void PushChunkIntoCache(TerrianChunk chunk)
{
if (chunk == null)
{
return;
}
string chunkName = GetChunkName(chunk.chunkX, chunk.chunkZ);
mCacheChunks[chunkName] = chunk;
chunk.OnPushIntoCache();
}
TerrianChunk GetChunkInCache(string chunkName)
{
TerrianChunk chunk = null;
if (mCacheChunks.TryGetValue(chunkName, out chunk))
{
mCacheChunks.Remove(chunkName);
chunk.OnGetFromCache();
}
return(chunk);
}
/// <summary>
/// 当主控玩家位置改变时的处理
/// </summary>
/// <param name="x"></param>
/// <param name="z"></param>
public void OnPlayerPosChanged(Vector3 playerPos, Action onLoadComplete = null)
{
int blockX = (int)(playerPos.x / WorldDef.BLOCK_SIZE);
int blockZ = (int)(playerPos.z / WorldDef.BLOCK_SIZE);
if (blockX == mPlayerBlockX && blockZ == mPlayerBlockZ)
{
return;
}
mPlayerBlockX = blockX;
mPlayerBlockZ = blockZ;
int chunkX = blockX / WorldDef.CHUNK_BLOCK_NUM;
int chunkZ = blockZ / WorldDef.CHUNK_BLOCK_NUM;
//检查玩家是否还在老的区块范围内，如果没有，则无需调整区块
if (chunkX == mPlayerChunkX && chunkZ == mPlayerChunkZ)
{
return;
}
Debug.LogFormat("player change chunk {0} {1}", chunkX, chunkZ);
mPlayerChunkX = chunkX;
mPlayerChunkZ = chunkZ;
//玩家改变了当前所在的区块，则需要重新整理区块排列，加载新的区块
//先把当前区块放入缓存
for (int i = 0; i < mTerrianChunks.Length; i++)
{
PushChunkIntoCache(mTerrianChunks[i]);
}
mLoadingChunks.Clear();
mStartChunkX = chunkX - WorldDef.CHUNK_NUM / 2;
mStartChunkZ = chunkZ - WorldDef.CHUNK_NUM / 2;
for (int cz = mStartChunkZ; cz < mStartChunkZ + WorldDef.CHUNK_NUM; cz++)
{
for (int cx = mStartChunkX; cx < mStartChunkX + WorldDef.CHUNK_NUM; cx++)
{
int chunkIdx = (cz - mStartChunkZ) * WorldDef.CHUNK_NUM + cx - mStartChunkX;
//尝试从缓存中寻找区块
string chunkName = GetChunkName(cx, cz);
TerrianChunk chunk = GetChunkInCache(chunkName);
if (chunk == null)
{
chunk = new TerrianChunk(cx, cz); //缓存也没有区块则新建一个区块
mLoadingChunks.Add(chunk);
}
//把新区块写入到该位置
mTerrianChunks[chunkIdx] = chunk;
}
}
Loom.RunAsync(() =>
{
ThreadLoadChunk(onLoadComplete);
});
}
