private static void DrawLimitSlider(SliderJoint2D sliderJoint2D, int limitControlID, Vector2 anchorPosition,
Vector2 direction, IEnumerable <Vector2> snapList, Limit limit)
{
EditorGUI.BeginChangeCheck();
float val;
var limits2D = sliderJoint2D.limits;
switch (limit)
{
case Limit.Min:
val = limits2D.min;
break;
case Limit.Max:
val = limits2D.max;
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
var newLimit = EditorHelpers.LineSlider(limitControlID, anchorPosition,
val,
Helpers2D.GetAngle(direction), 0.125f, false, limit == Limit.Min);
if (!EditorGUI.EndChangeCheck())
{
return;
}
if (snapList != null)
{
var limitSnapList = new List <Vector2>(snapList);
switch (limit)
{
case Limit.Min:
limitSnapList.Add(anchorPosition + direction * limits2D.max);
break;
case Limit.Max:
limitSnapList.Add(anchorPosition + direction * limits2D.min);
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
var limitGUIPosition =
HandleUtility.WorldToGUIPoint(anchorPosition + direction * newLimit);
foreach (
var snapPosition in
from snapPosition in limitSnapList
let snapGUIPosition = HandleUtility.WorldToGUIPoint(snapPosition)
where Vector2.Distance(limitGUIPosition, snapGUIPosition) < 10
select snapPosition)
{
newLimit = Helpers2D.DistanceAlongLine(new Ray(anchorPosition, direction),
snapPosition);
}
}
EditorHelpers.RecordUndo("Change slider limit", sliderJoint2D);
switch (limit)
{
case Limit.Min:
limits2D.min = newLimit;
break;
case Limit.Max:
limits2D.max = newLimit;
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
sliderJoint2D.limits = limits2D;
}