@SideOnly(Side.CLIENT)
public class ChunkProviderClient implements IChunkProvider
{
private static final Logger LOGGER = LogManager.getLogger();
/**
* The completely empty chunk used by ChunkProviderClient when chunkMapping doesn't contain the requested
* coordinates.
*/
private final Chunk blankChunk;
/** The mapping between ChunkCoordinates and Chunks that ChunkProviderClient maintains. */
private final Long2ObjectMap<Chunk> chunkMapping = new Long2ObjectOpenHashMap<Chunk>(8192)
{
protected void rehash(int p_rehash_1_)
{
if (p_rehash_1_ > this.key.length)
{
super.rehash(p_rehash_1_);
}
}
};
/** Reference to the World object. */
private final World world;
public ChunkProviderClient(World worldIn)
{
this.blankChunk = new EmptyChunk(worldIn, 0, 0);
this.world = worldIn;
}
/**
* Unload chunk from ChunkProviderClient's hashmap. Called in response to a Packet50PreChunk with its mode field set
* to false
*/
public void unloadChunk(int x, int z)
{
Chunk chunk = this.provideChunk(x, z);
if (!chunk.isEmpty())
{
chunk.onUnload();
}
this.chunkMapping.remove(ChunkPos.asLong(x, z));
}
@Nullable
public Chunk getLoadedChunk(int x, int z)
{
return (Chunk)this.chunkMapping.get(ChunkPos.asLong(x, z));
}
/**
* loads or generates the chunk at the chunk location specified
*/
public Chunk loadChunk(int chunkX, int chunkZ)
{
Chunk chunk = new Chunk(this.world, chunkX, chunkZ);
this.chunkMapping.put(ChunkPos.asLong(chunkX, chunkZ), chunk);
net.minecraftforge.common.MinecraftForge.EVENT_BUS.post(new net.minecraftforge.event.world.ChunkEvent.Load(chunk));
chunk.markLoaded(true);
return chunk;
}
public Chunk provideChunk(int x, int z)
{
return (Chunk)MoreObjects.firstNonNull(this.getLoadedChunk(x, z), this.blankChunk);
}
/**
* Unloads chunks that are marked to be unloaded. This is not guaranteed to unload every such chunk.
*/
public boolean tick()
{
long i = System.currentTimeMillis();
ObjectIterator objectiterator = this.chunkMapping.values().iterator();
while (objectiterator.hasNext())
{
Chunk chunk = (Chunk)objectiterator.next();
chunk.onTick(System.currentTimeMillis() - i > 5L);
}
if (System.currentTimeMillis() - i > 100L)
{
LOGGER.info("Warning: Clientside chunk ticking took {} ms", (long)(System.currentTimeMillis() - i));
}
return false;
}
/**
* Converts the instance data to a readable string.
*/
public String makeString()
{
return "MultiplayerChunkCache: " + this.chunkMapping.size() + ", " + this.chunkMapping.size();
}
public boolean isChunkGeneratedAt(int x, int z)
{
return this.chunkMapping.containsKey(ChunkPos.asLong(x, z));
}
}
