mirror of
https://github.com/encounter/ph.git
synced 2026-03-30 11:34:37 -07:00
23 lines
456 B
C++
23 lines
456 B
C++
#pragma once
|
|
|
|
#include "global.h"
|
|
#include "types.h"
|
|
|
|
struct Random {
|
|
/* 00 */ u64 mRandomValue;
|
|
/* 08 */ u64 mFactor;
|
|
/* 10 */ u64 mAddend;
|
|
/* 18 */
|
|
|
|
/**
|
|
* Generate a random number from 0 (inclusive) to `max` (exclusive)
|
|
*/
|
|
inline u32 Next(u32 max) {
|
|
mRandomValue = mAddend + mFactor * mRandomValue;
|
|
u64 result = (mRandomValue >> 32) * max;
|
|
return result >> 32;
|
|
}
|
|
};
|
|
|
|
extern Random gRandom;
|