private void UpdateTouches()
{
if (input == null || input.TouchCount() == 0)
{
return;
}
if (input.TouchCount() == 1)
{
TouchInfo touchInfo = input.GetTouch(0);
if (currentTouch.GestureType == GestureType.None)
{
actionStartTime = Time.realtimeSinceStartup;
}
touchInfo.StartTime = actionStartTime;
if (touchInfo.Phase == TouchPhase.Began)
{
Touch touch = new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.None,
SwipeDirection = SwipeDirection.None,
SwipeLength = 0,
SwipeVector = Vector2.zero
};
currentTouch = touch;
OnTouchStart?.Invoke(touch);
}
if (touchInfo.Phase == TouchPhase.Moved)
{
OnTouch?.Invoke(new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.None,
});
if (touchInfo.PositionDelta.magnitude >= settings.GetSwipeLengthInPixels())
{
Touch touch = new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.Swipe,
SwipeDirection = GetSwipeDirection(touchInfo.Position - touchInfo.PositionDelta, touchInfo.Position),
SwipeLength = touchInfo.PositionDelta.magnitude,
SwipeVector = touchInfo.PositionDelta
};
switch (currentTouch.GestureType)
{
case GestureType.None:
OnSwipeStart?.Invoke(touch);
break;
case GestureType.Swipe:
OnSwipe?.Invoke(touch);
break;
}
currentTouch = touch;
return;
}
}
if (touchInfo.Phase == TouchPhase.Stationary)
{
OnTouch?.Invoke(new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.None,
});
touchInfo.ActionTime = Time.realtimeSinceStartup - touchInfo.StartTime;
currentTouch = new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.Tap,
SwipeDirection = SwipeDirection.None,
SwipeLength = 0,
SwipeVector = Vector2.zero
};
}
if (touchInfo.Phase == TouchPhase.Ended)
{
OnTouchEnd?.Invoke(new Touch
{
TouchInfo = touchInfo,
GestureType = GestureType.None,
});
switch (currentTouch.GestureType)
{
case GestureType.Swipe:
OnSwipeEnd?.Invoke(currentTouch);
break;
case GestureType.Tap when currentTouch.TouchInfo.ActionTime <= settings.TapTime:
OnTap?.Invoke(currentTouch);
break;
}
}
}
if (input.TouchCount() == 2)
{
TouchInfo touch0 = input.GetTouch(0);
TouchInfo touch1 = input.GetTouch(1);
if (currentTouch.GestureType == GestureType.None)
{
actionStartTime = Time.realtimeSinceStartup;
}
touch0.StartTime = actionStartTime;
if (touch0.Phase == TouchPhase.Began || touch1.Phase == TouchPhase.Began)
{
Pinch pinch = new Pinch
{
TouchInfos = new [] { touch0, touch1 },
GestureType = GestureType.None,
PinchVector = touch0.Position - touch1.Position
};
currentPinch = pinch;
OnPinchStart?.Invoke(currentPinch);
}
if (touch0.Phase != TouchPhase.Stationary ||
touch0.Phase == TouchPhase.Moved ||
touch1.Phase != TouchPhase.Stationary ||
touch1.Phase == TouchPhase.Moved)
{
Pinch pinch = new Pinch
{
TouchInfos = new [] { touch0, touch1 },
GestureType = GestureType.Pinch,
PinchVector = touch0.Position - touch1.Position
};
currentPinch = pinch;
OnPinch?.Invoke(currentPinch);
}
if (touch0.Phase == TouchPhase.Ended || touch1.Phase == TouchPhase.Ended)
{
Pinch pinch = new Pinch
{
TouchInfos = new [] { touch0, touch1 },
GestureType = GestureType.Pinch,
PinchVector = touch0.Position - touch1.Position
};
currentPinch = pinch;
OnPinchEnd?.Invoke(currentPinch);
}
}
}
public void SwipeStart(Swipe swipe) => OnSwipeStart?.Invoke(swipe);