1 files changed, 23 insertions, 0 deletions
diff --git a/include/rand.h b/include/rand.h
new file mode 100644
index 000000000..01e6efe2e
--- /dev/null
+++ b/include/rand.h
@@ -0,0 +1,23 @@
+#ifndef RAND_H
+#define RAND_H
+
+#include "PR/ultratypes.h"
+
+//! These values are recommended by the algorithms book *Numerical Recipes in C. The Art of Scientific Computing*, 2nd
+//! Edition, 1992, ISBN 0-521-43108-5. (p. 284):
+//! > This is about as good as any 32-bit linear congruential generator, entirely adequate for many uses.
+#define RAND_MULTIPLIER 1664525
+#define RAND_INCREMENT 1013904223
+
+u32 Rand_Next(void);
+void Rand_Seed(u32 seed);
+f32 Rand_ZeroOne(void);
+f32 Rand_Centered(void);
+void Rand_Seed_Variable(u32* rndNum, u32 seed);
+u32 Rand_Next_Variable(u32* rndNum);
+f32 Rand_ZeroOne_Variable(u32* rndNum);
+f32 Rand_Centered_Variable(u32* rndNum);
+
+extern u32 gRandFloat;
+
+#endif
+\ No newline at end of file