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package net.minecraft.server;
import java.util.ArrayList;
import java.util.List;
public class PlayerManager {
public List managedPlayers = new ArrayList();
private LongHashMap b = new LongHashMap();
private List c = new ArrayList();
private MinecraftServer server;
private int e;
private int f;
private final int[][] g = new int[][] { { 1, 0}, { 0, 1}, { -1, 0}, { 0, -1}};
public PlayerManager(MinecraftServer minecraftserver, int i, int j) {
if (j > 15) {
throw new IllegalArgumentException("Too big view radius!");
} else if (j < 3) {
throw new IllegalArgumentException("Too small view radius!");
} else {
this.f = j;
this.server = minecraftserver;
this.e = i;
}
}
public WorldServer a() {
return this.server.getWorldServer(this.e);
}
public void flush() {
for (int i = 0; i < this.c.size(); ++i) {
((PlayerInstance) this.c.get(i)).a();
}
this.c.clear();
if (this.managedPlayers.isEmpty()) {
WorldServer worldserver = this.server.getWorldServer(this.e);
WorldProvider worldprovider = worldserver.worldProvider;
if (!worldprovider.c()) {
worldserver.chunkProviderServer.c();
}
}
}
private PlayerInstance a(int i, int j, boolean flag) {
long k = (long) i + 2147483647L | (long) j + 2147483647L << 32;
PlayerInstance playerinstance = (PlayerInstance) this.b.getEntry(k);
if (playerinstance == null && flag) {
playerinstance = new PlayerInstance(this, i, j);
this.b.put(k, playerinstance);
}
return playerinstance;
}
public void flagDirty(int i, int j, int k) {
int l = i >> 4;
int i1 = k >> 4;
PlayerInstance playerinstance = this.a(l, i1, false);
if (playerinstance != null) {
playerinstance.a(i & 15, j, k & 15);
}
}
public void addPlayer(EntityPlayer entityplayer) {
int i = (int) entityplayer.locX >> 4;
int j = (int) entityplayer.locZ >> 4;
entityplayer.d = entityplayer.locX;
entityplayer.e = entityplayer.locZ;
int k = 0;
int l = this.f;
int i1 = 0;
int j1 = 0;
this.a(i, j, true).a(entityplayer);
int k1;
for (k1 = 1; k1 <= l * 2; ++k1) {
for (int l1 = 0; l1 < 2; ++l1) {
int[] aint = this.g[k++ % 4];
for (int i2 = 0; i2 < k1; ++i2) {
i1 += aint[0];
j1 += aint[1];
this.a(i + i1, j + j1, true).a(entityplayer);
}
}
}
k %= 4;
for (k1 = 0; k1 < l * 2; ++k1) {
i1 += this.g[k][0];
j1 += this.g[k][1];
this.a(i + i1, j + j1, true).a(entityplayer);
}
this.managedPlayers.add(entityplayer);
}
public void removePlayer(EntityPlayer entityplayer) {
int i = (int) entityplayer.d >> 4;
int j = (int) entityplayer.e >> 4;
for (int k = i - this.f; k <= i + this.f; ++k) {
for (int l = j - this.f; l <= j + this.f; ++l) {
PlayerInstance playerinstance = this.a(k, l, false);
if (playerinstance != null) {
playerinstance.b(entityplayer);
}
}
}
this.managedPlayers.remove(entityplayer);
}
private boolean a(int i, int j, int k, int l) {
int i1 = i - k;
int j1 = j - l;
return i1 >= -this.f && i1 <= this.f ? j1 >= -this.f && j1 <= this.f : false;
}
public void movePlayer(EntityPlayer entityplayer) {
int i = (int) entityplayer.locX >> 4;
int j = (int) entityplayer.locZ >> 4;
double d0 = entityplayer.d - entityplayer.locX;
double d1 = entityplayer.e - entityplayer.locZ;
double d2 = d0 * d0 + d1 * d1;
if (d2 >= 64.0D) {
int k = (int) entityplayer.d >> 4;
int l = (int) entityplayer.e >> 4;
int i1 = i - k;
int j1 = j - l;
if (i1 != 0 || j1 != 0) {
for (int k1 = i - this.f; k1 <= i + this.f; ++k1) {
for (int l1 = j - this.f; l1 <= j + this.f; ++l1) {
if (!this.a(k1, l1, k, l)) {
this.a(k1, l1, true).a(entityplayer);
}
if (!this.a(k1 - i1, l1 - j1, i, j)) {
PlayerInstance playerinstance = this.a(k1 - i1, l1 - j1, false);
if (playerinstance != null) {
playerinstance.b(entityplayer);
}
}
}
}
entityplayer.d = entityplayer.locX;
entityplayer.e = entityplayer.locZ;
// CraftBukkit start - send nearest chunks first
if (i1 > 1 || i1 < -1 || j1 > 1 || j1 < -1) {
final int x = i;
final int z = j;
List<ChunkCoordIntPair> chunksToSend = entityplayer.chunkCoordIntPairQueue;
java.util.Collections.sort(chunksToSend, new java.util.Comparator<ChunkCoordIntPair>() {
public int compare(ChunkCoordIntPair a, ChunkCoordIntPair b) {
return Math.max(Math.abs(a.x - x), Math.abs(a.z - z)) - Math.max(Math.abs(b.x - x), Math.abs(b.z - z));
}
});
}
// CraftBukkit end
}
}
}
public int getFurthestViewableBlock() {
return this.f * 16 - 16;
}
static LongHashMap a(PlayerManager playermanager) {
return playermanager.b;
}
static List b(PlayerManager playermanager) {
return playermanager.c;
}
}
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