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public/trace.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef TRACE_H
+#define TRACE_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "mathlib/mathlib.h"
+
+// Note: These flags need to match the bspfile.h DISPTRI_TAG_* flags.
+#define DISPSURF_FLAG_SURFACE		(1<<0)
+#define DISPSURF_FLAG_WALKABLE		(1<<1)
+#define DISPSURF_FLAG_BUILDABLE		(1<<2)
+#define DISPSURF_FLAG_SURFPROP1		(1<<3)
+#define DISPSURF_FLAG_SURFPROP2		(1<<4)
+
+//=============================================================================
+// Base Trace Structure
+// - shared between engine/game dlls and tools (vrad)
+//=============================================================================
+
+class CBaseTrace
+{
+public:
+
+	// Displacement flags tests.
+	bool IsDispSurface( void )				{ return ( ( dispFlags & DISPSURF_FLAG_SURFACE ) != 0 ); }
+	bool IsDispSurfaceWalkable( void )		{ return ( ( dispFlags & DISPSURF_FLAG_WALKABLE ) != 0 ); }
+	bool IsDispSurfaceBuildable( void )		{ return ( ( dispFlags & DISPSURF_FLAG_BUILDABLE ) != 0 ); }
+	bool IsDispSurfaceProp1( void )			{ return ( ( dispFlags & DISPSURF_FLAG_SURFPROP1 ) != 0 ); }
+	bool IsDispSurfaceProp2( void )			{ return ( ( dispFlags & DISPSURF_FLAG_SURFPROP2 ) != 0 ); }
+
+public:
+
+	// these members are aligned!!
+	Vector			startpos;				// start position
+	Vector			endpos;					// final position
+	cplane_t		plane;					// surface normal at impact
+
+	float			fraction;				// time completed, 1.0 = didn't hit anything
+
+	int				contents;				// contents on other side of surface hit
+	unsigned short	dispFlags;				// displacement flags for marking surfaces with data
+
+	bool			allsolid;				// if true, plane is not valid
+	bool			startsolid;				// if true, the initial point was in a solid area
+
+	CBaseTrace() {}
+
+private:
+	// No copy constructors allowed
+	CBaseTrace(const CBaseTrace& vOther);
+};
+
+#endif // TRACE_H