void Update()
{
if (Input.touchCount != 1) // user is touching the screen with a single touch
{
Horizontal = 0;
Vertical = 0;
//if(Input.touchCount == 4)
//{
// OnSwipeHappened?.Invoke(InputAction.Debug);
//}
return;
}
Touch touch = Input.GetTouch(0); // get the touch
switch (touch.phase)
{
case TouchPhase.Began:
fp = touch.position;
lp = touch.position;
alreadyTriggeredThisSwipe = false;
initialTime = Time.time;
break;
case TouchPhase.Moved:
lp = touch.position;
//Check if drag distance is greater than 20% of the screen height
if (Mathf.Abs(lp.x - fp.x) > dragDistance || Mathf.Abs(lp.y - fp.y) > dragDistance)
{
//It's a drag
//check if the drag is vertical or horizontal
if (Mathf.Abs(lp.x - fp.x) > Mathf.Abs(lp.y - fp.y))
{
//if((lp.x > fp.x))
//{
// if(!alreadyTriggeredThisSwipe)
// {
// //Right swipe
// print("Swipe right");
// OnSwipeHappened?.Invoke(InputAction.Right);
// alreadyTriggeredThisSwipe = true;
// }
//}
//else
//{
// if(!alreadyTriggeredThisSwipe)
// {
// //Left swipe
// print("Left");
// alreadyTriggeredThisSwipe = true;
// OnSwipeHappened?.Invoke(InputAction.Left);
// }
//}
//Horizontal = Mathf.Clamp(lp.x - fp.x, -1, 1);
}
else
{ //the vertical movement is greater than the horizontal movement
if (lp.y > fp.y) //If the movement was up
{ //Up swipe
if (!alreadyTriggeredThisSwipe)
{
print("Up");
OnSwipeHappened?.Invoke(InputAction.Up);
alreadyTriggeredThisSwipe = true;
}
}
else
{ //Down swipe
if (!alreadyTriggeredThisSwipe)
{
print("DOWN!");
OnSwipeHappened?.Invoke(InputAction.Down);
alreadyTriggeredThisSwipe = true;
}
}
Vertical = Mathf.Clamp(lp.y - fp.y, -1, 1);
}
}
break;
case TouchPhase.Stationary:
if (Time.time - initialTime > maxTime)
{
if (!alreadyTriggeredThisSwipe)
{
OnSwipeHappened?.Invoke(InputAction.Pressed);
Horizontal = fp.x > Screen.width / 2 ? 1 : -1;
alreadyTriggeredThisSwipe = true;
}
}
break;
case TouchPhase.Ended:
if (Mathf.Abs(lp.x - fp.x) < dragDistance || Mathf.Abs(lp.y - fp.y) < dragDistance)
{
if (Time.time - initialTime < maxTime)
{
if (!alreadyTriggeredThisSwipe)
{
//print("TAP");
alreadyTriggeredThisSwipe = true;
OnSwipeHappened?.Invoke(InputAction.Tap);
}
}
}
OnFingerUp?.Invoke();
Horizontal = 0;
Vertical = 0;
break;
}
}
private float dragDistance; //minimum distance for a swipe to be registered
public void InvokeSwipeHappened(InputAction direction) => OnSwipeHappened?.Invoke(direction);
