public static void DrawLine(Vector3 from, Vector3 to, DrawLineConfig config)
{
switch (config)
{
case DrawLineConfig.Shown:
Handles.DrawLine(from, to); break;
case DrawLineConfig.SymmetricShown:
Handles.DrawLine(2 * from - to, to); break;
case DrawLineConfig.ShownDotted:
Handles.DrawDottedLine(from, to, 3f); break;
case DrawLineConfig.SymmetricShownDotted:
Handles.DrawDottedLine(2 * from - to, to, 3f); break;
}
}
public static float DistanceDragHandle(float distance, Vector3 position, Vector3 direction, int controlID, GUIContent label, float size = 0.15f, float snap = 0, GUIStyle labelStyle = null, DrawLineConfig lineConfigWhenNear = DrawLineConfig.Shown, DrawLineConfig lineConfigWhenNotNear = DrawLineConfig.ShownDotted)
{
var handlePos = position + direction * distance; // TODO: normalize direction?
switch (Event.current.type)
{
case EventType.Repaint:
if (HandleUtility.nearestControl == controlID)
{
DrawLine(position, handlePos, lineConfigWhenNear);
}
else
{
DrawLine(position, handlePos, lineConfigWhenNotNear);
}
if (label != null)
{
if (labelStyle == null)
{
labelStyle = GetDefaultHandleLabelStyle();
}
if (HandleUtility.nearestControl == controlID)
{
Handles.Label(handlePos - new Vector3(size, size * 1.25f, 0), label, labelStyle);
}
}
break;
}
var newHandle = Handles.FreeMoveHandle(controlID, handlePos, Quaternion.identity, size, new Vector3(snap, snap, snap), Handles.CubeHandleCap);
GUI.changed = false;
if (newHandle != handlePos)
{
var newDif = newHandle - position;
// var oldDif = handlePos - position;
// newHandle = * direction + position;
GUI.changed = true;
var newDis = Vector3.Dot(newDif, direction); // ?
return(newDis);
}
return(distance);
}
