X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fgraphics%2Fconst.h;fp=src%2Fgraphics%2Fconst.h;h=64175da0fecbce8db581cea55022f99f045e973b;hb=ffd31714f3edb64ebe16b65878750c6cc5c7e884;hp=0000000000000000000000000000000000000000;hpb=699437a474de8b87ccb6749d44adf740e680d620;p=space.git

diff --git a/src/graphics/const.h b/src/graphics/const.h
new file mode 100644
index 0000000..64175da
--- /dev/null
+++ b/src/graphics/const.h
@@ -0,0 +1,17 @@
+#ifndef SPACE_CONST_H_
+#define SPACE_CONST_H_
+
+namespace space {
+
+// this is so very darn long so it can easily be changed to double
+constexpr float PI = 3.141592653589793238462643383279502884;
+constexpr float PI2 = 2 * PI;
+
+template<class T>
+constexpr int sigma(T v) {
+	return v > 0 ? 1 : (v < 0 ? -1 : 0);
+}
+
+}
+
+#endif