20 lines
417 B
C
20 lines
417 B
C
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#include "./xorshift.h"
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#include <stddef.h>
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#include <stdint.h>
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uint64_t chaos_xorshift(uint64_t seed) {
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seed = seed ^ (seed << 13);
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seed = seed ^ (seed >> 7);
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return seed ^ (seed << 17);
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}
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float chaos_xorshift_fract(uint64_t seed, uint64_t* next_seed) {
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static const uint64_t period = 10000;
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seed = chaos_xorshift(seed);
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if (next_seed != NULL) *next_seed = seed;
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return seed%period*1.f/period;
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}
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