/// <summary>
/// Gets the zoom speed based on player input
/// </summary>
/// <returns>The speed the camera should zoom in/out during the next frame, may be 0</returns>
private float Scroll()
{
if (_zoomCamera.activeControl != null && _zoomCamera.activeControl.device == Mouse.current)
{
return(_zoomCamera.ReadValue <float>() * scrollSpeed);
}
if (Touch.activeFingers.Count != 2)
{
return(0f);
}
Touch touchZero = Touch.activeTouches[0];
Touch touchOne = Touch.activeTouches[1];
// Find the position in the previous frame of each touch.
Vector2 touchZeroPrevPos = touchZero.screenPosition - touchZero.delta;
Vector2 touchOnePrevPos = touchOne.screenPosition - touchOne.delta;
// Find the magnitude of the vector (the distance) between the touches in each frame.
float prevTouchDeltaMag = (touchZeroPrevPos - touchOnePrevPos).magnitude;
float touchDeltaMag = (touchZero.screenPosition - touchOne.screenPosition).magnitude;
// var touchZeroDeltaMag = Touch.activeTouches[0].delta.magnitude;
// var touchOneDeltaMag = Touch.activeTouches[1].delta.magnitude;
// Find the difference in the distances between each frame.
return((touchDeltaMag - prevTouchDeltaMag) * pinchSpeed);
}
public void ValidateInput()
{
for (int i = 0; i < _currentInputCount; i++)
{
bool valid = true;
//If touch, check event is still active?
if (_activeDragInputs[i]._touchId != 0)
{
//Check touch is still active
Touch touch = GetTouch(_activeDragInputs[i]._touchId);
valid = touch.valid && touch.phase != TouchPhase.None && touch.phase != TouchPhase.Canceled;
}
//Check touch is still active
if (!valid)
{
//Remove touch
for (int j = i; j < _currentInputCount - 1; j++)
{
_activeDragInputs[j] = _activeDragInputs[j + 1];
}
_currentInputCount--;
}
}
}
