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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 tracker;
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 isMoving;
private int t = 0;
public boolean m = false;
public Set trackedPlayers = new HashSet();
public EntityTrackerEntry(Entity entity, int i, int j, boolean flag) {
this.tracker = entity;
this.b = i;
this.c = j;
this.isMoving = flag;
this.d = MathHelper.floor(entity.locX * 32.0D);
this.e = MathHelper.floor(entity.locY * 32.0D);
this.f = MathHelper.floor(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).tracker.id == this.tracker.id : false;
}
public int hashCode() {
return this.tracker.id;
}
public void track(List list) {
this.m = false;
if (!this.r || this.tracker.d(this.o, this.p, this.q) > 16.0D) {
this.o = this.tracker.locX;
this.p = this.tracker.locY;
this.q = this.tracker.locZ;
this.r = true;
this.m = true;
this.scanPlayers(list);
}
++this.t;
if (++this.l % this.c == 0) {
int i = MathHelper.floor(this.tracker.locX * 32.0D);
int j = MathHelper.floor(this.tracker.locY * 32.0D);
int k = MathHelper.floor(this.tracker.locZ * 32.0D);
int l = MathHelper.d(this.tracker.yaw * 256.0F / 360.0F);
int i1 = MathHelper.d(this.tracker.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 && this.t <= 400) {
if (flag && flag1) {
object = new Packet33RelEntityMoveLook(this.tracker.id, (byte) j1, (byte) k1, (byte) l1, (byte) l, (byte) i1);
} else if (flag) {
object = new Packet31RelEntityMove(this.tracker.id, (byte) j1, (byte) k1, (byte) l1);
} else if (flag1) {
object = new Packet32EntityLook(this.tracker.id, (byte) l, (byte) i1);
}
} else {
this.t = 0;
this.tracker.locX = (double) i / 32.0D;
this.tracker.locY = (double) j / 32.0D;
this.tracker.locZ = (double) k / 32.0D;
object = new Packet34EntityTeleport(this.tracker.id, i, j, k, (byte) l, (byte) i1);
}
if (this.isMoving) {
double d0 = this.tracker.motX - this.i;
double d1 = this.tracker.motY - this.j;
double d2 = this.tracker.motZ - this.k;
double d3 = 0.02D;
double d4 = d0 * d0 + d1 * d1 + d2 * d2;
if (d4 > d3 * d3 || d4 > 0.0D && this.tracker.motX == 0.0D && this.tracker.motY == 0.0D && this.tracker.motZ == 0.0D) {
this.i = this.tracker.motX;
this.j = this.tracker.motY;
this.k = this.tracker.motZ;
this.a((Packet) (new Packet28EntityVelocity(this.tracker.id, this.i, this.j, this.k)));
}
}
if (object != null) {
this.a((Packet) object);
}
DataWatcher datawatcher = this.tracker.Z();
if (datawatcher.a()) {
this.b((Packet) (new Packet40EntityMetadata(this.tracker.id, datawatcher)));
}
if (flag) {
this.d = i;
this.e = j;
this.f = k;
}
if (flag1) {
this.g = l;
this.h = i1;
}
}
if (this.tracker.velocityChanged) {
this.b((Packet) (new Packet28EntityVelocity(this.tracker)));
this.tracker.velocityChanged = false;
}
}
public void a(Packet packet) {
Iterator iterator = this.trackedPlayers.iterator();
while (iterator.hasNext()) {
EntityPlayer entityplayer = (EntityPlayer) iterator.next();
entityplayer.netServerHandler.sendPacket(packet);
}
}
public void b(Packet packet) {
this.a(packet);
if (this.tracker instanceof EntityPlayer) {
((EntityPlayer) this.tracker).netServerHandler.sendPacket(packet);
}
}
public void a() {
this.a((Packet) (new Packet29DestroyEntity(this.tracker.id)));
}
public void a(EntityPlayer entityplayer) {
if (this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.remove(entityplayer);
}
}
public void b(EntityPlayer entityplayer) {
if (entityplayer != this.tracker) {
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) {
if (!this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.add(entityplayer);
entityplayer.netServerHandler.sendPacket(this.b());
if (this.isMoving) {
entityplayer.netServerHandler.sendPacket(new Packet28EntityVelocity(this.tracker.id, this.tracker.motX, this.tracker.motY, this.tracker.motZ));
}
ItemStack[] aitemstack = this.tracker.getEquipment();
if (aitemstack != null) {
