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package net.minecraft.server;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
// CraftBukkit
import org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason;
public final class SpawnerCreature {
private static HashMap b = new HashMap();
protected static final Class[] a = new Class[] { EntitySpider.class, EntityZombie.class, EntitySkeleton.class};
public SpawnerCreature() {}
protected static ChunkPosition a(World world, int i, int j) {
int k = i + world.random.nextInt(16);
int l = world.random.nextInt(world.height);
int i1 = j + world.random.nextInt(16);
return new ChunkPosition(k, l, i1);
}
public static final int spawnEntities(World world, boolean flag, boolean flag1) {
if (!flag && !flag1) {
return 0;
} else {
b.clear();
int i;
int j;
for (i = 0; i < world.players.size(); ++i) {
EntityHuman entityhuman = (EntityHuman) world.players.get(i);
int k = MathHelper.floor(entityhuman.locX / 16.0D);
j = MathHelper.floor(entityhuman.locZ / 16.0D);
byte b0 = 8;
for (int l = -b0; l <= b0; ++l) {
for (int i1 = -b0; i1 <= b0; ++i1) {
boolean flag2 = l == -b0 || l == b0 || i1 == -b0 || i1 == b0;
ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(l + k, i1 + j);
if (!flag2) {
b.put(chunkcoordintpair, Boolean.valueOf(false));
} else if (!b.containsKey(chunkcoordintpair)) {
b.put(chunkcoordintpair, Boolean.valueOf(true));
}
}
}
}
i = 0;
ChunkCoordinates chunkcoordinates = world.getSpawn();
EnumCreatureType[] aenumcreaturetype = EnumCreatureType.values();
j = aenumcreaturetype.length;
for (int j1 = 0; j1 < j; ++j1) {
EnumCreatureType enumcreaturetype = aenumcreaturetype[j1];
if ((!enumcreaturetype.d() || flag1) && (enumcreaturetype.d() || flag) && world.a(enumcreaturetype.a()) <= enumcreaturetype.b() * b.size() / 256) {
Iterator iterator = b.keySet().iterator();
label108:
while (iterator.hasNext()) {
ChunkCoordIntPair chunkcoordintpair1 = (ChunkCoordIntPair) iterator.next();
if (!((Boolean) b.get(chunkcoordintpair1)).booleanValue()) {
ChunkPosition chunkposition = a(world, chunkcoordintpair1.x * 16, chunkcoordintpair1.z * 16);
int k1 = chunkposition.x;
int l1 = chunkposition.y;
int i2 = chunkposition.z;
if (!world.e(k1, l1, i2) && world.getMaterial(k1, l1, i2) == enumcreaturetype.c()) {
int j2 = 0;
int k2 = 0;
while (k2 < 3) {
int l2 = k1;
int i3 = l1;
int j3 = i2;
byte b1 = 6;
BiomeMeta biomemeta = null;
int k3 = 0;
while (true) {
if (k3 < 4) {
label101: {
l2 += world.random.nextInt(b1) - world.random.nextInt(b1);
i3 += world.random.nextInt(1) - world.random.nextInt(1);
j3 += world.random.nextInt(b1) - world.random.nextInt(b1);
if (a(enumcreaturetype, world, l2, i3, j3)) {
float f = (float) l2 + 0.5F;
float f1 = (float) i3;
float f2 = (float) j3 + 0.5F;
if (world.a((double) f, (double) f1, (double) f2, 24.0D) == null) {
float f3 = f - (float) chunkcoordinates.x;
float f4 = f1 - (float) chunkcoordinates.y;
float f5 = f2 - (float) chunkcoordinates.z;
float f6 = f3 * f3 + f4 * f4 + f5 * f5;
if (f6 >= 576.0F) {
if (biomemeta == null) {
biomemeta = world.a(enumcreaturetype, l2, i3, j3);
if (biomemeta == null) {
break label101;
}
}
EntityLiving entityliving;
try {
entityliving = (EntityLiving) biomemeta.a.getConstructor(new Class[] { World.class}).newInstance(new Object[] { world});
} catch (Exception exception) {
exception.printStackTrace();
return i;
}
entityliving.setPositionRotation((double) f, (double) f1, (double) f2, world.random.nextFloat() * 360.0F, 0.0F);
if (entityliving.g()) {
++j2;
// CraftBukkit - added a reason for spawning this creature
world.addEntity(entityliving, SpawnReason.NATURAL);
a(entityliving, world, f, f1, f2);
if (j2 >= entityliving.p()) {
continue label108;
}
}
i += j2;
}
}
}
++k3;
continue;
}
}
++k2;
break;
}
}
}
}
}
}
}
return i;
}
}
private static boolean a(EnumCreatureType enumcreaturetype, World world, int i, int j, int k) {
return enumcreaturetype.c() == Material.WATER ? world.getMaterial(i, j, k).isLiquid() && !world.e(i, j + 1, k) : world.e(i, j - 1, k) && !world.e(i, j, k) && !world.getMaterial(i, j, k).isLiquid() && !world.e(i, j + 1, k);
}
private static void a(EntityLiving entityliving, World world, float f, float f1, float f2) {
if (entityliving instanceof EntitySpider && world.random.nextInt(100) == 0) {
EntitySkeleton entityskeleton = new EntitySkeleton(world);
entityskeleton.setPositionRotation((double) f, (double) f1, (double) f2, entityliving.yaw, 0.0F);
// CraftBukkit - added a reason for spawning this creature
world.addEntity(entityskeleton, SpawnReason.NATURAL);
entityskeleton.mount(entityliving);
} else if (entityliving instanceof EntitySheep) {
((EntitySheep) entityliving).setColor(EntitySheep.a(world.random));
}
}
public static void a(World world, BiomeBase biomebase, int i, int j, int k, int l, Random random) {
List list = biomebase.a(EnumCreatureType.CREATURE);
if (!list.isEmpty()) {
while (random.nextFloat() < biomebase.d()) {
BiomeMeta biomemeta = (BiomeMeta) WeightedRandom.a(world.random, (Collection) list);
int i1 = biomemeta.b + random.nextInt(1 + biomemeta.c - biomemeta.b);
int j1 = i + random.nextInt(k);
int k1 = j + random.nextInt(l);
int l1 = j1;
int i2 = k1;
for (int j2 = 0; j2 < i1; ++j2) {
boolean flag = false;
for (int k2 = 0; !flag && k2 < 4; ++k2) {
int l2 = world.f(j1, k1);
if (a(EnumCreatureType.CREATURE, world, j1, l2, k1)) {
float f = (float) j1 + 0.5F;
float f1 = (float) l2;
float f2 = (float) k1 + 0.5F;
EntityLiving entityliving;
try {
entityliving = (EntityLiving) biomemeta.a.getConstructor(new Class[] { World.class}).newInstance(new Object[] { world});
} catch (Exception exception) {
exception.printStackTrace();
continue;
}
entityliving.setPositionRotation((double) f, (double) f1, (double) f2, random.nextFloat() * 360.0F, 0.0F);
// CraftBukkit - added a reason for spawning this creature
world.addEntity(entityliving, SpawnReason.NATURAL);
a(entityliving, world, f, f1, f2);
flag = true;
}
j1 += random.nextInt(5) - random.nextInt(5);
for (k1 += random.nextInt(5) - random.nextInt(5); j1 < i || j1 >= i + k || k1 < j || k1 >= j + k; k1 = i2 + random.nextInt(5) - random.nextInt(5)) {
j1 = l1 + random.nextInt(5) - random.nextInt(5);
}
}
}
}
}
}
}
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