Jiga228
108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
#include "ModelManager.hpp"
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#include "Log/Log.hpp"
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ModelManager::StaticModel::StaticModel(const std::vector<Voxel>& voxels, std::string name):
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name_(std::move(name)),
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voxels_(voxels)
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{
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glm::ivec3 sum_moments{0, 0, 0};
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int sum_masses = 0;
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for (auto& i : voxels_)
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{
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sum_moments += glm::ivec3{i.loc.x * i.mass, i.loc.y * i.mass, i.loc.z * i.mass};
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sum_masses += i.mass;
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}
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if(sum_masses != 0)
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sum_moments /= sum_masses;
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else if (!voxels_.empty())
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{
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sum_moments.x /= static_cast<int>(voxels_.size());
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sum_moments.y /= static_cast<int>(voxels_.size());
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sum_moments.z /= static_cast<int>(voxels_.size());
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}
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mass_center_ = sum_moments;
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}
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ModelManager::StaticModel::~StaticModel()
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{
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OnDestroy.Call(name_);
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}
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ModelManager::owner_counter::owner_counter(const owner_counter& other) : counter(other.counter.load()), model(other.model)
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{
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}
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unsigned int ModelManager::FNV1aHash(const char* buf)
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{
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unsigned int h_val = 0x811c9dc5;
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while (*buf)
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{
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h_val ^= static_cast<unsigned int>(*buf++);
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h_val *= 0x01000193;
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}
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return h_val;
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}
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void ModelManager::OnDestroySometimeModelCaller(const std::string& name)
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{
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Loging::Log("Free model: " + name);
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OnDestroySometimeModel.Call(name);
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}
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ModelManager::~ModelManager()
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{
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for (const auto& [it, counter] : models)
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{
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counter.model->OnDestroy.unbind(this, &ModelManager::OnDestroySometimeModelCaller);
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}
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models.clear();
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}
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ModelManager::StaticModel* ModelManager::LoadModel(const std::string& name)
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{
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if (name.empty())
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return nullptr;
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unsigned int hash = FNV1aHash(name.c_str());
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auto counter = models.find(hash);
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if (counter != models.cend())
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{
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++counter->second.counter;
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return counter->second.model;
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}
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Loging::Log("Load new model: " + name);
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std::vector<Voxel> model_data;
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// Load model_data
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owner_counter new_counter;
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new_counter.counter.store(1);
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new_counter.model = new StaticModel(model_data, name);
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new_counter.model->OnDestroy.bind(this, &ModelManager::OnDestroySometimeModelCaller);
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models.try_emplace(hash, new_counter);
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OnLoadSometimeModel.Call(new_counter.model);
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return new_counter.model;
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}
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void ModelManager::FreeModel(const std::string& name)
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{
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if (name.empty())
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return;
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unsigned int hash = FNV1aHash(name.c_str());
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auto counter = models.find(hash);
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--counter->second.counter;
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StaticModel* model = counter->second.model;
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if (counter->second.counter.load() == 0)
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{
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models.erase(hash);
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delete model;
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}
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}
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