(function(){
  UndoStack.register([
    {
      type: "create-scenery",
      undo: function(state){
        Scenery.remove(state.id)

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
      redo: function(state){
        Scenery.deserialize([ state ])
        Scenery.resize.show( scenery )

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
    },
    {
      type: "update-scenery",
      undo: function(state){
        var scenery = Scenery.find(state.id)
        
        scenery.deserialize(state)
        scenery.set_wall(Walls.find( state.wall_id ))
        
        if (editor.permissions.resize) {
          Scenery.resize.show(scenery)
        }

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
      redo: function(state){
        var scenery = Scenery.find(state.id)
        scenery.deserialize(state)
        scenery.set_wall(Walls.find( state.wall_id ))

        if (editor.permissions.resize) {
          Scenery.resize.show(scenery)
          Scenery.resize.rotate_dots()
          Scenery.resize.move_dots()
        }

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
    },
    {
      type: "destroy-scenery",
      undo: function(state){
        Scenery.deserialize([ state ])
        Scenery.resize.show( scenery )

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
      redo: function(state){
        Scenery.remove(state.id)

        // TODO: watch individual scenery object here
        Minotaur.watch( app.router.editorView.settings )
      },
    },
    
    // 
    
    {
      type: "create-room",
      undo: function(room){
        Rooms.remove(room)
        Rooms.clipper.update()
      },
      redo: function(room){
        Rooms.add(new Room(room))
        Rooms.clipper.update()
        app.tube("builder-pick-room", room)
      },
    },
    {
      type: "update-room",
      undo: function(state){
        var room = Rooms.list[state.id]
        room.rect.assign( state.rect )
        room.height = state.height
        Rooms.clipper.update()
        app.tube("builder-pick-room", room)
      },
      redo: function(state){
        var room = Rooms.list[state.id]
        room.rect.assign( state.rect )
        room.height = state.height
        Rooms.clipper.update()
        app.tube("builder-pick-room", room)
      },
    },
    {
      type: "destroy-room",
      undo: function(room){
        Rooms.add(new Room(room))
        Rooms.clipper.update()
        app.tube("builder-pick-room", room)
      },
      redo: function(room){
        Rooms.remove(room)
        Rooms.clipper.update()
      },
    },
    
    //

    {
      type: "update-wallpaper",
      undo: function(state){
        var wall = Walls.lookup[state.id]
        wall.deserialize(state)

        Minotaur.watch( app.router.editorView.settings )
      },
    },
    {
      type: "update-colors",
      undo: function(state){
        Walls.setColor[ state.mode ]( state.rgb )
        app.router.editorView.lightControl.setSwatchColor( state.mode, state.rgb )

        Minotaur.watch( app.router.editorView.settings )
      },
    },
    
  ])
})()