Changeset 871 for code/trunk/src/util/Math.h

Timestamp:

Mar 9, 2008, 4:44:36 PM (17 years ago)

Author:

landauf

Message:

merged core branch to trunk

File:

• code/trunk/src/util/Math.h (modified) (2 diffs)

code/trunk/src/util/Math.h

@@ +1 @@
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *
+ *
+ *   License notice:
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Fabian 'x3n' Landau
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+#ifndef _Math_H__
+#define _Math_H__
+
+#include <ostream>
+
+#include "UtilPrereqs.h"
+
 #include <OgreMath.h>
 #include <OgreVector2.h>
@@ -18 +52 @@
   typedef Ogre::ColourValue ColourValue;
 }
+
+_UtilExport std::ostream& operator<<(std::ostream& out, const orxonox::Radian& radian);
+_UtilExport std::istream& operator>>(std::istream& in, orxonox::Radian& radian);
+_UtilExport std::ostream& operator<<(std::ostream& out, const orxonox::Degree& degree);
+_UtilExport std::istream& operator>>(std::istream& in, orxonox::Degree& degree);
+
+template <typename T>
+inline T sgn(T x)
+{
+    return (x >= 0) ? 1 : -1;
+}
+
+template <typename T>
+inline T min(T a, T b)
+{
+    return (a <= b) ? a : b;
+}
+
+template <typename T>
+inline T max(T a, T b)
+{
+    return (a >= b) ? a : b;
+}
+
+template <typename T>
+inline T clamp(T x, T min, T max)
+{
+    if (x < min)
+        return min;
+
+    if (x > max)
+        return max;
+
+    return x;
+}
+
+template <typename T>
+inline T square(T x)
+{
+    return x*x;
+}
+
+template <typename T>
+inline T cube(T x)
+{
+    return x*x*x;
+}
+
+template <typename T>
+inline int floor(T x)
+{
+    return (int)(x);
+}
+
+template <typename T>
+inline int ceil(T x)
+{
+    int temp = floor(x);
+    return (temp != x) ? (temp + 1) : temp;
+}
+
+template <typename T>
+inline int round(T x)
+{
+    return (int)(x + 0.5);
+}
+
+template <typename T>
+T interpolate(float time, const T& start, const T& end)
+{
+    return time * (end - start) + start;
+}
+
+template <typename T>
+T interpolateSmooth(float time, const T& start, const T& end)
+{
+    return (-2 * (end - start) * cube(time)) + (3 * (end - start) * square(time)) + start;
+}
+
+inline _UtilExport float rnd()
+{
+    return ((float)rand() / RAND_MAX);
+}
+
+inline _UtilExport float rnd(float max)
+{
+    return rnd() * max;
+}
+
+inline _UtilExport float rnd(float min, float max)
+{
+    return rnd(max - min) + min;
+}
+
+#endif /* _Math_H__ */