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| author | Wilrik de Loose <wilrik@wilrik.nl> | 2007-12-14 08:35:25 (GMT) |
|---|---|---|
| committer | Wilrik de Loose <wilrik@wilrik.nl> | 2007-12-14 08:35:25 (GMT) |
| commit | 5601182e9456b3d4d782f135c8b151f5d9b021cd (patch) | |
| tree | fe9e06a8a0f572dad622e8887732796a725887fe /Smoke/funcs.c | |
| parent | 2b49eb5eb684537c19d9f0eabdffad0ffcf196ac (diff) | |
| download | 2iv35-5601182e9456b3d4d782f135c8b151f5d9b021cd.zip 2iv35-5601182e9456b3d4d782f135c8b151f5d9b021cd.tar.gz 2iv35-5601182e9456b3d4d782f135c8b151f5d9b021cd.tar.bz2 | |
glyphs apart in een file gestopt
Diffstat (limited to 'Smoke/funcs.c')
| -rw-r--r-- | Smoke/funcs.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Smoke/funcs.c b/Smoke/funcs.c new file mode 100644 index 0000000..eb8cc2d --- /dev/null +++ b/Smoke/funcs.c @@ -0,0 +1,29 @@ +// Includes
+
+#ifdef G_OS_WIN32
+#define WIN32_LEAN_AND_MEAN 1
+#include <windows.h>
+#endif
+
+#include "funcs.h"
+
+float square_root(float number)
+{
+ long i;
+ float x, y;
+ const float f = 1.5f;
+
+ x = number * 0.5f;
+ y = number;
+ i = * ( long * ) &y;
+ i = 0x5f3759df - ( i >> 1 );
+ y = * ( float * ) &i;
+ y = y * ( f - ( x * y * y ) );
+ y = y * ( f - ( x * y * y ) );
+ return number * y;
+}
+
+float vec_len(float x, float y)
+{
+ return (square_root((x * x) + (y * y)));
+}
\ No newline at end of file |