object.py

   1 # object classes - classes for game interactive objects
   2 import pygame
   3 import os.path
   4
   5 import utility
   6
   7 # base class for all objects
   8 class GameObject:
   9         # initialization routine
  10         def __init__ (self, row, col, image = None):
  11                 self.row = row
  12                 self.col = col
  13                 self.image = image
  14
  15         # override this for interaction
  16         def interact (self):
  17                 pass
  18
  19         # use the object on another object
  20         def use (self, otherobject):
  21                 pass
  22
  23
  24 class Key (GameObject):
  25         def __init__ (self, row, col, image, key_id):
  26                 self.key_id = key_id
  27                 GameObject.__init__ (self, row, col, image)
  28
  29         # ask whether to pick up the key
  30         def interact (self, surface):
  31                 ans = utility.ask_question (surface, "You found a key.", ["Pick it up", "Leave it"])
  32                 return ans
  33
  34         # using the key
  35         def use (self, lockitem):
  36                 if type (lockitem) == Chest or type (lockitem) == Door:
  37                         if self.key_id == lockitem.key_id:
  38                                 if lockitem.unlocked is False:
  39                                         lockitem.unlocked = True
  40                                 else:
  41                                         lockitem.unlocked = True