/// <summary>Gets the pinch ratio of the fingers (reciprocal of pinch scale).</summary>
public static bool TryGetPinchRatio(List <LeanFinger> fingers, Vector2 center, Vector2 lastCenter, ref float ratio, float wheelSensitivity = 0.0f)
{
var distance = GetScreenDistance(fingers, center);
var lastDistance = GetLastScreenDistance(fingers, lastCenter);
if (distance > 0.0f)
{
ratio = lastDistance / distance;
return(true);
}
if (wheelSensitivity != 0.0f)
{
var scroll = LeanInput.GetMouseWheelDelta();
if (scroll > 0.0f)
{
ratio = 1.0f + wheelSensitivity; return(true);
}
if (scroll < 0.0f)
{
ratio = 1.0f - wheelSensitivity; return(true);
}
}
return(false);
}
protected virtual void Update()
{
if (RequiredSelectable != null && RequiredSelectable.IsSelected == false)
{
return;
}
if (RequiredMouseButton >= 0 && LeanInput.GetMousePressed(RequiredMouseButton) == false)
{
return;
}
var finalDelta = LeanInput.GetMouseWheelDelta();
if (finalDelta == 0.0f)
{
return;
}
switch (Modify)
{
case ModifyType.Sign:
{
finalDelta = Mathf.Sign(finalDelta);
}
break;
}
finalDelta *= Multiplier;
switch (Coordinate)
{
case CoordinateType.OneBased:
{
finalDelta += 1.0f;
}
break;
}
if (onDelta != null)
{
onDelta.Invoke(finalDelta);
}
}