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package net.minecraft.server;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
public class EntityTrackerEntry {
public Entity a;
public int b;
public int c;
public int d;
public int e;
public int f;
public int g;
public int h;
public double i;
public double j;
public double k;
public int l = 0;
private double o;
private double p;
private double q;
private boolean r = false;
private boolean s;
public boolean m = false;
public Set n = new HashSet();
public EntityTrackerEntry(Entity entity, int i, int j, boolean flag) {
this.a = entity;
this.b = i;
this.c = j;
this.s = flag;
this.d = MathHelper.b(entity.locX * 32.0D);
this.e = MathHelper.b(entity.locY * 32.0D);
this.f = MathHelper.b(entity.locZ * 32.0D);
this.g = MathHelper.d(entity.yaw * 256.0F / 360.0F);
this.h = MathHelper.d(entity.pitch * 256.0F / 360.0F);
}
public boolean equals(Object object) {
return object instanceof EntityTrackerEntry ? ((EntityTrackerEntry) object).a.id == this.a.id : false;
}
public int hashCode() {
return this.a.id;
}
public void a(List list) {
this.m = false;
if (!this.r || this.a.d(this.o, this.p, this.q) > 16.0D) {
this.o = this.a.locX;
this.p = this.a.locY;
this.q = this.a.locZ;
this.r = true;
this.m = true;
this.b(list);
}
if (++this.l % this.c == 0) {
int i = MathHelper.b(this.a.locX * 32.0D);
int j = MathHelper.b(this.a.locY * 32.0D);
int k = MathHelper.b(this.a.locZ * 32.0D);
int l = MathHelper.d(this.a.yaw * 256.0F / 360.0F);
int i1 = MathHelper.d(this.a.pitch * 256.0F / 360.0F);
int j1 = i - this.d;
int k1 = j - this.e;
int l1 = k - this.f;
Object object = null;
boolean flag = Math.abs(i) >= 8 || Math.abs(j) >= 8 || Math.abs(k) >= 8;
boolean flag1 = Math.abs(l - this.g) >= 8 || Math.abs(i1 - this.h) >= 8;
if (j1 >= -128 && j1 < 128 && k1 >= -128 && k1 < 128 && l1 >= -128 && l1 < 128) {
if (flag && flag1) {
object = new Packet33RelEntityMoveLook(this.a.id, (byte) j1, (byte) k1, (byte) l1, (byte) l, (byte) i1);
} else if (flag) {
object = new Packet31RelEntityMove(this.a.id, (byte) j1, (byte) k1, (byte) l1);
} else if (flag1) {
object = new Packet32EntityLook(this.a.id, (byte) l, (byte) i1);
}
} else {
object = new Packet34EntityTeleport(this.a.id, i, j, k, (byte) l, (byte) i1);
}
if (this.s) {
double d0 = this.a.motX - this.i;
double d1 = this.a.motY - this.j;
double d2 = this.a.motZ - this.k;
double d3 = 0.02D;
double d4 = d0 * d0 + d1 * d1 + d2 * d2;
if (d4 > d3 * d3 || d4 > 0.0D && this.a.motX == 0.0D && this.a.motY == 0.0D && this.a.motZ == 0.0D) {
this.i = this.a.motX;
this.j = this.a.motY;
this.k = this.a.motZ;
this.a((Packet) (new Packet28EntityVelocity(this.a.id, this.i, this.j, this.k)));
}
}
if (object != null) {
this.a((Packet) object);
}
DataWatcher datawatcher = this.a.T();
if (datawatcher.a()) {
this.b((Packet) (new Packet40EntityMetadata(this.a.id, datawatcher)));
}
if (flag) {
this.d = i;
this.e = j;
this.f = k;
}
if (flag1) {
this.g = l;
this.h = i1;
}
}
if (this.a.aZ) {
this.b((Packet) (new Packet28EntityVelocity(this.a)));
this.a.aZ = false;
}
}
public void a(Packet packet) {
Iterator iterator = this.n.iterator();
while (iterator.hasNext()) {
EntityPlayer entityplayer = (EntityPlayer) iterator.next();
entityplayer.a.b(packet);
}
}
public void b(Packet packet) {
this.a(packet);
if (this.a instanceof EntityPlayer) {
((EntityPlayer) this.a).a.b(packet);
}
}
public void a() {
