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comparison gamelib/animal.py @ 29:2e88c680672c

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Minimal fox raid logic
author Neil Muller <drnlmuller@gmail.com>
date Sun, 30 Aug 2009 18:46:46 +0000
parents ac3a74352b74
children f5f74f1f3a0b
comparison
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28:ac3a74352b74 29:2e88c680672c
1 """Class for the various animals in the game""" 1 """Class for the various animals in the game"""
2 2
3 import pygame 3 import pygame
4 import random
4 from pgu.vid import Sprite 5 from pgu.vid import Sprite
5 6
6 import data 7 import data
7 8
8 class Animal(Sprite): 9 class Animal(Sprite):
41 class Fox(Animal): 42 class Fox(Animal):
42 """A fox""" 43 """A fox"""
43 44
44 def __init__(self, pos): 45 def __init__(self, pos):
45 image = pygame.image.load(data.filepath('sprites/fox.png')) 46 image = pygame.image.load(data.filepath('sprites/fox.png'))
47 self.full = False
46 Animal.__init__(self, image, pos) 48 Animal.__init__(self, image, pos)
47 49
48 def move(self, gameboard): 50 def move(self, gameboard):
49 """Foxes will aim to move towards the closest henhouse or free 51 """Foxes will aim to move towards the closest henhouse or free
50 chicken""" 52 chicken"""
51 return self.pos 53 if self.full:
54 return
55 # Find the closest chicken
56 min_dist = 999
57 min_vec = None
58 closest = None
59 for chicken in gameboard.chickens:
60 vec = (chicken.pos[0] - self.pos[0], chicken.pos[1] - self.pos[1])
61 dist = abs(vec[0]) + abs(vec[1])
62 if dist < min_dist:
63 min_dist = dist
64 min_vec = vec
65 closest = chicken
66 xpos, ypos = self.pos
67 if min_vec[0] < 0:
68 xpos -= 1
69 elif min_vec[0] > 0:
70 xpos += 1
71 if min_vec[1] < 0:
72 ypos -= 1
73 elif min_vec[1] > 0:
74 ypos += 1
75 if closest.pos == self.pos:
76 gameboard.remove_chicken(closest)
77 self.full = True
78 self.pos = (xpos, ypos)
79
80