if (Event.current.button == 0 && Event.current.type == EventType.MouseDown) {
	Debug.Log ("MOUSE DOWN!");
}

if (Event.current.button == 0 && Event.current.type == EventType.mouseDown) {
	Debug.Log ("mOUSE DOWN!");
}

if (Event.current.button == 0 && Event.current.type == EventType.MouseUp) {
	Debug.Log ("MOUSE Up!");
}

if (Event.current.button == 0 && Event.current.type == EventType.mouseUp) {
	Debug.Log ("mOUSE DOWN!");
}
if (Event.current.type == EventType.MouseDown) {
	Debug.Log ("only MOUSE DOWN!");
}

if (Event.current.type == EventType.mouseDown) {
	Debug.Log ("only mOUSE DOWN!");
}

if (Event.current.type == EventType.MouseUp) {
	Debug.Log ("only MOUSE Up!");
}

if (Event.current.type == EventType.mouseUp) {
	Debug.Log ("only mOUSE DOWN!");
}

//	THE ONLY ONE THAT WORKS
if (Event.current.button == 0) {
	Debug.Log ("MOUSE CLICK!");
}