erdslangetjie/player.py

   1 # Player and Player-like objects
   2
   3 from erdslangetjie.data import load_image
   4
   5
   6 class GameSprite(object):
   7
   8     def __init__(self):
   9         self.pos = (0, 0)
  10         self.sprite = None
  11
  12     def get_image(self):
  13         return self.sprite
  14
  15     def get_texture(self):
  16         return self.sprite.texture
  17
  18
  19 class FigureSprite(GameSprite):
  20
  21     def can_move(self, direction, level):
  22         '''Check if we can move in the given direction'''
  23         cand_pos = (self.pos[0] + direction[0], self.pos[1] + direction[1])
  24         return not level.blocked(cand_pos)
  25
  26
  27 class ThePlayer(FigureSprite):
  28
  29     def __init__(self):
  30         super(ThePlayer, self).__init__()
  31         self.sprite = load_image('sprites/player.png')
  32
  33     def move(self, direction, level):
  34         if self.can_move(direction, level):
  35             self.pos = (self.pos[0] + direction[0], self.pos[1] + direction[1])
  36             return True
  37         return False
  38
  39
  40 class Nemesis(FigureSprite):
  41
  42     def __init__(self):
  43         super(Nemesis, self).__init__()
  44         self.sprite = load_image('sprites/nemesis.png')
  45         self.reset_pos()
  46         self.been = []
  47
  48     def move(self, level, caught):
  49         if not self.on_board():
  50             # Advance towards the map a step at a time
  51             self.pos = (self.pos[0] + 1, self.pos[1])
  52             if self.on_board():
  53                 self.pos = level.enter_pos
  54             return False
  55         # AI goes here
  56         steps = 0
  57         self.been.append(self.pos)
  58         for direction in [(1, 0), (-1, 0), (0, -1), (0, 1)] * 2:
  59             new_pos = (self.pos[0] + direction[0], self.pos[1] + direction[1])
  60             if self.can_move(direction, level) and new_pos not in self.been:
  61                 self.pos = new_pos
  62                 self.been.append(new_pos)
  63                 steps += 1
  64             if steps >= 2:
  65                 break
  66             if caught():
  67                 break
  68         if steps == 0:
  69             self.been = []
  70         return True
  71
  72     def reset_pos(self):
  73         self.pos = (-10, 0)
  74
  75     def on_board(self):
  76         return self.pos[0] >= 0