#define RANDOM (random = random << 31 | random >> 1)
#define PLAY(sample) { if ((unsigned int)(y - top) <= 12 && (unsigned int)(x - left) <= 20) play[sample] = 1; }
#define RANDOM (random = random << 31 | random >> 1)
#define PLAY(sample) { if ((unsigned int)(y - top) <= 12 && (unsigned int)(x - left) <= 20) play[sample] = 1; }