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comparison gamelib/missions.py @ 23:f6a3b213857b

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Fix up some game state logic, add very basic REPL game interface.
author Jeremy Thurgood <firxen@gmail.com>
date Sun, 06 May 2012 19:06:28 +0200
parents gamelib/mission.py@296ce36fa7d9
children 27570aca5d17
comparison
equal deleted inserted replaced
22:296ce36fa7d9 23:f6a3b213857b
1 # -*- coding: utf-8 -*-
2 # vim:fileencoding=utf-8 ai ts=4 sts=4 et sw=4
3
4 from products import DoomsdayVirus, MachineGun, LightningGun
5
6 MAJOR_SETBACK, FAILURE, SUCCESS, MAJOR_SUCCESS, GAME_WIN = range(5)
7
8
9 class Result(object):
10 """Results of a mission"""
11
12 def __init__(self, outcome, money, reputation, msg):
13 self.outcome = outcome
14 self.money = money
15 self.reputation = reputation
16 self.message = msg
17 self.applied = False
18
19 def apply(self, state):
20 if not self.applied:
21 state.money += self.money
22 state.reputation += self.reputation
23 self.applied = True
24 else:
25 raise RuntimeError('attempted to apply result twice')
26
27
28 class Mission(object):
29 """Base class for the mission objects.
30 Missions have a name, short description (for list displays) and
31 long description (which may contain clues about approaches)"""
32
33 NAME = "Generic Mission"
34 SHORT_DESCRIPTION = None
35 LONG_DESCRIPTION = None
36 available = True
37
38 def __init__(self, init_data=None):
39 pass
40
41 def save_data(self):
42 """Serialize the mission state for saving, etc."""
43 return []
44
45 def attempt(self, equipment, state):
46 """Attempt the mission with the given equipment list.
47
48 Returns a result object with the results of the mission."""
49 return Result(FAILURE, 0, 0, "You can't succceed at this mission")
50
51
52 class PlaygroundBully(Mission):
53
54 NAME = "Rob kids in the playground"
55 SHORT_DESCRIPTION = "Steal from those significantly weaker than yourself"
56 LONG_DESCRIPTION = ("It's not menancing, or lucrative, but when the bills"
57 " are due, no one cares how you earn the money")
58
59 def attempt(sefl, equipment, state):
60 return Result(SUCCESS, 100, -1, "You devote your resources to"
61 " robbing kids in a playpark. It's not the finest moment"
62 " in your reign of terror, but at least you walked away"
63 " with a surprising amount of small change.")
64
65
66 class RansomChina(Mission):
67
68 NAME = "Hold China to ransom"
69 SHORT_DESCRIPTION = "Surely a path to riches and fame"
70 LONG_DESCRIPTION = "Holding China to ransom. The rewards for" \
71 " successfully threatening the largest country in the world" \
72 " are great, but the risks are significant. Without " \
73 "some serious firepower, the chances of success are small."
74
75 def __init__(self, init_data=None):
76 # Track prior approaches to this mission
77 self._prior_attempts = []
78 if init_data:
79 self._prior_attempts = init_data
80
81 def save_data(self):
82 return self._prior_attempts
83
84 def attempt(self, equipment, state):
85 failures = []
86 reputation = 0
87 for item in equipment:
88 if isinstance(item, DoomsdayVirus) and \
89 item.NAME not in self._prior_attempts:
90 self._prior_attempts.add(item.NAME)
91 return Result(SUCCESS, 1000000, 1, "Trembling at the threat of"
92 " your doomsday virus, the chinese government pays the"
93 " ransom")
94 elif isinstance(item, DoomsdayVirus):
95 reputation = -1
96 failures.append("'Hah, we've developed an antidote to your"
97 " virus, doctor'. You cannot threaten us with that"
98 " again'")
99 else:
100 failures.append("You fail to inspire fear with your %s"
101 % item.name)
102 return Result(FAILURE, 0, reputation, "\n".join(failures))
103
104
105 class RobBank(Mission):
106
107 NAME = "Rob the local bank"
108 SHORT_DESCRIPTION = "A trivial challenge, but easy money"
109 LONG_DESCRIPTION = "The security guards and local police are of minor" \
110 " concern. Walk in, clean out the vault, walk out. Couldn't be" \
111 " simpler."
112
113 def attempt(self, equipment, state):
114 failures = []
115 for item in equipment:
116 if isinstance(item, DoomsdayVirus):
117 if state.reputation < 10:
118 failures.append("The clerk doesn't realise the threat of"
119 " the vial you hold, and, although watching him"
120 " die in agony would be statisfying, you decide"
121 " it's not worth wasting this on something so"
122 " trivial")
123 else:
124 return Result(SUCCESS, 1000, 0, "Holding up a bank with"
125 " only a small vial of clear liquid. Now that"
126 " is power.")
127 elif isinstance(item, (MachineGun, LightningGun)):
128 return Result(SUCCESS, 1000, 0, "The threat of your weapons is"
129 " enough to inspire an impressive level of cooperation")
130 else:
131 failures.append("You fail to inspire fear with your %s"
132 % item.name)
133 return Result(FAILURE, 0, 0, "\n".join(failures))
134
135
136 class DestroyMountRushmore(Mission):
137
138 NAME = "Destroy Mount Rushmore"
139 SHORT_DESCRIPTION = "Monuments to other people? Intolerable"
140 LONG_DESCRIPTION = "While potentially expensive, destroying" \
141 " major monument is a good way to secure your reputation."
142
143 def attempt(self, equipment, state):
144 if not self.available:
145 raise RuntimeError('Cannot attempt an unavailable mission')
146 self.available = False
147 return Result(SUCCESS, 0, 100,
148 "Mount Rushmore is remarkably easy to destroy.")