// Copyright (C) 2002-2011 Nikolaus Gebhardt

// This file is part of the "Irrlicht Engine".

// For conditions of distribution and use, see copyright notice in irrlicht.h


#ifndef __I_PARTICLE_MESH_EMITTER_H_INCLUDED__
#define __I_PARTICLE_MESH_EMITTER_H_INCLUDED__

#include "IParticleEmitter.h"
#include "IMesh.h"

namespace irr
{
namespace scene
{

//! A particle emitter which emits from vertices of a mesh

class IParticleMeshEmitter : public IParticleEmitter
{
public:

	//! Set Mesh to emit particles from

	virtual void setMesh( IMesh* mesh ) = 0;

	//! Set whether to use vertex normal for direction, or direction specified

	virtual void setUseNormalDirection( bool useNormalDirection = true ) = 0;

	//! Set the amount that the normal is divided by for getting a particles direction

	virtual void setNormalDirectionModifier( f32 normalDirectionModifier ) = 0;

	//! Sets whether to emit min<->max particles for every vertex or to pick min<->max vertices

	virtual void setEveryMeshVertex( bool everyMeshVertex = true ) = 0;

	//! Get Mesh we're emitting particles from

	virtual const IMesh* getMesh() const = 0;

	//! Get whether to use vertex normal for direction, or direction specified

	virtual bool isUsingNormalDirection() const = 0;

	//! Get the amount that the normal is divided by for getting a particles direction

	virtual f32 getNormalDirectionModifier() const = 0;

	//! Gets whether to emit min<->max particles for every vertex or to pick min<->max vertices

	virtual bool getEveryMeshVertex() const = 0;

	//! Get emitter type

	virtual E_PARTICLE_EMITTER_TYPE getType() const { return EPET_MESH; }
};

} // end namespace scene

} // end namespace irr



#endif