void Update()
{
if (target)
{
if (!fingers)
{
if (Input.touchCount >= 2)
{
fingers = true;
finger1 = Input.GetTouch(0).position;
finger2 = Input.GetTouch(1).position;
}
}
else
{
if (Input.touchCount < 2)
{
fingers = false;
}
else
{
Vector2 newFinger1 = Input.GetTouch(0).position;
Vector2 newFinger2 = Input.GetTouch(1).position;
Vector2 dNewFinger = newFinger1 - newFinger2;
Vector2 dLastFinger = finger1 - finger2;
// scale
float lastDist = dLastFinger.magnitude;
float newDist = dNewFinger.magnitude;
float dDist = newDist - lastDist;
float scale = target.localScale.x + dDist / 1000 * scaleSpeed;
scale = Mathf.Clamp(scale, scaleMin, scaleMax);
target.localScale = scale * Vector3.one;
// rotation
float lastAngle = Tool.Angle(dLastFinger);
float newAngle = Tool.Angle(dNewFinger);
float rot = newAngle - lastAngle;
target.Rotate(0, rot * rotSpeed, 0);
finger1 = newFinger1;
finger2 = newFinger2;
}
}
}
}