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#include "AudioSystem.h"
#include "../manager/ComponentManager.h"
#include "../manager/ResourceManager.h"
#include "../types.h"
using namespace crepe;
using namespace std;
void AudioSystem::update() {
ComponentManager & component_manager = this->mediator.component_manager;
ResourceManager & resource_manager = this->mediator.resource_manager;
RefVector<AudioSource> components = component_manager.get_components_by_type<AudioSource>();
for (AudioSource & component : components) {
if (!component.active) continue;
Sound & resource = resource_manager.get<Sound>(component.source);
if (component.private_data.empty()) {
auto & data = component.private_data.set<ComponentPrivate>();
this->update_last(component, data);
data.last_playing = false; // always start
}
auto & data = component.private_data.get<ComponentPrivate>();
this->diff_update(component, data, resource);
this->update_last(component, data);
}
}
void AudioSystem::diff_update(AudioSource & component, ComponentPrivate & data, Sound & resource) {
bool update_playing = component.playing != data.last_playing;
bool update_volume = component.volume != data.last_volume;
bool update_loop = component.loop != data.last_loop;
bool update_active = component.active != data.last_active;
if (update_active) {
if (component.active) {
update_playing = true;
if (component.play_on_awake)
component.playing = true;
} else {
this->context.stop(data.handle);
return;
}
}
if (!component.active) return;
if (update_playing) {
if (component.playing) data.handle = this->context.play(resource);
else this->context.stop(data.handle);
} else {
component.playing = this->context.get_playing(data.handle);
}
if (update_volume) {
this->context.set_volume(resource, data.handle, component.volume);
}
if (update_loop) {
this->context.set_loop(resource, data.handle, component.loop);
}
}
void AudioSystem::update_last(const AudioSource & component, ComponentPrivate & data) {
data.last_active = component.active;
data.last_loop = component.loop;
data.last_playing = component.playing;
data.last_volume = component.volume;
}
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