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annotate gamelib/equipment.py @ 114:4c2fbab20abe

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Foxes are stealthy now.
author Jeremy Thurgood <firxen@gmail.com>
date Wed, 02 Sep 2009 19:17:26 +0000
parents 48019afde338
children 5621f5074c8d
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1 """Stuff for animals to use."""
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2
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3 import random
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4 import sound
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5
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6 class Equipment(object):
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7 IS_EQUIPMENT = True
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8
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9 def __init__(self):
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10 self._buy_price = self.BUY_PRICE
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11 self._sell_price = self.SELL_PRICE
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12 self._name = self.NAME
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13
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14 def buy_price(self):
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15 return self._buy_price
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16
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17 def sell_price(self):
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18 return self._sell_price
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19
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20 def name(self):
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21 return self._name
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23 class Weapon(Equipment):
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24 IS_WEAPON = True
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26 def in_range(self, gameboard, wielder, target):
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27 """Can the lucky wielder hit the potentially unlucky target with this?"""
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28 return wielder.pos.dist(target.pos) <= self.RANGE
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30 def hit(self, gameboard, wielder, target):
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31 """Is the potentially unlucky target actually unlucky?"""
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32 if hasattr(self, 'HIT_SOUND'):
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33 sound.play_sound(self.HIT_SOUND)
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34 roll = random.randint(1, 100)
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35 return roll > self.BASE_HIT + self.RANGE_MODIFIER*wielder.pos.dist(target.pos)
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36
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37 def place(self, animal):
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38 for eq in animal.equipment:
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39 if self.NAME == eq.NAME:
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40 return False
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41 return True
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43 class Rifle(Weapon):
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44 NAME = "rifle"
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45 BUY_PRICE = 20
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46 SELL_PRICE = 15
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47
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48 RANGE = 3
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49 BASE_HIT = 50
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50 RANGE_MODIFIER = 15
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51 HIT_SOUND = "fire-rifle.ogg"
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52
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53 def is_equipment(obj):
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54 """Return true if obj is a build class."""
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55 return getattr(obj, "IS_EQUIPMENT", False) and hasattr(obj, "NAME")
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57 def is_weapon(obj):
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58 return is_equipment(obj) and getattr(obj, 'IS_WEAPON', False)
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60 EQUIPMENT = []
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61 for name in dir():
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62 obj = eval(name)
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63 try:
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64 if is_equipment(obj):
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65 EQUIPMENT.append(obj)
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66 except TypeError:
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67 pass