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fix: remove round robin chunk cache (#114)

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This commit is contained in:
DrPerkyLegit
2026-05-25 11:54:30 -04:00
committed by GitHub
parent 25e1358311
commit bb62a9f559
3 changed files with 15 additions and 21 deletions
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27
Minecraft.Client/MultiPlayerChunkCache.cpp
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@@ -15,8 +15,8 @@ MultiPlayerChunkCache::MultiPlayerChunkCache(Level *level)
XZSIZE = level->dimension->getXZSize(); // 4J Added
XZOFFSET = XZSIZE/2; // 4J Added
m_XZSize = XZSIZE;
hasData = new bool[LEVEL_MIN_WIDTH * LEVEL_MIN_WIDTH];
memset(hasData, 0, sizeof(bool) * LEVEL_MIN_WIDTH * LEVEL_MIN_WIDTH);
hasData = new bool[XZSIZE * XZSIZE];
memset(hasData, 0, sizeof(bool) * XZSIZE * XZSIZE);
emptyChunk = new EmptyLevelChunk(level, byteArray(16 * 16 * Level::maxBuildHeight), 0, 0);
@@ -93,8 +93,8 @@ MultiPlayerChunkCache::MultiPlayerChunkCache(Level *level)
this->level = level;
this->cache = new LevelChunk *[LEVEL_MIN_WIDTH * LEVEL_MIN_WIDTH];
memset(this->cache, 0, sizeof(LevelChunk*) * LEVEL_MIN_WIDTH * LEVEL_MIN_WIDTH);
this->cache = new LevelChunk *[XZSIZE * XZSIZE];
memset(this->cache, 0, sizeof(LevelChunk*) * XZSIZE * XZSIZE);
InitializeCriticalSectionAndSpinCount(&m_csLoadCreate,4000);
}
@@ -129,11 +129,10 @@ bool MultiPlayerChunkCache::reallyHasChunk(int x, int z)
// Check we're in range of the stored level - if we aren't, then consider that we do have that chunk as we'll be able to use the water chunk there
if( ( ix < 0 ) || ( ix >= XZSIZE ) ) return true;
if( ( iz < 0 ) || ( iz >= XZSIZE ) ) return true;
int idx = wrapCoord(x, LEVEL_MIN_WIDTH) * LEVEL_MIN_WIDTH + wrapCoord(z, LEVEL_MIN_WIDTH);
int idx = ix * XZSIZE + iz;
LevelChunk *chunk = cache[idx];
if (chunk == nullptr || chunk->x != x || chunk->z != z)
if (chunk == nullptr)
{
return false;
}
@@ -147,10 +146,10 @@ void MultiPlayerChunkCache::drop(const int x, const int z)
if ((ix < 0) || (ix >= XZSIZE)) return;
if ((iz < 0) || (iz >= XZSIZE)) return;
int idx = wrapCoord(x, LEVEL_MIN_WIDTH) * LEVEL_MIN_WIDTH + wrapCoord(z, LEVEL_MIN_WIDTH);
int idx = ix * XZSIZE + iz;
LevelChunk* chunk = cache[idx];
if (chunk != nullptr && !chunk->isEmpty() && chunk->x == x && chunk->z == z)
if (chunk != nullptr && !chunk->isEmpty())
{
// Drop entities in the chunks, especially for the case when a player is dead
// as they will not get the RemoveEntity packet if an entity is removed.
@@ -170,12 +169,12 @@ LevelChunk *MultiPlayerChunkCache::create(int x, int z)
// Check we're in range of the stored level
if( ( ix < 0 ) || ( ix >= XZSIZE ) ) return ( waterChunk ? waterChunk : emptyChunk );
if( ( iz < 0 ) || ( iz >= XZSIZE ) ) return ( waterChunk ? waterChunk : emptyChunk );
int idx = wrapCoord(x, LEVEL_MIN_WIDTH) * LEVEL_MIN_WIDTH + wrapCoord(z, LEVEL_MIN_WIDTH);
int idx = ix * XZSIZE + iz;
LevelChunk *chunk = cache[idx];
LevelChunk *lastChunk = chunk;
if( chunk == nullptr || chunk->x != x || chunk->z != z )
if( chunk == nullptr )
{
EnterCriticalSection(&m_csLoadCreate);
@@ -254,10 +253,10 @@ LevelChunk *MultiPlayerChunkCache::getChunk(int x, int z)
// Check we're in range of the stored level
if( ( ix < 0 ) || ( ix >= XZSIZE ) ) return ( waterChunk ? waterChunk : emptyChunk );
if( ( iz < 0 ) || ( iz >= XZSIZE ) ) return ( waterChunk ? waterChunk : emptyChunk );
int idx = wrapCoord(x, LEVEL_MIN_WIDTH) * LEVEL_MIN_WIDTH + wrapCoord(z, LEVEL_MIN_WIDTH);
int idx = ix * XZSIZE + iz;
LevelChunk *chunk = cache[idx];
if( chunk == nullptr || chunk->x != x || chunk->z != z )
if( chunk == nullptr )
{
return emptyChunk;
}
@@ -316,6 +315,6 @@ void MultiPlayerChunkCache::dataReceived(int x, int z)
// Check we're in range of the stored level
if( ( ix < 0 ) || ( ix >= XZSIZE ) ) return;
if( ( iz < 0 ) || ( iz >= XZSIZE ) ) return;
int idx = wrapCoord(x, LEVEL_MIN_WIDTH) * LEVEL_MIN_WIDTH + wrapCoord(z, LEVEL_MIN_WIDTH);
int idx = ix * XZSIZE + iz;
hasData[idx] = true;
}