this.a((Packet) (new Packet29DestroyEntity(this.a.id)));
}
public void a(EntityPlayer entityplayer) {
if (this.n.contains(entityplayer)) {
this.n.remove(entityplayer);
}
}
public void b(EntityPlayer entityplayer) {
if (entityplayer != this.a) {
double d0 = entityplayer.locX - (double) (this.d / 32);
double d1 = entityplayer.locZ - (double) (this.f / 32);
if (d0 >= (double) (-this.b) && d0 <= (double) this.b && d1 >= (double) (-this.b) && d1 <= (double) this.b) {
// CraftBukkit
if ((!this.n.contains(entityplayer)) && (this.a.world == entityplayer.world)) {
this.n.add(entityplayer);
entityplayer.a.b(this.b());
if (this.s) {
entityplayer.a.b((Packet) (new Packet28EntityVelocity(this.a.id, this.a.motX, this.a.motY, this.a.motZ)));
}
ItemStack[] aitemstack = this.a.k_();
if (aitemstack != null) {
for (int i = 0; i < aitemstack.length; ++i) {
entityplayer.a.b((Packet) (new Packet5EntityEquipment(this.a.id, i, aitemstack[i])));
}
}
}
} else if (this.n.contains(entityplayer)) {
this.n.remove(entityplayer);
entityplayer.a.b((Packet) (new Packet29DestroyEntity(this.a.id)));
}
}
}
public void b(List list) {
for (int i = 0; i < list.size(); ++i) {
this.b((EntityPlayer) list.get(i));
}
}
private Packet b() {
if (this.a instanceof EntityItem) {
EntityItem entityitem = (EntityItem) this.a;
Packet21PickupSpawn packet21pickupspawn = new Packet21PickupSpawn(entityitem);
entityitem.locX = (double) packet21pickupspawn.b / 32.0D;
entityitem.locY = (double) packet21pickupspawn.c / 32.0D;
entityitem.locZ = (double) packet21pickupspawn.d / 32.0D;
return packet21pickupspawn;
} else if (this.a instanceof EntityPlayer) {
return new Packet20NamedEntitySpawn((EntityHuman) this.a);
} else {
if (this.a instanceof EntityMinecart) {
EntityMinecart entityminecart = (EntityMinecart) this.a;
if (entityminecart.d == 0) {
return new Packet23VehicleSpawn(this.a, 10);
}
if (entityminecart.d == 1) {
return new Packet23VehicleSpawn(this.a, 11);
}
if (entityminecart.d == 2) {
return new Packet23VehicleSpawn(this.a, 12);
}
}
if (this.a instanceof EntityBoat) {
return new Packet23VehicleSpawn(this.a, 1);
} else if (this.a instanceof IAnimal) {
return new Packet24MobSpawn((EntityLiving) this.a);
} else if (this.a instanceof EntityFish) {
return new Packet23VehicleSpawn(this.a, 90);
} else if (this.a instanceof EntityArrow) {
return new Packet23VehicleSpawn(this.a, 60);
} else if (this.a instanceof EntitySnowball) {
return new Packet23VehicleSpawn(this.a, 61);
} else if (this.a instanceof EntityEgg) {
return new Packet23VehicleSpawn(this.a, 62);
} else if (this.a instanceof EntityTNTPrimed) {
return new Packet23VehicleSpawn(this.a, 50);
} else {
if (this.a instanceof EntityFallingSand) {
EntityFallingSand entityfallingsand = (EntityFallingSand) this.a;
if (entityfallingsand.a == Block.SAND.id) {
return new Packet23VehicleSpawn(this.a, 70);
}
if (entityfallingsand.a == Block.GRAVEL.id) {
return new Packet23VehicleSpawn(this.a, 71);
}
}
if (this.a instanceof EntityPainting) {
return new Packet25EntityPainting((EntityPainting) this.a);
} else {
throw new IllegalArgumentException("Don\'t know how to add " + this.a.getClass() + "!");
}
}
}
}
public void c(EntityPlayer entityplayer) {
if (this.n.contains(entityplayer)) {
this.n.remove(entityplayer);
entityplayer.a.b((Packet) (new Packet29DestroyEntity(this.a.id)));
}
}
}
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