Mercurial > sypikslang
annotate gamelib/lab.py @ 135:8d1cf98e39b5
Reputation decays over time
author | Neil Muller <drnlmuller@gmail.com> |
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date | Thu, 10 May 2012 17:07:06 +0200 |
parents | ef63532cac13 |
children | 14917385a0fd |
rev | line source |
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14 | 1 # -*- test-case-name: gamelib.tests.test_lab -*- |
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2 |
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3 from random import random, choice |
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49 | 5 from gamelib import research, schematics |
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6 from gamelib.game_base import get_subclasses |
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7 |
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8 |
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9 class Lab(object): |
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10 BASIC_RESEARCH_SUCCESS_RATE = 0.05 |
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11 BASIC_RESEARCH_SUCCESS_MULTIPLIER = 2 |
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20 | 13 def __init__(self, init_data=None): |
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14 self.science = [] |
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15 self.new_research = get_subclasses(research.ResearchArea) |
49 | 16 self.new_schematics = get_subclasses(schematics.Schematic) |
20 | 17 |
18 if init_data is not None: | |
19 # Load stored state. | |
20 self._load_data(init_data) | |
21 else: | |
22 # New game. | |
23 self._choose_initial_science() | |
24 | |
25 def _load_data(self, init_data): | |
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26 sciences = init_data['science'].copy() |
49 | 27 for science in self.new_schematics + self.new_research: |
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28 # Check if this science is one we should know. |
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29 points = sciences.pop(science.save_name(), None) |
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30 if points is not None: |
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31 # It is! Learn it. |
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32 self._gain_science(science(points)) |
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33 if sciences: |
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34 # We're supposed to know an unknowable thing. :-( |
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35 raise ValueError("Unknown science: %s" % (sciences.keys(),)) |
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36 |
21 | 37 def save_data(self): |
47 | 38 return {'science': dict(s.save_data() for s in self.science)} |
21 | 39 |
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40 def _choose_initial_science(self): |
49 | 41 # We always get all starting schematics. |
42 for schematic in self.new_schematics[:]: | |
43 if schematic.STARTING_PRODUCT: | |
44 self._gain_science(schematic()) | |
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45 |
115 | 46 # We start with Physics, because it's not Philately. |
47 physics = research.Physics() | |
48 self._gain_science(physics) | |
49 new_science = [physics] | |
50 | |
51 # We get two other random sciences with no prerequisites. | |
52 for _ in range(2): | |
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53 science = choice(self.find_new_research())() |
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54 self._gain_science(science) |
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55 new_science.append(science) |
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56 |
49 | 57 # Add a point to each of our sciences, and see if we get schematics. |
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58 self.spend_points(new_science, 0) |
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59 |
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60 def _gain_science(self, science): |
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61 self.science.append(science) |
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62 if isinstance(science, research.ResearchArea): |
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63 self.new_research.remove(type(science)) |
49 | 64 elif isinstance(science, schematics.Schematic): |
65 self.new_schematics.remove(type(science)) | |
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66 |
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67 def spend_points(self, things, basic_research): |
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68 breakthroughs = [] |
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69 |
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70 # First, allocate the points. |
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71 for thing in things: |
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72 assert thing in self.science |
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73 assert thing.can_spend(self, 1) |
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74 thing.spend_point() |
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75 |
49 | 76 # Next, check for schematic breakthroughs and upgrades |
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77 breakthroughs.extend(self.apply_area_research([ |
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78 thing for thing in things |
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79 if isinstance(thing, research.ResearchArea)])) |
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80 |
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81 # Finally, check for research breakthroughs. |
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82 breakthroughs.extend(self.apply_basic_research(basic_research)) |
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83 |
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84 return breakthroughs |
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85 |
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86 def _get_science(self, science_class): |
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87 for science in self.science: |
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88 if isinstance(science, science_class): |
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89 return science |
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90 return None |
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91 |
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92 def meet_requirements(self, science_class, extra=0): |
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93 total_points = 0 |
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94 base_points = 0 |
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95 for science, level in science_class.PREREQUISITES: |
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96 my_science = self._get_science(science) |
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97 if my_science is None: |
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98 return False |
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99 if my_science.points < level: |
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100 return False |
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101 base_points += level |
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102 total_points += my_science.points |
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103 return total_points - base_points >= extra |
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104 |
49 | 105 def find_new_schematics(self): |
106 available_schematics = [] | |
107 for schematic_class in self.new_schematics: | |
108 if self.meet_requirements(schematic_class): | |
109 available_schematics.append(schematic_class) | |
110 return available_schematics | |
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111 |
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112 def find_new_research(self): |
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113 available_research = [] |
14 | 114 for research_class in self.new_research: |
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115 if self.meet_requirements(research_class): |
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116 available_research.append(research_class) |
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117 return available_research |
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118 |
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119 def apply_area_research(self, researches): |
49 | 120 options = [schema for schema in self.find_new_schematics() |
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121 if schema.depends_on(researches)] |
49 | 122 breakthroughs = [schematic for schematic in options |
123 if random() < schematic.ACQUISITION_CHANCE] | |
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124 if breakthroughs: |
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125 breakthrough = choice(breakthroughs)() |
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126 self._gain_science(breakthrough) |
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127 breakthroughs = [breakthrough] |
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128 return breakthroughs |
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129 |
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130 def apply_basic_research(self, basic_research): |
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131 if basic_research <= 1: |
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132 return [] |
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133 |
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134 options = self.find_new_research() |
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135 success_chance = self.BASIC_RESEARCH_SUCCESS_RATE * ( |
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136 self.BASIC_RESEARCH_SUCCESS_MULTIPLIER ** basic_research) |
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137 breakthroughs = [research for research in options |
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138 if random() < success_chance] |
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139 if breakthroughs: |
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140 breakthrough = choice(breakthroughs)(1) |
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141 self._gain_science(breakthrough) |
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142 breakthroughs = [breakthrough] |
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143 return breakthroughs |