71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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// This defines things that allow particle effects to hook into the particle app.
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#ifndef PARTICLE_PROTOTYPE_H
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#define PARTICLE_PROTOTYPE_H
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class CParticleMgr;
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class RecvTable;
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// Command-line args can be passed in to set state or options in the effects.
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class IPrototypeArgAccess
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{
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public:
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virtual const char* FindArg(const char *pName, const char *pDefault=0)=0;
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};
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// You must implement this interface for the prototype app to be able to run your effect.
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class IPrototypeAppEffect
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{
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public:
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virtual ~IPrototypeAppEffect() {}
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// Start the effect. You can get command-line args with pArgs.
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virtual void Start(CParticleMgr *pParticleMgr, IPrototypeArgAccess *pArgs)=0;
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// Return false if you don't allow properties to be edited in the prototype app.
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virtual bool GetPropEditInfo(RecvTable **ppTable, void **ppObj) {return false;}
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};
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// Used internally.
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typedef IPrototypeAppEffect* (*PrototypeEffectCreateFn)();
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class PrototypeEffectLink
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{
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public:
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PrototypeEffectLink(PrototypeEffectCreateFn fn, const char *pName);
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PrototypeEffectCreateFn m_CreateFn;
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const char *m_pEffectName;
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PrototypeEffectLink *m_pNext;
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};
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#ifdef PARTICLEPROTOTYPE_APP
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extern PrototypeEffectLink *g_pPrototypeEffects; // The list of prototype effects..
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// Expose your effect with this macro.
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#define EXPOSE_PROTOTYPE_EFFECT(effectName, className) \
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static IPrototypeAppEffect* ___Create##effectName##() {return new className;} \
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static PrototypeEffectLink ___effectlink_##effectName##(___Create##effectName##, #effectName);
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#else
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#define EXPOSE_PROTOTYPE_EFFECT(effectName, className)
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#endif
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#endif
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