particle_renderer_gl.h

经典开源游戏glest的源代码

// ==============================================================
//	This file is part of Glest Shared Library (www.glest.org)
//
//	Copyright (C) 2001-2008 Marti駉 Figueroa
//
//	You can redistribute this code and/or modify it under 
//	the terms of the GNU General Public License as published 
//	by the Free Software Foundation; either version 2 of the 
//	License, or (at your option) any later version
// ==============================================================

#ifndef _SHARED_GRAPHICS_GL_PARTICLERENDERERGL_H_
#define _SHARED_GRAPHICS_GL_PARTICLERENDERERGL_H_

#include "particle_renderer.h"

namespace Shared{ namespace Graphics{ namespace Gl{

// =====================================================
//	class ParticleRendererGl
// =====================================================

class ParticleRendererGl: public ParticleRenderer{
public:
	static const int bufferSize = 1024;

private:
	bool rendering;
	Vec3f vertexBuffer[bufferSize];
	Vec2f texCoordBuffer[bufferSize];
	Vec4f colorBuffer[bufferSize];

public:
	//particles
	ParticleRendererGl();
	virtual void renderManager(ParticleManager *pm, ModelRenderer *mr);
	virtual void renderSystem(ParticleSystem *ps);
	virtual void renderSystemLine(ParticleSystem *ps);
	virtual void renderSystemLineAlpha(ParticleSystem *ps);
	virtual void renderSingleModel(AttackParticleSystem *ps, ModelRenderer *mr);
	
protected:
	void renderBufferQuads(int quadCount);
	void renderBufferLines(int lineCount);
	void setBlendMode(ParticleSystem::BlendMode blendMode);
};

}}}//end namespace

#endif