/*
 * Copyright 2011-2013 Blender Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __PARTICLES_H__
#define __PARTICLES_H__

#include "util_types.h"
#include "util_vector.h"

CCL_NAMESPACE_BEGIN

class Device;
class DeviceScene;
class Progress;
class Scene;

/* Particle System */

struct Particle {
	int index;
	float age;
	float lifetime;
	float3 location;
	float4 rotation;
	float size;
	float3 velocity;
	float3 angular_velocity;
};

class ParticleSystem {
public:
	ParticleSystem();
	~ParticleSystem();

	void tag_update(Scene *scene);

	vector<Particle> particles;
};

/* ParticleSystem Manager */

class ParticleSystemManager {
public:
	bool need_update;

	ParticleSystemManager();
	~ParticleSystemManager();

	void device_update_particles(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
	void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
	void device_free(Device *device, DeviceScene *dscene);

	void tag_update(Scene *scene);
};

CCL_NAMESPACE_END

#endif /* __PARTICLES_H__ */