moved a few Extras projects into Extras/obsolete.

Extras/obsolete/SATConvexCollision/Maths.h

@@ -0,0 +1,175 @@
+// Bullet Continuous Collision Detection and Physics Library
+// Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+//
+// Maths.h
+//
+// Copyright (c) 2006 Simon Hobbs
+//
+// This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+#ifndef BULLET_MATH_H
+#define BULLET_MATH_H
+
+#ifdef WIN32
+
+#include <math.h>
+#include <stdlib.h>
+#include <float.h>
+
+// intrinsics headers
+#include <mmintrin.h>
+#include <xmmintrin.h>
+
+// vector maths classes require aligned alloc
+#include "Memory2.h"
+
+// constants
+#define PI				3.141592654f
+
+#define Angle5			0.087266462f
+#define Angle10			0.174532925f
+#define Angle15			0.261799388f
+#define Angle30			0.523598776f
+#define Angle45			0.785398163f
+#define Angle60			0.523598776f
+#define Angle90			1.570796327f
+#define Angle180		PI
+#define Angle270		4.71238898f
+#define Angle360		6.283185307f
+
+#define Deg2RadF		0.01745329251994329547f
+#define Rad2DegF		57.29577951308232286465f
+
+#define MinValueF		-3.402823466e+38f
+#define MaxValueF		3.402823466e+38F
+
+#define DefaultEpsilon	0.001f
+
+
+// float functions
+
+inline float Sin(const float f)
+{
+	return sinf(f);
+}
+
+inline float Cos(const float f)
+{
+	return cosf(f);
+}
+
+inline float Tan(const float f)
+{
+	return tanf(f);
+}
+
+inline float Asin(const float f)
+{
+	return asinf(f);
+}
+
+inline float Acos(const float f)
+{
+	return acosf(f);
+}
+
+inline float Atan(const float f)
+{
+	return atanf(f);
+}
+
+inline float Atan2(const float y, const float x)
+{
+	return atan2f(y, x);
+}
+
+inline float Pow(const float x, const float y)
+{
+	return powf(x, y);
+}
+
+inline float Abs(const float x)
+{
+	return fabsf(x);
+}
+
+inline float Min(const float x, const float y)
+{
+	return (x < y) ? x : y;
+}
+
+inline float Max(const float x, const float y)
+{
+	return (x > y) ? x : y;
+}
+
+inline float Clamp(const float x, const float min, const float max)
+{
+	return (x >= max) ? max : Max(x, min);
+}
+
+inline float Sgn(const float f)
+{
+	// TODO: replace this with something that doesn't branch
+	if (f < 0.0f)
+		return -1.0f;
+	if (f > 0.0f)
+		return 1.0f;
+	return 0.0f;
+}
+
+inline float Floor(const float f)
+{
+	return floorf(f);
+}
+
+inline float Ceil(const float f)
+{
+	return ceilf(f);
+}
+
+inline float Mod(const float x, const float y)
+{
+	float n = Floor(x / y);
+	return x - n * y;
+}
+
+inline float Sqrt(const float f)
+{
+	return sqrtf(f);
+}
+
+inline bool Equal(const float x, const float y, const float epsilon = DefaultEpsilon)
+{
+	return Abs(x-y) <= epsilon;
+}
+
+inline float Lerp(const float x, const float y, const float t)
+{
+	return x + (y - x) * t;
+}
+
+inline int Min(const int x, const int y)
+{
+	return (x < y) ? x : y;
+}
+
+inline int Max(const int x, const int y)
+{
+	return (x > y) ? x : y;
+}
+
+#include "Vector.h"
+#include "Matrix.h"
+#include "Quat.h"
+#include "Geometry.h"
+
+#endif //WIN32
+#endif //BULLET_MATH_H