ef_random.h

#ifndef NW4R_EF_RANDOM_H
#define NW4R_EF_RANDOM_H
#include <nw4r/types_nw4r.h>
 
namespace nw4r {
namespace ef {
 
class Random {
private:
    ulong mSeed; // at 0x0
 
public:
    void Srand(ulong seed) {
        mSeed = seed;
    }
 
    int Rand() {
        MixRandomSeed();
        return static_cast<int>(mSeed >> 16);
    }
 
    f32 RandFloat() {
        MixRandomSeed();
        return static_cast<f32>(mSeed >> 16) / 0x10000;
    }
 
private:
    void MixRandomSeed() {
        mSeed = mSeed * 0x343FD + 0x269EC3;
    }
};
 
} // namespace ef
} // namespace nw4r
 
#endif