/// <summary>
/// Automatically activate tile system from user selection if appropriate so that
/// tool can be selected.
/// </summary>
private void AutoActivateTileSystem()
{
ToolUtility.SelectActiveOrParentTileSystem();
if (ToolUtility.ActiveTileSystem == null)
{
// Okay, no tile system is actually selected.
// Select first non-locked if possible; otherwise select first if possible.
var tileSystems = ToolUtility.GetAllTileSystemsInScene();
var firstTileSystem = tileSystems.FirstOrDefault(s => s != null && !s.Locked);
if (firstTileSystem == null)
{
firstTileSystem = tileSystems.FirstOrDefault(s => s != null);
}
if (firstTileSystem != null)
{
ToolUtility.SelectTileSystem(firstTileSystem);
}
else
{
return;
}
}
// When using a tool it only makes sense to have one selected tile system.
if (Selection.objects.Length > 1)
{
Selection.objects = new Object[] { ToolUtility.ActiveTileSystem.gameObject };
}
}