Function Tools_Random_256

src/tools.c:239–253

* Get a random value between 0 and 255. * * @return The random value. */

 * @return The random value.
 */
uint8 Tools_Random_256(void)
{
	uint16 val16;
	uint8 val8;

	val16 = (s_randomSeed[1] << 8) | s_randomSeed[2];
	val8 = ((val16 ^ 0x8000) >> 15) & 1;
	val16 = (val16 << 1) | ((s_randomSeed[0] >> 1) & 1);
	val8 = (s_randomSeed[0] >> 2) - s_randomSeed[0] - val8;
	s_randomSeed[0] = (val8 << 7) | (s_randomSeed[0] >> 1);
	s_randomSeed[1] = val16 >> 8;
	s_randomSeed[2] = val16 & 0xFF;

	return s_randomSeed[0] ^ s_randomSeed[1];
}

/**
 * Set the seed for the Tools_Random_256().