85 lines
3.0 KiB
Python
85 lines
3.0 KiB
Python
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# keyboardAgents.py
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# -----------------
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# Licensing Information: You are free to use or extend these projects for
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# educational purposes provided that (1) you do not distribute or publish
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# solutions, (2) you retain this notice, and (3) you provide clear
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# attribution to UC Berkeley, including a link to http://ai.berkeley.edu.
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#
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# Attribution Information: The Pacman AI projects were developed at UC Berkeley.
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# The core projects and autograders were primarily created by John DeNero
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# (denero@cs.berkeley.edu) and Dan Klein (klein@cs.berkeley.edu).
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# Student side autograding was added by Brad Miller, Nick Hay, and
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# Pieter Abbeel (pabbeel@cs.berkeley.edu).
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from game import Agent
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from game import Directions
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import random
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class KeyboardAgent(Agent):
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"""
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An agent controlled by the keyboard.
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"""
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# NOTE: Arrow keys also work.
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WEST_KEY = 'a'
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EAST_KEY = 'd'
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NORTH_KEY = 'w'
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SOUTH_KEY = 's'
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STOP_KEY = 'q'
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def __init__( self, index = 0 ):
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self.lastMove = Directions.STOP
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self.index = index
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self.keys = []
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def getAction( self, state):
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from graphicsUtils import keys_waiting
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from graphicsUtils import keys_pressed
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keys = keys_waiting() + keys_pressed()
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if keys != []:
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self.keys = keys
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legal = state.getLegalActions(self.index)
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move = self.getMove(legal)
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if move == Directions.STOP:
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# Try to move in the same direction as before
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if self.lastMove in legal:
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move = self.lastMove
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if (self.STOP_KEY in self.keys) and Directions.STOP in legal: move = Directions.STOP
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if move not in legal:
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move = random.choice(legal)
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self.lastMove = move
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return move
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def getMove(self, legal):
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move = Directions.STOP
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if (self.WEST_KEY in self.keys or 'Left' in self.keys) and Directions.WEST in legal: move = Directions.WEST
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if (self.EAST_KEY in self.keys or 'Right' in self.keys) and Directions.EAST in legal: move = Directions.EAST
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if (self.NORTH_KEY in self.keys or 'Up' in self.keys) and Directions.NORTH in legal: move = Directions.NORTH
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if (self.SOUTH_KEY in self.keys or 'Down' in self.keys) and Directions.SOUTH in legal: move = Directions.SOUTH
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return move
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class KeyboardAgent2(KeyboardAgent):
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"""
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A second agent controlled by the keyboard.
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"""
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# NOTE: Arrow keys also work.
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WEST_KEY = 'j'
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EAST_KEY = "l"
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NORTH_KEY = 'i'
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SOUTH_KEY = 'k'
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STOP_KEY = 'u'
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def getMove(self, legal):
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move = Directions.STOP
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if (self.WEST_KEY in self.keys) and Directions.WEST in legal: move = Directions.WEST
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if (self.EAST_KEY in self.keys) and Directions.EAST in legal: move = Directions.EAST
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if (self.NORTH_KEY in self.keys) and Directions.NORTH in legal: move = Directions.NORTH
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if (self.SOUTH_KEY in self.keys) and Directions.SOUTH in legal: move = Directions.SOUTH
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return move
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