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voxel-engine
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chunkmanager: delete far chunks from memory

vertex-deduplication
EmaMaker 2023-03-13 12:56:46 +01:00
parent ba35689c6c
commit b7077af00f
1 changed files with 25 additions and 5 deletions
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30
src/chunkmanager.cpp
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@ -94,6 +94,7 @@ namespace chunkmanager
int rr{RENDER_DISTANCE * RENDER_DISTANCE};
uint8_t f = 0;
glm::vec4 frustumPlanes[6];
std::set<uint32_t> old_chunks;
void update(float deltaTime)
{
@ -104,10 +105,27 @@ namespace chunkmanager
// Iterate over all chunks, in concentric spheres starting fron the player and going outwards
// Eq. of the sphere (x - a)² + (y - b)² + (z - c)² = r²
glm::vec3 cameraPos = theCamera.getPos();
theCamera.getFrustumPlanes(frustumPlanes, true);
theCamera.getFrustumPlanes(frustumPlanes, true);
int chunkX{(static_cast<int>(cameraPos.x)) / CHUNK_SIZE}, chunkY{(static_cast<int>(cameraPos.y)) / CHUNK_SIZE}, chunkZ{(static_cast<int>(cameraPos.z)) / CHUNK_SIZE};
// Check for far chunks that need to be cleaned up from memory
for(const auto& n : chunks){
Chunk::Chunk* c = n.second;
int x{(int)(c->getPosition().x)};
int y{(int)(c->getPosition().y)};
int z{(int)(c->getPosition().z)};
if( (chunkX-x)*(chunkX-x) + (chunkY-y)*(chunkY-y) + (chunkZ-z)*(chunkZ-z) >=
(int)(RENDER_DISTANCE*1.5)*(int)(RENDER_DISTANCE*1.5)){
delete c;
nUnloaded ++;
old_chunks.insert(n.first);
}
}
for(uint32_t i : old_chunks) chunks.erase(i);
old_chunks.clear();
// Possible change: coordinates everything at the origin, then translate later?
// Step 1. Eq. of a circle. Fix the x coordinate, get the 2 possible y's
int xp{0}, x{0};
@ -177,9 +195,11 @@ namespace chunkmanager
b = false;
}
}
std::cout << "Total chunks to draw: " << total << ". Sent to GPU: " << toGpu << "\n";
total = 0;
toGpu = 0;
//std::cout << "Chunks to mesh: " << to_mesh.size() << "\n";
//std::cout << "Chunks to generate: " << to_generate.size() << "\n";
//std::cout << "Total chunks to draw: " << total << ". Sent to GPU: " << toGpu << "\n";
//total = 0;
//toGpu = 0;
if ((f & 1))
mutex_queue_generate.unlock();