public void Translation(Vector2 offset)
{
if (utils.PositionInView(Input.mousePosition) && offset != Vector2.zero)
{
viewer.Translate(new Vector2D(offset.x, offset.y));
}
}
public override void OnButton()
{
var dis = new Vector3(originalPos.x, originalPos.y, 0) - Input.mousePosition;
viewer.Translate(new Vector2D(dis.x, dis.y));
originalPos = Input.mousePosition;
}