D, var11, var13, var15, new int[0]);
this.worldObj.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, var5, var7, var9, var11, var13, var15, new int[0]);
}
if (var4.getMaterial() != Material.air)
{
if (var4.canDropFromExplosion(this))
{
var4.dropBlockAsItemWithChance(this.worldObj, var3, this.worldObj.getBlockState(var3), 1.0F / this.explosionSize, 0);
}
this.worldObj.setBlockState(var3, Blocks.air.getDefaultState(), 3);
var4.onBlockDestroyedByExplosion(this.worldObj, var3, this);
}
}
}
if (this.isFlaming)
{
var2 = this.affectedBlockPositions.iterator();
while (var2.hasNext())
{
var3 = (BlockPos)var2.next();
if (this.worldObj.getBlockState(var3).getBlock().getMaterial() == Material.air && this.worldObj.getBlockState(var3.offsetDown()).getBlock().isFullBlock() && this.explosionRNG.nextInt(3) == 0)
{
this.worldObj.setBlockState(var3, Blocks.fire.getDefaultState());
}
}
}
}
public Map func_77277_b()
{
return this.field_77288_k;
}
/**
* Returns either the entity that placed the explosive block, the entity that caused the explosion or null.
*/
public EntityLivingBase getExplosivePlacedBy()
{
return this.exploder == null ? null : (this.exploder instanceof EntityTNTPrimed ? ((EntityTNTPrimed)this.exploder).getTntPlacedBy() : (this.exploder instanceof EntityLivingBase ? (EntityLivingBase)this.exploder : null));
}
public void func_180342_d()
{
this.affectedBlockPositions.clear();
}
public List func_180343_e()
{
return this.affectedBlockPositions;
}
}