Initial Prey Game integration support.

neo/prey/idLib/math/prey_math.h

@@ -0,0 +1,56 @@
+
+#ifndef __PREY_GAME_MATH_H__
+#define __PREY_GAME_MATH_H__
+
+class hhMath : public idMath {
+
+public:
+	static float		logBase(float base, float x);
+	static float		dB2Scale( float dB );
+	static float		Scale2dB( float scale );
+	static float		Frac( float a );
+
+	static float		Pow( const float num, const float exponent );
+
+	static float		MidPointLerp( const float startVal, const float midVal, const float endVal, const float alpha );
+
+	static float		Lerp( const float startVal, const float endVal, const float alpha );
+	static float		Lerp( const idVec2& valRange, const float alpha );
+
+	template< class Type >
+	static Type			hhMin( Type Val1, Type Val2 );
+
+	template< class Type >
+	static Type			hhMax( Type Val1, Type Val2 );
+
+	static idVec3		GetClosestPtOnBoundary(const idVec3 &pt, const idBounds &bnds );
+
+	static idVec3		ProjectPointOntoLine( const idVec3& point, const idVec3& line, const idVec3& lineStartPoint );
+	static float		DistFromPointToLine( const idVec3& point, const idVec3& line, const idVec3& lineStartPoint );
+
+	static void			BuildRotationMatrix(float phi, int axis, idMat3 &mat); //rww
+
+	static const float	EXPONENTIAL;
+};
+
+/*
+===============
+hhMath::hhMin
+===============
+*/
+template< class Type >
+Type hhMath::hhMin( Type Val1, Type Val2 ) {
+	return Min( Val1, Val2 );
+}
+
+/*
+===============
+hhMath::hhMax
+===============
+*/
+template< class Type >
+Type hhMath::hhMax( Type Val1, Type Val2 ) {
+	return Max( Val1, Val2 );
+}
+
+#endif /* __PREY_GAME_MATH_H__ */