public static void Init()
{
for (int i = 0; i < MaxTouchCount; i++)
{
m_touches[i] = new Ssg.Touch();
}
}
private void OnPointerDown(PointerEventData eventData)
{
m_touches.RemoveAll((t) => { return(t.Id == eventData.pointerId); });
var touch = new Ssg.Touch();
touch.Id = eventData.pointerId;
touch.Position = eventData.position;
m_touches.Add(touch);
}
private float CalculatePinchDelta(Ssg.Touch touch0, Ssg.Touch touch1)
{
var t0OldPos = touch0.Position - touch0.Delta;
var t1OldPos = touch1.Position - touch1.Delta;
var oldDistance = (t0OldPos - t1OldPos).magnitude;
var newDistance = (touch0.Position - touch1.Position).magnitude;
if (oldDistance == 0)
{
return(1.0f);
}
return(newDistance / oldDistance);
}