Method MakeParticle

Source/Graphics/particles.cpp:1325–1375

}

unsigned ParticleSystem::MakeParticle(SceneGraph* scenegraph, const std::string& path, const vec3& pos, const vec3& vel, const vec3& tint) {
    // ParticleTypeRef particle_type_ref = particle_types->ReturnRef(path);
    ParticleTypeRef particle_type_ref = Engine::Instance()->GetAssetManager()->LoadSync<ParticleType>(path);
    Particle* particle = new Particle();
    if (particle_type_ref->ae_ref.valid()) {
        particle->ae_reader.AttachTo(particle_type_ref->ae_ref);
    }
    particle->size = RangedRandomFloat(particle_type_ref->size_range[0], particle_type_ref->size_range[1]) * 0.5f;
    for (int i = 0; i < 4; ++i) {
        particle->color[i] = RangedRandomFloat(particle_type_ref->color_range[0][i], particle_type_ref->color_range[1][i]);
    }
    particle->position = pos;
    particle->velocity = vel;
    for (int i = 0; i < 3; ++i) {
        particle->color[i] *= tint[i];
    }
    particle->particle_type = particle_type_ref;
    particle->collided = false;
    particle->alive_time = 0.0f;
    particle->initial_size = particle->size;
    particle->initial_opacity = particle->color[3];
    if (particle_type_ref->opacity_ramp_time > 0.0f) {
        particle->color[3] = 0.0f;
    }
    if (!particle_type_ref->no_rotation) {
        particle->rotate_speed = RangedRandomFloat(particle_type_ref->rotation_range[0], particle_type_ref->rotation_range[1]);
        particle->rotation = (float)abs(rand() % 720) - 360;
    } else {
        particle->rotate_speed = 0.0f;
        particle->rotation = 0.0f;
    }
    particle->old_position = particle->position;
    particle->old_color = particle->color;
    particle->old_size = particle->size;
    particle->old_rotation = particle->rotation;
    particle->has_last_connected = false;
    int id = CreateID();
    particle->id = id;

    particles.push_back(particle);
    particle_map[particle->id] = particle;
    // Only allow one theora-reading particle at any given time
    if (particle->ae_reader.valid()) {
        for (int i = (int)particles.size() - 2; i >= 0; --i) {
            if (particles[i]->ae_reader.valid()) {
                deleteParticle(i);
            }
        }
    }
    return id;
}

// Dispose of particle system
void ParticleSystem::Dispose() {