package net.minecraft.world;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.EnumCreatureType;
import net.minecraft.entity.monster.EntitySkeleton;
import net.minecraft.entity.monster.EntitySpider;
import net.minecraft.entity.monster.EntityZombie;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.ChunkCoordinates;
import net.minecraft.util.MathHelper;
import net.minecraft.util.WeightedRandom;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.biome.SpawnListEntry;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.Event.Result;
import net.minecraftforge.event.ForgeEventFactory;
import net.minecraftforge.event.entity.living.LivingSpecialSpawnEvent;
public final class SpawnerAnimals
{
/** The 17x17 area around the player where mobs can spawn */
private static HashMap eligibleChunksForSpawning = new HashMap();
/** An array of entity classes that spawn at night. */
protected static final Class[] nightSpawnEntities = new Class[] {EntitySpider.class, EntityZombie.class, EntitySkeleton.class};
/**
* Given a chunk, find a random position in it.
*/
protected static ChunkPosition getRandomSpawningPointInChunk(World par0World, int par1, int par2)
{
Chunk var3 = par0World.getChunkFromChunkCoords(par1, par2);
int var4 = par1 * 16 + par0World.rand.nextInt(16);
int var5 = par2 * 16 + par0World.rand.nextInt(16);
int var6 = par0World.rand.nextInt(var3 == null ? par0World.getActualHeight() : var3.getTopFilledSegment() + 16 - 1);
return new ChunkPosition(var4, var6, var5);
}
/**
* adds all chunks within the spawn radius of the players to eligibleChunksForSpawning. pars: the world,
* hostileCreatures, passiveCreatures. returns number of eligible chunks.
*/
public static final int findChunksForSpawning(WorldServer par0WorldServer, boolean par1, boolean par2, boolean par3)
{
if (!par1 && !par2)
{
return 0;
}
else
{
eligibleChunksForSpawning.clear();
int var4;
int var7;
for (var4 = 0; var4 < par0WorldServer.playerEntities.size(); ++var4)
{
EntityPlayer var5 = (EntityPlayer)par0WorldServer.playerEntities.get(var4);
int var6 = MathHelper.floor_double(var5.posX / 16.0D);
var7 = MathHelper.floor_double(var5.posZ / 16.0D);
byte var8 = 8;
for (int var9 = -var8; var9 <= var8; ++var9)
{
for (int var10 = -var8; var10 <= var8; ++var10)
{
boolean var11 = var9 == -var8 || var9 == var8 || var10 == -var8 || var10 == var8;
ChunkCoordIntPair var12 = new ChunkCoordIntPair(var9 + var6, var10 + var7);
if (!var11)
{
eligibleChunksForSpawning.put(var12, Boolean.valueOf(false));
}
else if (!eligibleChunksForSpawning.containsKey(var12))
{
eligibleChunksForSpawning.put(var12, Boolean.valueOf(true));
}
}
}
}
var4 = 0;
ChunkCoordinates var32 = par0WorldServer.getSpawnPoint();
EnumCreatureType[] var33 = EnumCreatureType.values();
var7 = var33.length;
for (int var34 = 0; var34 < var7; ++var34)
{
EnumCreatureType var35 = var33[var34];
if ((!var35.getPeacefulCreature() || par2) && (var35.getPeacefulCreature() || par1) && (!var35.getAnimal() || par3) && par0WorldServer.countEntities(var35.getCreatureClass()) <= var35.getMaxNumberOfCreature() * eligibleChunksForSpawning.size() / 256)
{
Iterator var37 = eligibleChunksForSpawning.keySet().iterator();
ArrayList<ChunkCoordIntPair> tmp = new ArrayList(eligibleChunksForSpawning.keySet());
Collections.shuffle(tmp);
var37 = tmp.iterator();
label110:
while (var37.hasNext())
{
ChunkCoordIntPair var36 = (ChunkCoordIntPair)var37.next();
if (!((Boolean)eligibleChunksForSpawning.get(var36)).booleanValue())
{
ChunkPosition var38 = getRandomSpawningPointInChunk(par0WorldServer, var36.chunkXPos, var36.chunkZPos);
int var13 = var38.x;
int var14 = var38.y;
int var15 = var38.z;
if (!par0WorldServer.isBlockNormalCube(var13, var14, var15) && par0WorldServer.getBlockMaterial(var13, var14, var15) == var35.getCreatureMaterial())
{
int var16 = 0;
int var17 = 0;
while (var17 < 3)
{
int var18 = var13;
int var19 = var14;
int var20 = var15;
byte var21 = 6;
SpawnListEntry var22 = null;
int var23 = 0;
while (true)
{
if (var23 < 4)
{
label103:
{
var18 += par0WorldServer.rand.nextInt(var21) - par0WorldServer.rand.nextInt(var21);
var19 += par0WorldServer.rand.nextInt(1) - par0WorldServer.rand.nextInt(1);
var20 += par0WorldServer.rand.nextInt(var21) - par0WorldServer.rand.nextInt(var21);
if (canCreatureTypeSpawnAtLocation(var35, par0WorldServer, var18, var19, var20))
{
float var24 = (float)var18 + 0.5F;
float var25 = (float)var19;
float var26 = (float)var20 + 0.5F;
if (par0WorldServer.getClosestPlayer((double)var24, (double)var25, (double)var26, 24.0D) == null)
{
float var27 = var24 - (float)var32.posX;
float var28 = var25 - (float)var32.posY;
float var29 = var26 - (float)var32.posZ;
float var30 = var27 * var27 + var28 * var28 + var29 * var29;
if (var30 >= 576.0F)
{
if (var22 == null)
{
var22 = par0WorldServer.spawnRandomCreature(var35, var18, var19, var20);
if (var22 == null)
{
break label103;
}
}
EntityLiving var39;
try
{
var39 = (EntityLiving)var22.entityClass.getConstructor(new Class[] {World.class}).newInstance(new Object[] {par0WorldServer});
}
catch (Exception var31)
{
var31.printStackTrace();
return var4;
}
var39.setLocationAndAngles((double)var24, (double)var25, (double)var26, par0WorldServer.rand.nextFloat() * 360.0F, 0.0F);
Result canSpawn = ForgeEventFactory.canEntitySpawn(var39, par0WorldServer, var24, var25, var26);
if (canSpawn == Result.ALLOW || (canSpawn == Result.DEFAULT && var39.getCanSpawnHere()))
{
++var16;
par0WorldServer.spawnEntityInWorld(var39);
creatureSpecificInit(var39, par0WorldServer, var24, var25, var26);
if (var16 >= var39.getMaxSpawnedInChunk())
{
continue label110;
}
}
var4 += var16;
}
}
}
++var23;
continue;
}
}
++var17;
break;
}
}
}
}
}
}
}
return var4;
}
}
/**
* Returns whether or not the specified creature type can spawn at the specified location.
