Add beast_basics module

modules/beast_basics/math/beast_Math.h

@@ -0,0 +1,97 @@
+/*============================================================================*/
+/*
+  VFLib: https://github.com/vinniefalco/VFLib
+
+  Copyright (C) 2008 by Vinnie Falco <vinnie.falco@gmail.com>
+
+  This library contains portions of other open source products covered by
+  separate licenses. Please see the corresponding source files for specific
+  terms.
+
+  VFLib is provided under the terms of The MIT License (MIT):
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+  IN THE SOFTWARE.
+*/
+/*============================================================================*/
+
+#ifndef BEAST_MATH_BEASTHEADER
+#define BEAST_MATH_BEASTHEADER
+
+//
+// Miscellaneous mathematical calculations
+//
+
+// Calculate the bin for a value given the bin size.
+// This correctly handles negative numbers. For example
+// if value == -1 then calc_bin returns -1.
+template <typename Ty>
+inline Ty calc_bin (Ty value, int size)
+{
+    if (value >= 0)
+        return value / size;
+    else
+        return (value - size + 1) / size;
+}
+
+// Given a number and a bin size, this returns the first
+// corresponding value of the bin associated with the given number.
+// It correctly handles negative numbers. For example,
+// if value == -1 then calc_bin always returns -size
+template <typename Ty>
+inline Ty calc_bin_start (Ty value, int size)
+{
+    return calc_bin (value, size) * size;
+}
+
+template <class T>
+inline T pi () noexcept
+{
+    return 3.14159265358979;
+}
+
+template <class T>
+inline T twoPi () noexcept
+{
+    return 6.28318530717958;
+}
+
+template <class T>
+inline T oneOverTwoPi () noexcept
+{
+    return 0.1591549430918955;
+}
+
+template <class T, class U>
+inline T degreesToRadians (U degrees)
+{
+    return T (degrees * 0.0174532925199433);
+}
+
+template <class T, class U>
+inline T radiansToDegrees (U radians)
+{
+    T deg = T (radians * U (57.29577951308238));
+
+    if (deg < 0)
+        deg += 360;
+
+    return deg;
+}
+
+#endif