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| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /sp/src/game/client/c_func_reflective_glass.cpp | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'sp/src/game/client/c_func_reflective_glass.cpp')
| -rw-r--r-- | sp/src/game/client/c_func_reflective_glass.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sp/src/game/client/c_func_reflective_glass.cpp b/sp/src/game/client/c_func_reflective_glass.cpp new file mode 100644 index 00000000..56d7bda8 --- /dev/null +++ b/sp/src/game/client/c_func_reflective_glass.cpp @@ -0,0 +1,118 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//===========================================================================//
+#include "cbase.h"
+#include "view_shared.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+class C_FuncReflectiveGlass : public C_BaseEntity
+{
+public:
+ DECLARE_CLASS( C_FuncReflectiveGlass, C_BaseEntity );
+ DECLARE_CLIENTCLASS();
+
+// C_BaseEntity.
+public:
+ C_FuncReflectiveGlass();
+ virtual ~C_FuncReflectiveGlass();
+
+ virtual bool ShouldDraw();
+
+ C_FuncReflectiveGlass *m_pNext;
+};
+
+IMPLEMENT_CLIENTCLASS_DT( C_FuncReflectiveGlass, DT_FuncReflectiveGlass, CFuncReflectiveGlass )
+END_RECV_TABLE()
+
+
+//-----------------------------------------------------------------------------
+// Globals
+//-----------------------------------------------------------------------------
+C_EntityClassList<C_FuncReflectiveGlass> g_ReflectiveGlassList;
+template<> C_FuncReflectiveGlass *C_EntityClassList<C_FuncReflectiveGlass>::m_pClassList = NULL;
+
+C_FuncReflectiveGlass* GetReflectiveGlassList()
+{
+ return g_ReflectiveGlassList.m_pClassList;
+}
+
+
+//-----------------------------------------------------------------------------
+// Constructor, destructor
+//-----------------------------------------------------------------------------
+C_FuncReflectiveGlass::C_FuncReflectiveGlass()
+{
+ g_ReflectiveGlassList.Insert( this );
+}
+
+C_FuncReflectiveGlass::~C_FuncReflectiveGlass()
+{
+ g_ReflectiveGlassList.Remove( this );
+}
+
+
+bool C_FuncReflectiveGlass::ShouldDraw()
+{
+ return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Do we have reflective glass in view?
+//-----------------------------------------------------------------------------
+bool IsReflectiveGlassInView( const CViewSetup& view, cplane_t &plane )
+{
+ // Early out if no cameras
+ C_FuncReflectiveGlass *pReflectiveGlass = GetReflectiveGlassList();
+ if ( !pReflectiveGlass )
+ return false;
+
+ Frustum_t frustum;
+ GeneratePerspectiveFrustum( view.origin, view.angles, view.zNear, view.zFar, view.fov, view.m_flAspectRatio, frustum );
+
+ cplane_t localPlane;
+ Vector vecOrigin, vecWorld, vecDelta, vecForward;
+ AngleVectors( view.angles, &vecForward, NULL, NULL );
+
+ for ( ; pReflectiveGlass != NULL; pReflectiveGlass = pReflectiveGlass->m_pNext )
+ {
+ if ( pReflectiveGlass->IsDormant() )
+ continue;
+
+ Vector vecMins, vecMaxs;
+ pReflectiveGlass->GetRenderBoundsWorldspace( vecMins, vecMaxs );
+ if ( R_CullBox( vecMins, vecMaxs, frustum ) )
+ continue;
+
+ const model_t *pModel = pReflectiveGlass->GetModel();
+ const matrix3x4_t& mat = pReflectiveGlass->EntityToWorldTransform();
+
+ int nCount = modelinfo->GetBrushModelPlaneCount( pModel );
+ for ( int i = 0; i < nCount; ++i )
+ {
+ modelinfo->GetBrushModelPlane( pModel, i, localPlane, &vecOrigin );
+
+ MatrixTransformPlane( mat, localPlane, plane ); // Transform to world space
+ VectorTransform( vecOrigin, mat, vecWorld );
+
+ if ( view.origin.Dot( plane.normal ) <= plane.dist ) // Check for view behind plane
+ continue;
+
+ VectorSubtract( vecWorld, view.origin, vecDelta ); // Backface cull
+ if ( vecDelta.Dot( plane.normal ) >= 0 )
+ continue;
+
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+
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