public static void SubLeafs(AnswerLeafs answerLeafs, ValueLeafs valueLeafs)
{
for (int i = 0; i < 4; i++)
{
answerLeafs.nums[i] -= valueLeafs.nums[i];
}
}
private void OnTriggerExit2D(Collider2D other) {
if (other.GetComponent<AnswerLeafs> () == targetAnswer) {
targetAnswer = null;
}
}
private void OnTriggerEnter2D(Collider2D other) {
if (targetAnswer==null) {
targetAnswer = other.GetComponent<AnswerLeafs> ();
}
}
