/// <summary>
/// OnSceneGUI, draws repositionable handles at every point in the path, for easier setup
/// </summary>
protected virtual void OnSceneGUI()
{
Handles.color = Color.green;
MMPath t = (target as MMPath);
if (t.GetOriginalTransformPositionStatus() == false)
{
return;
}
for (int i = 0; i < t.PathElements.Count; i++)
{
EditorGUI.BeginChangeCheck();
Vector3 oldPoint = t.GetOriginalTransformPosition() + t.PathElements[i].PathElementPosition;
GUIStyle style = new GUIStyle();
// draws the path item number
style.normal.textColor = Color.yellow;
Handles.Label(t.GetOriginalTransformPosition() + t.PathElements[i].PathElementPosition + (Vector3.down * 0.4f) + (Vector3.right * 0.4f), "" + i, style);
// draws a movable handle
Vector3 newPoint = Handles.FreeMoveHandle(oldPoint, Quaternion.identity, .5f, new Vector3(.25f, .25f, .25f), Handles.CircleHandleCap);
newPoint = ApplyAxisLock(oldPoint, newPoint);
// records changes
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(target, "Free Move Handle");
t.PathElements[i].PathElementPosition = newPoint - t.GetOriginalTransformPosition();
}
}
}
/// <summary>
/// Locks handles movement on x, y, or z axis
/// </summary>
/// <param name="oldPoint"></param>
/// <param name="newPoint"></param>
/// <returns></returns>
protected virtual Vector3 ApplyAxisLock(Vector3 oldPoint, Vector3 newPoint)
{
MMPath t = (target as MMPath);
if (t.LockHandlesOnXAxis)
{
newPoint.x = oldPoint.x;
}
if (t.LockHandlesOnYAxis)
{
newPoint.y = oldPoint.y;
}
if (t.LockHandlesOnZAxis)
{
newPoint.z = oldPoint.z;
}
return(newPoint);
}