private void OnSceneGUI() { hill = target as Hill; if (!hill.isActiveAndEnabled) { return; } handleTransform = hill.transform; handleRotation = Tools.pivotRotation == PivotRotation.Local ? handleTransform.rotation : Quaternion.identity; Vector2 top = ShowPoint(0); Vector2 start = ShowPoint(1); Vector2 control = ShowPoint(2); Vector2 end = ShowPoint(3); Handles.color = Color.gray; Handles.DrawLine(start, control); Handles.DrawLine(control, end); Handles.color = Color.red; Vector2[] points = hill.ComputePoints(); Vector2 lineStart = top, lineEnd; for (int i = 1; i <= hill.steps; i++) { lineEnd = handleTransform.TransformPoint(points[i]); Handles.DrawLine(lineStart, lineEnd); lineStart = lineEnd; } }