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| def move(self, state, what, where_from, where_to): | |
| state[where_from].remove(what) | |
| state[where_to].add(what) | |
| def get_next_state(self, starting_state, action): | |
| next_state = copy.deepcopy(starting_state) | |
| if action == 'MOVE_PLAYER_FROM_LEFT_TO_BOAT': | |
| if '⛵' in next_state[0]: | |
| self.move(next_state, '⛵' ,0 , 1) | |
| if action == 'MOVE_PLAYER_FROM_RIGHT_TO_BOAT': | |
| if '⛵' in next_state[2]: | |
| self.move(next_state, '⛵', 2, 1) | |
| if action == 'MOVE_PLAYER_FROM_BOAT_TO_LEFT': | |
| if len(next_state[1]) == 1 and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 0) | |
| if action == 'MOVE_PLAYER_FROM_BOAT_TO_RIGHT': | |
| if len(next_state[1]) == 1 and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 2) | |
| if action == 'MOVE_GOAT_FROM_LEFT_TO_BOAT': | |
| if '🐐' in next_state[0] and '⛵' in next_state[0]: | |
| self.move(next_state, '⛵', 0, 1) | |
| self.move(next_state, '🐐', 0, 1) | |
| if action == 'MOVE_WOLF_FROM_LEFT_TO_BOAT': | |
| if '🐺' in next_state[0] and '⛵' in next_state[0]: | |
| self.move(next_state, '⛵', 0, 1) | |
| self.move(next_state, '🐺', 0, 1) | |
| if action == 'MOVE_CABBAGE_FROM_LEFT_TO_BOAT': | |
| if '🥦' in next_state[0] and '⛵' in next_state[0]: | |
| self.move(next_state, '⛵', 0, 1) | |
| self.move(next_state, '🥦', 0, 1) | |
| if action == 'MOVE_GOAT_FROM_BOAT_TO_LEFT': | |
| if '🐐' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1 ,0) | |
| self.move(next_state, '🐐', 1, 0) | |
| if action == 'MOVE_WOLF_FROM_BOAT_TO_LEFT': | |
| if '🐺' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 0) | |
| self.move(next_state, '🐺', 1, 0) | |
| if action == 'MOVE_CABBAGE_FROM_BOAT_TO_LEFT': | |
| if '🥦' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 0) | |
| self.move(next_state, '🥦', 1, 0) | |
| if action == 'MOVE_GOAT_FROM_BOAT_TO_RIGHT': | |
| if '🐐' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 2) | |
| self.move(next_state, '🐐', 1, 2) | |
| if action == 'MOVE_WOLF_FROM_BOAT_TO_RIGHT': | |
| if '🐺' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 2) | |
| self.move(next_state, '🐺', 1, 2) | |
| if action == 'MOVE_CABBAGE_FROM_BOAT_TO_RIGHT': | |
| if '🥦' in next_state[1] and '⛵' in next_state[1]: | |
| self.move(next_state, '⛵', 1, 2) | |
| self.move(next_state, '🥦', 1, 2) | |
| if action == 'MOVE_GOAT_FROM_RIGHT_TO_BOAT': | |
| if '🐐' in next_state[2] and '⛵' in next_state[2]: | |
| self.move(next_state, '⛵', 2, 1) | |
| self.move(next_state, '🐐', 2, 1) | |
| if action == 'MOVE_WOLF_FROM_RIGHT_TO_BOAT': | |
| if '🐺' in next_state[2] and '⛵' in next_state[2]: | |
| self.move(next_state, '⛵', 2, 1) | |
| self.move(next_state, '🐺', 2, 1) | |
| if action == 'MOVE_CABBAGE_FROM_RIGHT_TO_BOAT': | |
| if '🥦' in next_state[2] and '⛵' in next_state[2]: | |
| self.move(next_state, '⛵', 2, 1) | |
| self.move(next_state, '🥦', 2, 1) | |
| return next_state |
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