37 lines
771 B
C
37 lines
771 B
C
/*
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* Copyright 2014 (c) Anna Schumaker
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*/
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#ifndef OCARINA_CORE_RANDOM_H
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#define OCARINA_CORE_RANDOM_H
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#ifdef CONFIG_TESTING
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void _seed_random(unsigned int);
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unsigned int _pick_random();
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#else /* CONFIG_TESTING */
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#include <stdlib.h>
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static inline void _seed_random(unsigned int n) { srand(time(NULL) + n); }
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static inline unsigned int _pick_random() { return rand(); }
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#endif /* CONFIG_TESTING */
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/* Seed the random number generator. */
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static inline void random_seed(unsigned int n)
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{
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_seed_random(n);
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}
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/* Returns a random number X, where min <= value <= max. */
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static inline unsigned int random_range(unsigned int min, unsigned int max)
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{
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if (min >= max)
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return min;
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return min + (_pick_random() % (max - min));
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}
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#endif /* OCARINA_CORE_RANDOM_H */
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