void Update()
{
if (Input.touchCount > 0)
{
foreach (Touch touch in Input.touches)
{
Vector2 touchPos = cam.ScreenToWorldPoint(touch.position);
Vector2 localTouchPos = touchPos - (Vector2)transform.position;
if (touchState == TouchState.IDLE && touch.phase == TouchPhase.Began)
{
// Touch starting
fingerId = touch.fingerId;
localStartPos = localTouchPos;
Arrow touchingArrow = movement.arrows
.FirstOrDefault(arrow => arrow.GetComponent <Collider2D>().OverlapPoint(touchPos));
if (fireTrigger.OverlapPoint(touchPos))
{
touchState = TouchState.FIRING;
}
else if (turnTrigger.OverlapPoint(touchPos))
{
touchState = TouchState.TURNING;
cannon.StartTurn(localTouchPos);
}
else if (touchingArrow != null || moveTrigger.OverlapPoint(touchPos))
{
touchState = TouchState.MOVING;
movement.StartMove(localTouchPos, touchingArrow);
}
}
else if (touchState != TouchState.IDLE && touch.fingerId == fingerId)
{
if (touch.phase != TouchPhase.Ended)
{
// Touch continuing
if (touchState == TouchState.FIRING)
{
// If the player hits fire then moves their finger a certain amount,
// start treating the touch as a move instead of a fire.
if (Vector2.Distance(localTouchPos, localStartPos) >= moveThreshold)
{
touchState = TouchState.MOVING;
movement.ContinueMove(localTouchPos, localStartPos);
}
}
else if (touchState == TouchState.TURNING)
{
cannon.ContinueTurn(localTouchPos);
}
else if (touchState == TouchState.MOVING)
{
movement.ContinueMove(localTouchPos, localStartPos);
}
}
else
{
// Touch ending
if (touchState == TouchState.FIRING)
{
cannon.Fire();
}
else if (touchState == TouchState.TURNING)
{
cannon.EndTurn();
}
else if (touchState == TouchState.MOVING)
{
movement.EndMove();
}
touchState = TouchState.IDLE;
fingerId = -1;
}
}
}
}
}
