Initial Mercurial commit.

src/common/math.h

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+/**
+* Copyright (c) 2006-2009 LOVE Development Team
+* 
+* 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 LOVE_MATH_H
+#define LOVE_MATH_H
+
+/* Definitions of useful mathematical constants
+ * M_E        - e
+ * M_LOG2E    - log2(e)
+ * M_LOG10E   - log10(e)
+ * M_LN2      - ln(2)
+ * M_LN10     - ln(10)
+ * M_PI       - pi
+ * M_PI_2     - pi/2
+ * M_PI_4     - pi/4
+ * M_1_PI     - 1/pi
+ * M_2_PI     - 2/pi
+ * M_2_SQRTPI - 2/sqrt(pi)
+ * M_SQRT2    - sqrt(2)
+ * M_SQRT1_2  - 1/sqrt(2)
+ */
+
+#define LOVE_M_E        2.71828182845904523536
+#define LOVE_M_LOG2E    1.44269504088896340736
+#define LOVE_M_LOG10E   0.434294481903251827651
+#define LOVE_M_LN2      0.693147180559945309417
+#define LOVE_M_LN10     2.30258509299404568402
+#define LOVE_M_PI       3.14159265358979323846
+#define LOVE_M_PI_2     1.57079632679489661923
+#define LOVE_M_PI_4     0.785398163397448309616
+#define LOVE_M_1_PI     0.318309886183790671538
+#define LOVE_M_2_PI     0.636619772367581343076
+#define LOVE_M_2_SQRTPI 1.12837916709551257390
+#define LOVE_M_SQRT2    1.41421356237309504880
+#define LOVE_M_SQRT1_2  0.707106781186547524401
+#define LOVE_M_TORAD	   (float)(LOVE_M_PI/180.0)
+#define LOVE_M_TODEG    (float)(180.0/LOVE_M_PI)
+#define LOVE_TORAD(x)	(float)(x*LOVE_M_TORAD)
+#define LOVE_TODEG(x)	(float)(x*LOVE_M_TODEG)
+
+namespace love
+{
+
+struct vertex
+{
+	unsigned char r, g, b, a;
+	float x, y;
+	float s, t;
+};
+
+} // love
+
+#endif // LOVE_MATH_H