def METHOD_NAME(self, event):
    x = event.pos().x()
    y = event.pos().y()
    print("Destiny: ", x, ", ", y)
    rX, rY = self.parent.grid.gridToWorld(x,y) 
    print("WORLD: ", rX, ", ", rY)
    self.parent.grid.setDestiny(x, y)
    self.parent.grid.resetPath()
    self.parent.grid.resetGrid()
    self.parent.setDestinyXYValues("{0:.2f}".format(rX),"{0:.2f}".format(rY))