osb/source/game/StarParticleDatabase.cpp

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2023-06-20 04:33:09 +00:00
#include "StarParticleDatabase.hpp"
#include "StarJsonExtra.hpp"
#include "StarAssets.hpp"
#include "StarRoot.hpp"
namespace Star {
ParticleConfig::ParticleConfig(Json const& config) {
m_kind = config.getString("kind");
m_particle = Particle(config.queryObject("definition"));
m_variance = Particle(config.queryObject("definition.variance", {}));
}
String const& ParticleConfig::kind() {
return m_kind;
}
Particle ParticleConfig::instance() {
auto particle = m_particle;
particle.applyVariance(m_variance);
return particle;
}
ParticleDatabase::ParticleDatabase() {
auto assets = Root::singleton().assets();
auto files = assets->scanExtension("particle");
assets->queueJsons(files);
for (auto file : files) {
auto particleConfig = make_shared<ParticleConfig>(assets->json(file));
if (m_configs.contains(particleConfig->kind()))
throw StarException(strf("Duplicate particle asset kind Name %s. configfile %s", particleConfig->kind(), file));
m_configs[particleConfig->kind()] = particleConfig;
}
}
ParticleConfigPtr ParticleDatabase::config(String const& kind) const {
auto k = kind.toLower();
if (!m_configs.contains(k))
throw StarException(strf("Unknown particle definition with kind %s.", kind));
return m_configs.get(k);
}
ParticleVariantCreator ParticleDatabase::particleCreator(Json const& kindOrConfig, String const& relativePath) const {
if (kindOrConfig.isType(Json::Type::String)) {
auto pconfig = config(kindOrConfig.toString());
return [pconfig]() { return pconfig->instance(); };
} else {
Particle particle(kindOrConfig.toObject(), relativePath);
Particle variance(kindOrConfig.getObject("variance", {}), relativePath);
return makeParticleVariantCreator(move(particle), move(variance));
}
}
Particle ParticleDatabase::particle(Json const& kindOrConfig, String const& relativePath) const {
return particleCreator(kindOrConfig, relativePath)();
}
}