void USpineAtlasAssetFactory::LoadAtlas (USpineAtlasAsset* Asset, const FString& CurrentSourcePath, const FString& LongPackagePath) {
spAtlas* atlas = Asset->GetAtlas(true);
Asset->atlasPages.Empty();
const FString targetTexturePath = LongPackagePath / TEXT("Textures");
spAtlasPage* page = atlas->pages;
while (page) {
const FString sourceTextureFilename = FPaths::Combine(*CurrentSourcePath, UTF8_TO_TCHAR(page->name));
UTexture2D* texture = resolveTexture(Asset, sourceTextureFilename, targetTexturePath);
page = page->next;
Asset->atlasPages.Add(texture);
}
}
const std::vector<TexturedQuad> *resolveModel(const std::string &name)
{
if (!_builtModels.count(name)) {
if (!_models.count(name))
return nullptr;
_textureVariables.clear();
std::vector<TexturedQuad> quads;
_models[name]->instantiateQuads(quads, *this);
for (TexturedQuad &q : quads)
q.texture = resolveTexture(q.texture);
// Deal with texture overlays created by duplicate quads
std::unordered_map<Vec<float, 12>, int> existingQuads;
std::vector<TexturedQuad> filteredQuads;
filteredQuads.reserve(quads.size());
for (size_t i = 0; i < quads.size(); ++i) {
Vec<float, 12> key(
quads[i].p0.x(), quads[i].p0.y(), quads[i].p0.z(),
quads[i].p1.x(), quads[i].p1.y(), quads[i].p1.z(),
quads[i].p2.x(), quads[i].p2.y(), quads[i].p2.z(),
quads[i].p3.x(), quads[i].p3.y(), quads[i].p3.z()
);
auto iter = existingQuads.find(key);
if (iter != existingQuads.end()) {
filteredQuads[iter->second].overlay = quads[i].texture;
filteredQuads[iter->second].tintIndex = quads[i].tintIndex;
} else {
existingQuads.insert(std::make_pair(key, filteredQuads.size()));
filteredQuads.push_back(quads[i]);
}
}
_builtModels.emplace(std::make_pair(name, std::move(filteredQuads)));
}
return &_builtModels[name];
}
