gameobjects.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, text, image = None, can_pickup = True):
  11                 self.row = row
  12                 self.col = col
  13                 self.image = image
  14                 self.text = text
  15                 self.can_pickup = can_pickup
  16
  17         # override this for interaction, i.e. when character walks into the item
  18         def interact (self):
  19                 # always return True if the object is interacted with
  20                 # return False to make the object block the player from
  21                 # moving over it
  22                 return True
  23
  24         # use the object on another object
  25         def use (self, otherobject):
  26                 pass
  27
  28
  29 class HealthPotion (GameObject):
  30         # initialize
  31         def __init__ (self, row, col, image):
  32                 text = "health potion"
  33                 GameObject.__init__ (self, row, col, text, image, True)
  34
  35         # no interaction with this object
  36         def interact (self):
  37                 return True
  38
  39         # using the potion
  40         def use (self, butaba):
  41                 pass
  42
  43 class Key (GameObject):
  44         def __init__ (self, row, col, text, image, key_id):
  45                 self.key_id = key_id
  46                 GameObject.__init__ (self, row, col, text, image, True)
  47
  48         # no interaction with this object
  49         def interact (self):
  50                 # key is not a solid object so return True
  51                 return True
  52
  53         # using the key
  54         def use (self, lockitem):
  55                 if type (lockitem) == Chest or type (lockitem) == Door:
  56                         if self.key_id == lockitem.key_id:
  57                                 if lockitem.unlocked is False:
  58                                         lockitem.unlocked = True
  59                                 else:
  60                                         lockitem.unlocked = True