emulator.py 文件源码

def __init__(self, rom_name, vis,frameskip=1,windowname='preview'):
    self.ale = ALEInterface()
    self.max_frames_per_episode = self.ale.getInt("max_num_frames_per_episode");
    self.ale.setInt("random_seed",123)
    self.ale.setInt("frame_skip",frameskip)
    romfile = str(ROM_PATH)+str(rom_name)
    if not os.path.exists(romfile):
      print 'No ROM file found at "'+romfile+'".\nAdjust ROM_PATH or double-check the filt exists.'
    self.ale.loadROM(romfile)
    self.legal_actions = self.ale.getMinimalActionSet()
    self.action_map = dict()
    self.windowname = windowname
    for i in range(len(self.legal_actions)):
      self.action_map[self.legal_actions[i]] = i

    # print(self.legal_actions)
    self.screen_width,self.screen_height = self.ale.getScreenDims()
    print("width/height: " +str(self.screen_width) + "/" + str(self.screen_height))
    self.vis = vis
    if vis:
      cv2.startWindowThread()
      cv2.namedWindow(self.windowname, flags=cv2.WINDOW_AUTOSIZE) # permit manual resizing