def __init__(self, *args):
        """
        Called on starting mcedit.
        Creates some basic variables.
        """
        CloneTool.__init__(self, *args)
        self.optionsPanel = BrushToolOptions(self)
        self.recentFillBlocks = []
        self.recentReplaceBlocks = []
        self.draggedPositions = []
        self.pickBlockKey = False
        self.lineToolKey = False
        self.lastPosition = None
        self.root = get_root()

        Called on starting mcedit.
        Creates some basic variables.
        
editortools/brush.py