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Minor optimization - only creating vector if we are going to use it.

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This commit is contained in:
David Williams 2015-04-12 09:42:15 +02:00
parent 54903150e9
commit f35581506c
1 changed files with 1 additions and 2 deletions
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3
include/PolyVox/PagedVolume.inl
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@ -270,8 +270,6 @@ namespace PolyVox
template <typename VoxelType> template <typename VoxelType>
typename PagedVolume<VoxelType>::Chunk* PagedVolume<VoxelType>::getChunk(int32_t uChunkX, int32_t uChunkY, int32_t uChunkZ) const typename PagedVolume<VoxelType>::Chunk* PagedVolume<VoxelType>::getChunk(int32_t uChunkX, int32_t uChunkY, int32_t uChunkZ) const
{ {
Vector3DInt32 v3dChunkPos(uChunkX, uChunkY, uChunkZ);
// The chunk was not the same as last time, but we can now hope it is in the set of most recently used chunks. // The chunk was not the same as last time, but we can now hope it is in the set of most recently used chunks.
/*Chunk* pChunk = nullptr; /*Chunk* pChunk = nullptr;
auto itChunk = m_mapChunks.find(v3dChunkPos); auto itChunk = m_mapChunks.find(v3dChunkPos);
@ -328,6 +326,7 @@ namespace PolyVox
if (!pChunk) if (!pChunk)
{ {
// The chunk was not found so we will create a new one. // The chunk was not found so we will create a new one.
Vector3DInt32 v3dChunkPos(uChunkX, uChunkY, uChunkZ);
pChunk = new PagedVolume<VoxelType>::Chunk(v3dChunkPos, m_uChunkSideLength, m_pPager); pChunk = new PagedVolume<VoxelType>::Chunk(v3dChunkPos, m_uChunkSideLength, m_pPager);
pChunk->m_uChunkLastAccessed = ++m_uTimestamper; // Important, as we may soon delete the oldest chunk pChunk->m_uChunkLastAccessed = ++m_uTimestamper; // Important, as we may soon delete the oldest chunk
//m_mapChunks.insert(std::make_pair(v3dChunkPos, std::unique_ptr<Chunk>(pChunk))); //m_mapChunks.insert(std::make_pair(v3dChunkPos, std::unique_ptr<Chunk>(pChunk)));