1 files changed, 44 insertions, 0 deletions
diff --git a/game/server/cplane.h b/game/server/cplane.h
new file mode 100644
index 0000000..98d5b45
--- /dev/null
+++ b/game/server/cplane.h
@@ -0,0 +1,44 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#pragma once
+
+#ifndef CPLANE_H
+#define CPLANE_H
+
+//=========================================================
+// Plane
+//=========================================================
+class CPlane 
+{
+public:
+	CPlane ( void );
+
+	//=========================================================
+	// InitializePlane - Takes a normal for the plane and a
+	// point on the plane and 
+	//=========================================================
+	void InitializePlane ( const Vector &vecNormal, const Vector &vecPoint );
+
+	//=========================================================
+	// PointInFront - determines whether the given vector is 
+	// in front of the plane. 
+	//=========================================================
+	bool PointInFront ( const Vector &vecPoint );
+
+	//=========================================================
+	// How far off the plane is this point?
+	//=========================================================
+	float PointDist( const Vector &vecPoint );
+
+private:
+	Vector	m_vecNormal;
+	float	m_flDist;
+	bool	m_fInitialized;
+};
+
+#endif //CPLANE_H