149 lines
3.9 KiB
C++
149 lines
3.9 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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#include "cbase.h"
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#include "baseanimatedtextureproxy.h"
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#include "materialsystem/imaterial.h"
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#include "materialsystem/imaterialvar.h"
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#include "materialsystem/itexture.h"
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#include "tier1/KeyValues.h"
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#include "toolframework_client.h"
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#include "tier0/minidump.h"
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#include "tier0/stacktools.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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// forward declarations
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void ToolFramework_RecordMaterialParams( IMaterial *pMaterial );
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//-----------------------------------------------------------------------------
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// Constructor, destructor:
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//-----------------------------------------------------------------------------
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CBaseAnimatedTextureProxy::CBaseAnimatedTextureProxy()
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{
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Cleanup();
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}
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CBaseAnimatedTextureProxy::~CBaseAnimatedTextureProxy()
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{
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Cleanup();
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}
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//-----------------------------------------------------------------------------
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// Initialization, shutdown
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//-----------------------------------------------------------------------------
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bool CBaseAnimatedTextureProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues )
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{
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char const* pAnimatedTextureVarName = pKeyValues->GetString( "animatedTextureVar" );
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if( pAnimatedTextureVarName )
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{
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bool foundVar;
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m_AnimatedTextureVar = pMaterial->FindVar( pAnimatedTextureVarName, &foundVar, false );
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if( foundVar )
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{
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char const* pAnimatedTextureFrameNumVarName = pKeyValues->GetString( "animatedTextureFrameNumVar" );
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if( pAnimatedTextureFrameNumVarName )
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{
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m_AnimatedTextureFrameNumVar = pMaterial->FindVar( pAnimatedTextureFrameNumVarName, &foundVar, false );
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if( foundVar )
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{
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m_FrameRate = pKeyValues->GetFloat( "animatedTextureFrameRate", 15 );
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m_WrapAnimation = !pKeyValues->GetInt( "animationNoWrap", 0 );
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return true;
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}
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}
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}
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}
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// Error - null out pointers.
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Cleanup();
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return false;
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}
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void CBaseAnimatedTextureProxy::Cleanup()
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{
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m_AnimatedTextureVar = NULL;
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m_AnimatedTextureFrameNumVar = NULL;
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}
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//-----------------------------------------------------------------------------
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// Does the dirty deed
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//-----------------------------------------------------------------------------
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void CBaseAnimatedTextureProxy::OnBind( void *pEntity )
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{
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Assert ( m_AnimatedTextureVar );
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if( m_AnimatedTextureVar->GetType() != MATERIAL_VAR_TYPE_TEXTURE )
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{
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return;
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}
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ITexture *pTexture;
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pTexture = m_AnimatedTextureVar->GetTextureValue();
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int numFrames = pTexture->GetNumAnimationFrames();
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if ( numFrames <= 0 )
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{
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Assert( !"0 frames in material calling animated texture proxy" );
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return;
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}
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// NOTE: Must not use relative time based methods here
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// because the bind proxy can be called many times per frame.
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// Prevent multiple Wrap callbacks to be sent for no wrap mode
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float startTime = GetAnimationStartTime(pEntity);
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float deltaTime = gpGlobals->curtime - startTime;
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float prevTime = deltaTime - gpGlobals->frametime;
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// Clamp..
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if (deltaTime < 0.0f)
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deltaTime = 0.0f;
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if (prevTime < 0.0f)
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prevTime = 0.0f;
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float frame = m_FrameRate * deltaTime;
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float prevFrame = m_FrameRate * prevTime;
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int intFrame = ((int)frame) % numFrames;
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int intPrevFrame = ((int)prevFrame) % numFrames;
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// Report wrap situation...
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if (intPrevFrame > intFrame)
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{
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if (m_WrapAnimation)
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{
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AnimationWrapped( pEntity );
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}
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else
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{
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// Only sent the wrapped message once.
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// when we're in non-wrapping mode
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if (prevFrame < numFrames)
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AnimationWrapped( pEntity );
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intFrame = numFrames - 1;
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}
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}
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m_AnimatedTextureFrameNumVar->SetIntValue( intFrame );
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if ( ToolsEnabled() )
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{
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ToolFramework_RecordMaterialParams( GetMaterial() );
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}
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}
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IMaterial *CBaseAnimatedTextureProxy::GetMaterial()
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{
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return m_AnimatedTextureVar->GetOwningMaterial();
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}
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