Init core

hash.h

@@ -0,0 +1,33 @@
+#ifndef HASH_HEADER
+#define HASH_HEADER
+#include <stdint.h>
+
+#ifndef HASH_API_FUNCTION
+    #ifdef __cplusplus
+        #define HASH_API_FUNCTION extern "C"
+    #else
+        #define HASH_API_FUNCTION
+    #endif
+#endif
+
+//@begin gen_structs
+typedef struct RandomSeed RandomSeed;
+//@end gen_structs
+
+struct RandomSeed {
+    uint64_t a;
+};
+
+//@begin gen_api_funcs
+HASH_API_FUNCTION uint64_t        HashBytes(void *data, uint64_t size);
+HASH_API_FUNCTION RandomSeed      MakeRandomSeed(uint64_t value);
+HASH_API_FUNCTION uint64_t        GetRandomU64(RandomSeed *state);
+HASH_API_FUNCTION int             GetRandomRangeI(RandomSeed *seed, int first, int last_included);
+HASH_API_FUNCTION double          GetRandomNormal(RandomSeed *series);
+HASH_API_FUNCTION double          GetRandomNormalRange(RandomSeed *seed, double min, double max);
+HASH_API_FUNCTION uint64_t        HashMix(uint64_t x, uint64_t y);
+//@end gen_api_funcs
+
+#define WRAP_AROUND_POWER_OF_2(x, pow2) (((x) & ((pow2)-1llu)))
+static inline float GetRandomNormalF(RandomSeed *series) { return (float)GetRandomNormal(series); }
+#endif