#include "../rng.h"
#include "./generator.h"
#include <cstdint>
#include "./xorshift.h"
// parameters recommended by Nakazawa & Nakazawa
// https://en.wikipedia.org/wiki/Lehmer_random_number_generator

namespace splat {

  xorshift32_generator::xorshift32_generator(uint32_t genSeed) : PRNG(genSeed) {
    state = genSeed;
  }
  u_int32_t xorshift32_generator::generate() {
    state ^= state << 13;
    state ^= state >> 17;
    state ^= state << 5;
    return state;
  }
  std::string xorshift32_generator::getName() {
    return "xorshift32";
  }
}