class Node:
    def __init__(self, parent, action, state_array):
        self.parent = parent
        self.action = action
        self.position = state_array

        # if parent:
        #     parent_pos = parent[1].get_position()
        #     diff = [state_array[0] - parent_pos[0], state_array[1] - parent_pos[1]]
        #     if diff[0]==1:
        #         action="E"
        #     elif diff[0]==-1:
        #         action="W"
        #     elif diff[1]==1:
        #         action="S"
        #     elif diff[1]==-1:
        #         action="N"
        #     self.action=action
        # else:
        #     self.action=action

    def get_position(self):
        return self.position

    def get_action(self):
        return self.action

    def get_parent(self):
        return self.parent

    def set_parent(self, parent):
        self.parent = parent