1 files changed, 16 insertions, 1 deletions

diff --git a/source/Tracer.h b/source/Tracer.h
index 2f627366f..a4e2d352e 100644
--- a/source/Tracer.h
+++ b/source/Tracer.h
@@ -12,14 +12,29 @@ public:				// tolua_export
 	Vector3f BoxOffset;
 	cTracer( cWorld* a_World);		// tolua_export
 	~cTracer();						// tolua_export
+
+	/// Determines if a collision occures along a line.
 	int Trace( const Vector3f & a_Start, const Vector3f & a_Direction, int a_Distance );		// tolua_export
-	void SetValues( const Vector3f & a_Start, const Vector3f & a_Direction );					// tolua_export
+
+	/// Contains the position of the block that caused the collision
 	Vector3f BlockHitPosition;		// tolua_export
+
+	/// Contains which face was hit
 	Vector3f HitNormal;			// tolua_export
+
+	/// Contains the exact position where a collision occured. (BlockHitPosition + Offset on block)
 	Vector3f RealHit;				// tolua_export
 private:
+
+	/// Preps Tracer object for call of Trace function. Only used internally
+	void SetValues( const Vector3f & a_Start, const Vector3f & a_Direction );
+
+	/// Calculates where on the block a collision occured, if it does occur
 	int intersect3D_SegmentPlane( const Vector3f & a_Origin, const Vector3f & a_End, const Vector3f & a_PlanePos, const Vector3f & a_PlaneNormal );
+	
+	/// Determines which face on the block a collision occured, if it does occur
 	int GetHitNormal( const Vector3f & start, const Vector3f & end, const Vector3i &  a_BlockPos);
+
 	float SigNum( float a_Num );
 	cWorld* m_World;