for (int i = 0; i < aitemstack.length; ++i) {
entityplayer.netServerHandler.sendPacket(new Packet5EntityEquipment(this.tracker.id, i, aitemstack[i]));
}
}
if (this.tracker instanceof EntityHuman) {
EntityHuman entityhuman = (EntityHuman) this.tracker;
if (entityhuman.isSleeping()) {
entityplayer.netServerHandler.sendPacket(new Packet17(this.tracker, 0, MathHelper.floor(this.tracker.locX), MathHelper.floor(this.tracker.locY), MathHelper.floor(this.tracker.locZ)));
}
}
}
} else if (this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.remove(entityplayer);
entityplayer.netServerHandler.sendPacket(new Packet29DestroyEntity(this.tracker.id));
}
}
}
public void scanPlayers(List list) {
for (int i = 0; i < list.size(); ++i) {
this.b((EntityPlayer) list.get(i));
}
}
private Packet b() {
if (this.tracker instanceof EntityItem) {
EntityItem entityitem = (EntityItem) this.tracker;
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.tracker instanceof EntityPlayer) {
// CraftBukkit start - limit name length to 16 characters
if (((EntityHuman) this.tracker).name.length() > 16) {
((EntityHuman) this.tracker).name = ((EntityHuman) this.tracker).name.substring(0, 16);
}
// CraftBukkit end
return new Packet20NamedEntitySpawn((EntityHuman) this.tracker);
} else {
if (this.tracker instanceof EntityMinecart) {
EntityMinecart entityminecart = (EntityMinecart) this.tracker;
if (entityminecart.type == 0) {
return new Packet23VehicleSpawn(this.tracker, 10);
}
if (entityminecart.type == 1) {
return new Packet23VehicleSpawn(this.tracker, 11);
}
if (entityminecart.type == 2) {
return new Packet23VehicleSpawn(this.tracker, 12);
}
}
if (this.tracker instanceof EntityBoat) {
return new Packet23VehicleSpawn(this.tracker, 1);
} else if (this.tracker instanceof IAnimal) {
return new Packet24MobSpawn((EntityLiving) this.tracker);
} else if (this.tracker instanceof EntityFish) {
return new Packet23VehicleSpawn(this.tracker, 90);
} else if (this.tracker instanceof EntityArrow) {
EntityLiving entityliving = ((EntityArrow) this.tracker).shooter;
return new Packet23VehicleSpawn(this.tracker, 60, entityliving != null ? entityliving.id : this.tracker.id);
} else if (this.tracker instanceof EntitySnowball) {
return new Packet23VehicleSpawn(this.tracker, 61);
} else if (this.tracker instanceof EntityFireball) {
EntityFireball entityfireball = (EntityFireball) this.tracker;
// CraftBukkit start - added check for null shooter
int shooter = ((EntityFireball) this.tracker).shooter != null ? ((EntityFireball) this.tracker).shooter.id : 1;
Packet23VehicleSpawn packet23vehiclespawn = new Packet23VehicleSpawn(this.tracker, 63, shooter);
// CraftBukkit end
packet23vehiclespawn.e = (int) (entityfireball.c * 8000.0D);
packet23vehiclespawn.f = (int) (entityfireball.d * 8000.0D);
packet23vehiclespawn.g = (int) (entityfireball.e * 8000.0D);
return packet23vehiclespawn;
} else if (this.tracker instanceof EntityEgg) {
return new Packet23VehicleSpawn(this.tracker, 62);
} else if (this.tracker instanceof EntityTNTPrimed) {
return new Packet23VehicleSpawn(this.tracker, 50);
} else {
if (this.tracker instanceof EntityFallingSand) {
EntityFallingSand entityfallingsand = (EntityFallingSand) this.tracker;
if (entityfallingsand.a == Block.SAND.id) {
return new Packet23VehicleSpawn(this.tracker, 70);
}
if (entityfallingsand.a == Block.GRAVEL.id) {
return new Packet23VehicleSpawn(this.tracker, 71);
}
}
if (this.tracker instanceof EntityPainting) {
return new Packet25EntityPainting((EntityPainting) this.tracker);
} else {
throw new IllegalArgumentException("Don\'t know how to add " + this.tracker.getClass() + "!");
}
}
}
}
public void c(EntityPlayer entityplayer) {
if (this.trackedPlayers.contains(entityplayer)) {
this.trackedPlayers.remove(entityplayer);
entityplayer.netServerHandler.sendPacket(new Packet29DestroyEntity(this.tracker.id));
}
}
}
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