Mercurial > rinkhals

annotate gamelib/equipment.py @ 190:c5ec3ff32d11

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Commit regenerated splash images.
author Simon Cross <hodgestar@gmail.com>
date Fri, 04 Sep 2009 18:09:37 +0000
parents 37af9e5dd292
children 9d31cfc3afde
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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 DRAW_LAYER = 0
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9
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10 def __init__(self):
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11 self._buy_price = self.BUY_PRICE
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12 self._sell_price = self.SELL_PRICE
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13 self._name = self.NAME
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14
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15 def buy_price(self):
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16 return self._buy_price
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17
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18 def sell_price(self):
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19 return self._sell_price
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20
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21 def name(self):
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22 return self._name
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23
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24 class Weapon(Equipment):
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25 IS_WEAPON = True
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26 DRAW_LAYER = 10
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27
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28 def _get_parameter(self, parameter, wielder):
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29 mod_attr = 'MODIFY_%s_%s' % (self.TYPE, parameter)
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30 param = getattr(self, parameter)
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31 return getattr(wielder.abode, mod_attr, lambda r: r)(param)
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32
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33 def in_range(self, gameboard, wielder, target):
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34 """Can the lucky wielder hit the potentially unlucky target with this?"""
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35 return wielder.pos.dist(target.pos) <= self._get_parameter('RANGE', wielder)
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36
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37 def hit(self, gameboard, wielder, target):
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38 """Is the potentially unlucky target actually unlucky?"""
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39 if hasattr(self, 'HIT_SOUND'):
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40 sound.play_sound(self.HIT_SOUND)
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41 roll = random.randint(1, 100)
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42 base_hit = self._get_parameter('BASE_HIT', wielder)
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43 range_penalty = self._get_parameter('RANGE_PENALTY', wielder)
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44 return roll > (100-base_hit) + range_penalty*wielder.pos.dist(target.pos)
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45
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46 def place(self, animal):
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47 for eq in animal.equipment:
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48 if is_weapon(eq):
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49 return False
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50 return True
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51
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52 class Rifle(Weapon):
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53 TYPE = "GUN"
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54 NAME = "rifle"
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55 BUY_PRICE = 100
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56 SELL_PRICE = 75
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57
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58 RANGE = 3
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59 BASE_HIT = 55
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60 RANGE_PENALTY = 15
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61 HIT_SOUND = "fire-rifle.ogg"
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62
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63 CHICKEN_IMAGE_FILE = 'sprites/equip_rifle.png'
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64
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65 class Knife(Weapon):
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66 TYPE = "KNIFE"
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67 NAME = "knife"
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68 BUY_PRICE = 25
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69 SELL_PRICE = 15
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70
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71 RANGE = 1
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72 BASE_HIT = 70
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73 RANGE_PENALTY = 0
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74
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75 CHICKEN_IMAGE_FILE = 'sprites/equip_knife.png'
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76
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77 class Armour(Equipment):
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78 IS_ARMOUR = True
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79 DRAW_LAYER = 5
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80
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81 def __init__(self):
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82 super(Armour, self).__init__()
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83 self.hitpoints = self.STARTING_HITPOINTS
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84
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85 def place(self, animal):
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86 """Give additional lives"""
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87 for eq in animal.equipment:
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88 if eq.NAME == self.NAME:
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89 return False
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90 return True
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91
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92 def survive_damage(self):
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93 self.hitpoints -= 1
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94 if self.hitpoints > 0:
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95 self._sell_price = int(self._sell_price*self.hitpoints/float(self.hitpoints+1))
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96 return True
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97 return False
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98
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99 class Helmet(Armour):
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100 NAME = "helmet"
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101 BUY_PRICE = 25
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102 SELL_PRICE = 15
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103
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104 STARTING_HITPOINTS = 1
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105
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106 CHICKEN_IMAGE_FILE = 'sprites/helmet.png'
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107
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108 class Kevlar(Armour):
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109 NAME = "kevlar"
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110 BUY_PRICE = 100
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111 SELL_PRICE = 75
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112
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113 STARTING_HITPOINTS = 2
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114
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115 CHICKEN_IMAGE_FILE = 'sprites/kevlar.png'
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116
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117 def is_equipment(obj):
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118 """Return true if obj is a build class."""
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119 return getattr(obj, "IS_EQUIPMENT", False) and hasattr(obj, "NAME")
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120
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121 def is_weapon(obj):
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122 return is_equipment(obj) and getattr(obj, 'IS_WEAPON', False)
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123
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124 def is_armour(obj):
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125 return is_equipment(obj) and getattr(obj, 'IS_ARMOUR', False)
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126
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127 EQUIPMENT = []
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128 for name in dir():
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129 obj = eval(name)
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130 try:
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131 if is_equipment(obj):
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132 EQUIPMENT.append(obj)
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133 except TypeError:
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134 pass