*/
public static boolean canCreatureTypeSpawnAtLocation(EnumCreatureType par0EnumCreatureType, World par1World, int par2, int par3, int par4)
{
if (par0EnumCreatureType.getCreatureMaterial() == Material.water)
{
return par1World.getBlockMaterial(par2, par3, par4).isLiquid() && par1World.getBlockMaterial(par2, par3 - 1, par4).isLiquid() && !par1World.isBlockNormalCube(par2, par3 + 1, par4);
}
else if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4))
{
return false;
}
else
{
int var5 = par1World.getBlockId(par2, par3 - 1, par4);
boolean spawnBlock = (Block.blocksList[var5] != null && Block.blocksList[var5].canCreatureSpawn(par0EnumCreatureType, par1World, par2, par3 - 1, par4));
return spawnBlock && var5 != Block.bedrock.blockID && !par1World.isBlockNormalCube(par2, par3, par4) && !par1World.getBlockMaterial(par2, par3, par4).isLiquid() && !par1World.isBlockNormalCube(par2, par3 + 1, par4);
}
}
/**
* determines if a skeleton spawns on a spider, and if a sheep is a different color
*/
private static void creatureSpecificInit(EntityLiving par0EntityLiving, World par1World, float par2, float par3, float par4)
{
if (ForgeEventFactory.doSpecialSpawn(par0EntityLiving, par1World, par2, par3, par4))
{
return;
}
par0EntityLiving.initCreature();
}
/**
* Called during chunk generation to spawn initial creatures.
*/
public static void performWorldGenSpawning(World par0World, BiomeGenBase par1BiomeGenBase, int par2, int par3, int par4, int par5, Random par6Random)
{
List var7 = par1BiomeGenBase.getSpawnableList(EnumCreatureType.creature);
if (!var7.isEmpty())
{
while (par6Random.nextFloat() < par1BiomeGenBase.getSpawningChance())
{
SpawnListEntry var8 = (SpawnListEntry)WeightedRandom.getRandomItem(par0World.rand, var7);
int var9 = var8.minGroupCount + par6Random.nextInt(1 + var8.maxGroupCount - var8.minGroupCount);
int var10 = par2 + par6Random.nextInt(par4);
int var11 = par3 + par6Random.nextInt(par5);
int var12 = var10;
int var13 = var11;
for (int var14 = 0; var14 < var9; ++var14)
{
boolean var15 = false;
for (int var16 = 0; !var15 && var16 < 4; ++var16)
{
int var17 = par0World.getTopSolidOrLiquidBlock(var10, var11);
if (canCreatureTypeSpawnAtLocation(EnumCreatureType.creature, par0World, var10, var17, var11))
{
float var18 = (float)var10 + 0.5F;
float var19 = (float)var17;
float var20 = (float)var11 + 0.5F;
EntityLiving var21;
try
{
var21 = (EntityLiving)var8.entityClass.getConstructor(new Class[] {World.class}).newInstance(new Object[] {par0World});
}
catch (Exception var23)
{
var23.printStackTrace();
continue;
}
var21.setLocationAndAngles((double)var18, (double)var19, (double)var20, par6Random.nextFloat() * 360.0F, 0.0F);
par0World.spawnEntityInWorld(var21);
creatureSpecificInit(var21, par0World, var18, var19, var20);
var15 = true;
}
var10 += par6Random.nextInt(5) - par6Random.nextInt(5);
for (var11 += par6Random.nextInt(5) - par6Random.nextInt(5); var10 < par2 || var10 >= par2 + par4 || var11 < par3 || var11 >= par3 + par4; var11 = var13 + par6Random.nextInt(5) - par6Random.nextInt(5))
{
var10 = var12 + par6Random.nextInt(5) - par6Random.nextInt(5);
}
}
}
}
}
}
}