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1 ## a vs die roller as used by WOD games
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2 #!/usr/bin/env python
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3 # Copyright (C) 2000-2001 The OpenRPG Project
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4 #
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5 # openrpg-dev@lists.sourceforge.net
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6 #
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7 # This program is free software; you can redistribute it and/or modify
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8 # it under the terms of the GNU General Public License as published by
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9 # the Free Software Foundation; either version 2 of the License, or
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10 # (at your option) any later version.
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11 #
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU General Public License for more details.
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16 #
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17 # You should have received a copy of the GNU General Public License
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18 # along with this program; if not, write to the Free Software
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19 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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20 # --
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21 #
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22 # File: shadowrun.py
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23 # Author: Michael Edwards (AKA akoman)
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24 # Maintainer:
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25 # Version: 1.0
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26 #
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27 # Description: A modified form of the World of Darkness die roller to
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28 # conform to ShadowRun rules-sets. Thanks to the ORPG team
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29 # for the original die rollers.
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30 # Thanks to tdb30_ for letting me think out loud with him.
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31 # I take my hint from the HERO dieroller: It creates for wildly variant options
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32 # Further, .vs and .open do not work together in any logical way. One method of
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33 # chaining them results in a [Bad Dice Format] and the other results in a standard
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34 # output from calling .open()
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35
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36 # vs is a classic 'comparison' method function, with one difference. It uses a
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37 # c&p'ed .open(int) from die.py but makes sure that once the target has been exceeded
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38 # then it stops rerolling. The overhead from additional boolean checking is probably
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39 # greater than the gains from not over-rolling. The behaviour is in-line with
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40 # Shadowrun Third Edition which recommends not rolling once you've exceeded the target
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41 # open is an override of .open(int) in die.py. The reason is pretty simple. In die.py open
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42 # refers to 'open-ended rolling' whereas in Shadowrun it refers to an 'Open Test' where
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43 # the objective is to find the highest die total out of rolled dice. This is then generally
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44 # used as the target in a 'Success Test' (for which .vs functions)
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45
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46 __version__ = "1.0"
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47
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48 from std import std
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49 from orpg.dieroller.base import *
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50
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51 class shadowrun(std):
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52 name = "shadowrun"
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53
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54 def __init__(self,source=[],target=2):
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55 std.__init__(self,source)
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56
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57 def vs(self,target):
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58 return srVs(self, target)
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59
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60 def open(self):
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61 return srOpen(self)
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62
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63 die_rollers.register(shadowrun)
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64
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65 class srVs(std):
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66 def __init__(self,source=[], target=2):
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67 std.__init__(self, source)
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68 # In Shadowrun, not target number may be below 2. All defaults are set to two and any
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69 # thing lower is scaled up.
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70 if target < 2:
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71 self.target = 2
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72 else:
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73 self.target = target
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74 # Shadowrun was built to use the d6 but in the interests of experimentation I have
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75 # made the dieroller generic enough to use any die type
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76 self.openended(self[0].sides)
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77
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78 def openended(self,num):
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79 if num <= 1:
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80 self
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81 done = 1
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82 for i in range(len(self.data)):
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83 if (self.data[i].lastroll() >= num) and (self.data[i] < self.target):
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84 self.data[i].extraroll()
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85 done = 0
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86 if done:
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87 return self
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88 else:
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89 return self.openended(num)
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90
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91 def __sum__(self):
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92 s = 0
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93 for r in self.data:
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94 if r >= self.target:
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95 s += 1
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96 return s
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97
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98 def __str__(self):
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99 if len(self.data) > 0:
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100 myStr = "[" + str(self.data[0])
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101 for a in self.data[1:]:
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102 myStr += ","
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103 myStr += str(a)
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104 myStr += "] vs " + str(self.target) + " for a result of (" + str(self.sum()) + ")"
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105 else:
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106 myStr = "[] = (0)"
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107
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108 return myStr
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109
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110 class srOpen(std):
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111 def __init__(self,source=[]):
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112 std.__init__(self,source)
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113 self.openended(self[0].sides)
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114
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115 def openended(self,num):
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116 if num <= 1:
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117 self
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118 done = 1
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119 for i in range(len(self.data)):
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120 if self.data[i].lastroll() == num:
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121 self.data[i].extraroll()
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122 done = 0
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123 if done:
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124 return self
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125 else:
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126 return self.openended(num)
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127
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128 def __sum__(self):
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129 s = 0
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130 for r in self.data:
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131 if r > s:
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132 s = r
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133 return s
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134
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135 def __str__(self):
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136 if len(self.data) > 0:
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137 myStr = "[" + str(self.data[0])
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138 for a in self.data[1:]:
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139 myStr += ","
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140 myStr += str(a)
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141 self.takeHighest(1)
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142 myStr += "] for a result of (" + str(self.__sum__().__int__()) + ")"
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143 else:
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144 myStr = "[] = (0)"
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145
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146 return myStr
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