Split math functions; beginning of common structures

1 files changed, 28 insertions, 0 deletions

diff --git a/src/math/const.h b/src/math/const.h
new file mode 100644
index 0000000..9e4504f
--- /dev/null
+++ b/src/math/const.h
@@ -0,0 +1,28 @@
+// math/const.h
+
+/* Math constants */
+
+#pragma once
+
+// Math module namespace
+namespace Math
+{
+  //! Tolerance level -- minimum accepted float value
+  const float TOLERANCE = 1e-6f;
+
+  //! PI
+  const float PI = 3.14159265358979323846f;
+  //! 2 * PI
+  const float PI_MUL_2 = 6.28318530717958623200f;
+  //! PI / 2
+  const float PI_DIV_2 = 1.57079632679489655800f;
+  //! PI / 4
+  const float PI_DIV_4 = 0.78539816339744827900f;
+  //! 1 / PI
+  const float INV_PI   = 0.31830988618379069122f;
+
+  //! Degrees to radians multiplier
+  const float DEG_TO_RAD =  0.01745329251994329547f;
+  //! Radians to degrees multiplier
+  const FLOAT RAD_TO_DEG = 57.29577951308232286465f;
+};