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Include/ZRendererUtil/ZParticleRenderStrategy.h

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+/*
+	ZParticleRenderStrategy.h
+	Author: James Russell <jcrussell@762studios.com>
+
+	Purpose: TODO
+
+	Changelog
+	2011/08/28 - creation (jcrussell)
+*/
+
+#pragma once
+
+#ifndef _ZPARTICLERENDERSTRATEGY_H
+#define _ZPARTICLERENDERSTRATEGY_H
+
+#include <ZUtil/ZUtil.hpp>
+#include <ZRenderer/ZRenderer.hpp>
+#include <ZRendererUtil/ZParticleStorageAllocator.h>
+
+//Forward Declarations
+class ZParticleEffect;
+class ZParticleEmitter;
+class ZParticleStorageAllocator;
+
+class ZParticleRenderStrategy
+{
+public:
+	//Virtual Destructor
+	~ZParticleRenderStrategy() { }
+
+	/*
+	public ZParticleRenderStrategy::AllocateBuffers
+	
+	Called when the particle render strategy needs to allocate buffers from the renderer
+	for particle data.
+	
+	@param _maxParticles - the number of particles to allocate buffer space for
+	@param _renderer - the renderer to allocate buffers from
+	@return (void)
+	@context (all)
+	*/
+	virtual void AllocateBuffers(size_t _maxParticles, ZRenderer *_renderer) = 0;
+
+	/*
+	virtual public ZParticleRenderStrategy::CheckParticleFormat
+	
+	Checks to see if this render strategy can render the provided particle format.
+	
+	@param _format - string description of the particle format
+	@return (bool) - true if this render strategy can handle it, false otherwise
+	@context (all)
+	*/
+	virtual bool CheckParticleFormat(const ZString& _format) = 0;
+
+	/*
+	virtual public ZParticleUpdateStrategy::RenderParticles
+
+	Renders the particle data present in particle storage.
+	
+	@param _particleEffect - the emitter's parent particle effect
+	@param _particleEmitter - the parent emitter
+	@param _storageAllocator - the particle data storage
+	@param _renderer - the renderer to render to
+	@param _frameContext - the frame context to render with
+	@return (void)
+	@context (all)
+	*/
+	virtual void RenderParticles(ZParticleEffect* _particleEffect, 
+								 ZParticleEmitter* _particleEmitter, 
+								 ZParticleStorageAllocator* _storageAllocator, 
+								 ZRenderer* _renderer, 
+								 ZFrameContext _frameContext,
+								 const ZMatrix44f& _transform,
+								 int _drawGroup 
+								 ) = 0;
+
+};
+
+#endif
+