pauses

if(hit.transform.name == "pause") {
	if (playing == 1) Pause();
	else if (playing == 0) Unpause();
}

or

if(hit.transform.name == "pause") {
	switch (playing) {
		case 1:
			Pause();
		break;
		case 2:
			Unpause();
		break;
	}
}