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package net.minecraft.server;
import java.io.IOException;
import java.util.*;
// CraftBukkit start
import org.bukkit.craftbukkit.CraftChunk;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.event.Event.Type;
import org.bukkit.event.world.ChunkLoadEvent;
// CraftBukkit end
public class ChunkProviderServer implements IChunkProvider {
private Set a;
private Chunk b;
private IChunkProvider c;
private IChunkLoader d;
private Map e;
private List f;
private WorldServer g;
public ChunkProviderServer(WorldServer worldserver, IChunkLoader ichunkloader, IChunkProvider ichunkprovider) {
a = ((Set) (new HashSet()));
e = ((Map) (new HashMap()));
f = ((List) (new ArrayList()));
b = ((Chunk) (new EmptyChunk(((World) (worldserver)), new byte[32768], 0, 0)));
g = worldserver;
d = ichunkloader;
c = ichunkprovider;
}
public boolean a(int i, int j) {
ChunkCoordinates chunkcoordinates = new ChunkCoordinates(i, j);
return e.containsKey(((chunkcoordinates)));
}
public void c(int i, int j) {
int k = (i * 16 + 8) - g.m;
int l = (j * 16 + 8) - g.o;
char c1 = '\200';
if (k < -c1 || k > c1 || l < -c1 || l > c1) {
a.add(((new ChunkCoordinates(i, j))));
}
}
public Chunk d(int i, int j) {
ChunkCoordinates chunkcoordinates = new ChunkCoordinates(i, j);
a.remove(((new ChunkCoordinates(i, j))));
Chunk chunk = (Chunk) e.get(((chunkcoordinates)));
if (chunk == null) {
chunk = e(i, j);
if (chunk == null) {
if (c == null) {
chunk = b;
} else {
chunk = c.b(i, j);
}
}
e.put(((chunkcoordinates)), ((chunk)));
f.add(((chunk)));
if (chunk != null) {
chunk.c();
chunk.d();
}
// CraftBukkit start
CraftServer server = g.getServer();
if (server != null) {
/*
* If it's a new world, the first few chunks are generated inside
* the World constructor. We can't reliably alter that, so we have
* no way of creating a CraftWorld/CraftServer at that point.
*/
CraftWorld world = g.getWorld();
CraftChunk cchunk = world.updateChunk(i, j);
server.getPluginManager().callEvent(new ChunkLoadEvent(Type.CHUNK_LOADED, cchunk));
}
// CraftBukkit end
if (!chunk.n && a(i + 1, j + 1) && a(i, j + 1) && a(i + 1, j)) {
a(((IChunkProvider) (this)), i, j);
}
if (a(i - 1, j) && !b(i - 1, j).n && a(i - 1, j + 1) && a(i, j + 1) && a(i - 1, j)) {
a(((IChunkProvider) (this)), i - 1, j);
}
if (a(i, j - 1) && !b(i, j - 1).n && a(i + 1, j - 1) && a(i, j - 1) && a(i + 1, j)) {
a(((IChunkProvider) (this)), i, j - 1);
}
if (a(i - 1, j - 1) && !b(i - 1, j - 1).n && a(i - 1, j - 1) && a(i, j - 1) && a(i - 1, j)) {
a(((IChunkProvider) (this)), i - 1, j - 1);
}
}
return chunk;
}
public Chunk b(int i, int j) {
ChunkCoordinates chunkcoordinates = new ChunkCoordinates(i, j);
Chunk chunk = (Chunk) e.get(((chunkcoordinates)));
if (chunk == null) {
if (g.x) {
return d(i, j);
} else {
return b;
}
} else {
return chunk;
}
}
private Chunk e(int i, int j) {
if (d == null) {
return null;
}
try {
Chunk chunk = d.a(((World) (g)), i, j);
if (chunk != null) {
chunk.r = g.e;
}
return chunk;
} catch (Exception exception) {
exception.printStackTrace();
}
return null;
}
private void a(Chunk chunk) {
if (d == null) {
return;
}
try {
d.b(((World) (g)), chunk);
} catch (Exception exception) {
exception.printStackTrace();
}
}
private void b(Chunk chunk) {
if (d == null) {
return;
}
try {
chunk.r = g.e;
d.a(((World) (g)), chunk);
} catch (Throwable ioexception) { // CraftBukkit -- downcast to work
ioexception.printStackTrace();
}
}
public void a(IChunkProvider ichunkprovider, int i, int j) {
Chunk chunk = b(i, j);
if (!chunk.n) {
chunk.n = true;
if (c != null) {
c.a(ichunkprovider, i, j);
chunk.f();
}
}
}
public boolean a(boolean flag, IProgressUpdate iprogressupdate) {
int i = 0;
for (int j = 0; j < f.size(); j++) {
Chunk chunk = (Chunk) f.get(j);
if (flag && !chunk.p) {
a(chunk);
}
if (!chunk.a(flag)) {
continue;
}
b(chunk);
chunk.o = false;
if (++i == 24 && !flag) {
return false;
}
}
if (flag) {
if (d == null) {
return true;
}
d.b();
}
return true;
}
public boolean a() {
if (!g.C) {
for (int i = 0; i < 100; i++) {
if (!a.isEmpty()) {
ChunkCoordinates chunkcoordinates = (ChunkCoordinates) a.iterator().next();
Chunk chunk = b(chunkcoordinates.a, chunkcoordinates.b);
chunk.e();
b(chunk);
a(chunk);
a.remove(((chunkcoordinates)));
e.remove(((chunkcoordinates)));
f.remove(((chunk)));
}
}
if (d != null) {
d.a();
}
}
return c.a();
}
public boolean b() {
return !g.C;
}
}
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