90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
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//===== Copyright <20> 1996-2005, 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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#ifndef ICLIENTALPHAPROPERTY_H
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#define ICLIENTALPHAPROPERTY_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "interface.h"
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#include "iclientunknown.h"
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#include "appframework/IAppSystem.h"
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#include "const.h"
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enum ClientAlphaDistanceFadeMode_t
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{
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CLIENT_ALPHA_DISTANCE_FADE_USE_CENTER = 0,
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CLIENT_ALPHA_DISTANCE_FADE_USE_NEAREST_BBOX,
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CLIENT_ALPHA_DISTANCE_FADE_MODE_COUNT,
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};
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//-----------------------------------------------------------------------------
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// NOTE: Clients are *not* expected to implement this interface
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// Instead, these are managed completely by the client DLL.
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// Use the IClientTranslucency manager to allocate + free IClientTranslucency objects
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//-----------------------------------------------------------------------------
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abstract_class IClientAlphaProperty
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{
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public:
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// Gets at the containing class...
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virtual IClientUnknown* GetIClientUnknown() = 0;
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// Sets a constant alpha modulation value
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virtual void SetAlphaModulation( uint8 a ) = 0;
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// Sets an FX function
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// NOTE: kRenderFxFadeSlow, kRenderFxFadeFast, kRenderFxSolidSlow, kRenderFxSolidFast all need a start time only.
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// kRenderFxFadeIn/kRenderFxFadeOut needs start time + duration
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// All other render fx require no parameters
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virtual void SetRenderFX( RenderFx_t nRenderFx, RenderMode_t nRenderMode, float flStartTime = FLT_MAX, float flDuration = 0.0f ) = 0;
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// Sets fade parameters
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virtual void SetFade( float flGlobalFadeScale, float flDistFadeStart, float flDistFadeEnd ) = 0;
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// Sets desync offset, used to make sine waves not match
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virtual void SetDesyncOffset( int nOffset ) = 0;
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// Allows the owner to override alpha.
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// The method IClientRenderable::OverrideAlphaModulation will be called
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// to allow the owner to optionally return a different alpha modulation
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virtual void EnableAlphaModulationOverride( bool bEnable ) = 0;
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// Allows the owner to override projected shadow alpha.
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// The method IClientRenderable::OverrideShadowAlphaModulation will be called
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// to allow the owner to optionally return a different alpha modulation for the shadow
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virtual void EnableShadowAlphaModulationOverride( bool bEnable ) = 0;
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// Sets the distance fade mode
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virtual void SetDistanceFadeMode( ClientAlphaDistanceFadeMode_t nFadeMode ) = 0;
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};
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//-----------------------------------------------------------------------------
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// Manager used to deal with client translucency
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//-----------------------------------------------------------------------------
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#define CLIENT_ALPHA_PROPERTY_MGR_INTERFACE_VERSION "ClientAlphaPropertyMgrV001"
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abstract_class IClientAlphaPropertyMgr
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{
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public:
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// Class factory
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virtual IClientAlphaProperty *CreateClientAlphaProperty( IClientUnknown *pUnk ) = 0;
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virtual void DestroyClientAlphaProperty( IClientAlphaProperty *pAlphaProperty ) = 0;
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};
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#ifndef SWDS
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extern IClientAlphaPropertyMgr *g_pClientAlphaPropertyMgr;
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#endif
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#endif // ICLIENTALPHAPROPERTY_H
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