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27 lines
669 B
C
27 lines
669 B
C
#ifndef GUARD_RANDOM_H
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#define GUARD_RANDOM_H
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#include "global.h"
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extern u32 gRngValue;
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extern u32 gRng2Value;
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//Returns a 16-bit pseudorandom number
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u16 Random(void);
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u16 Random2(void);
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//Returns a 32-bit pseudorandom number
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#define Random32() (Random() | (Random() << 16))
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// The number 1103515245 comes from the example implementation of rand and srand
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// in the ISO C standard.
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#define RAND_MULT 1103515245
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#define ISO_RANDOMIZE1(val)(RAND_MULT * (val) + 24691)
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#define ISO_RANDOMIZE2(val)(RAND_MULT * (val) + 12345)
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//Sets the initial seed value of the pseudorandom number generator
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void SeedRng(u16 seed);
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void SeedRng2(u16 seed);
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#endif // GUARD_RANDOM_H
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