Mercurial > parpg-core

annotate src/parpg/dialogueactions.py @ 170:371b17bc9113

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Added ReplaceItemAction, to dialogueactions, which replaces a single item in the players inventory.
author KarstenBock@gmx.net
date Sun, 09 Oct 2011 14:39:02 +0200
parents bb0e09112a1f
children 191f89a22303
rev   line source
0
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1 # This file is part of PARPG.
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2 #
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3 # PARPG is free software: you can redistribute it and/or modify
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4 # it under the terms of the GNU General Public License as published by
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5 # the Free Software Foundation, either version 3 of the License, or
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6 # (at your option) any later version.
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7 #
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8 # PARPG is distributed in the hope that it will be useful,
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9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 # GNU General Public License for more details.
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12 #
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13 # You should have received a copy of the GNU General Public License
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14 # along with PARPG. If not, see <http://www.gnu.org/licenses/>.
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15 """
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16 Provides classes used to implement dialogue logic and allow dialogues to have
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17 external effects on the game state.
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18 """
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19 import logging
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20
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bb0e09112a1f take_stuff and give_stuff in dialogues work again.
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21 from parpg.components import container
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22
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23 logger = logging.getLogger('dialogueaction')
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24
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25 class DialogueAction(object):
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26 """
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27 Abstract base class for subclasses that represent dialogue actions embedded
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28 within a DialogueSection or DialogueResponse.
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29
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30 Subclasses must define the keyword class variable and implement both the
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31 __init__ and __call__ methods.
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32
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33 @cvar keyword: keyword used by the L{DialogueParser} to recognize the
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34 L{DialogueAction} in serialized L{Dialogues<Dialogues>}.
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35 @type keyword: basestring
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36 """
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37 logger = logging.getLogger('dialogueaction.DialogueAction')
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38 registered_actions = {}
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39
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40 @classmethod
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41 def registerAction(cls, dialogue_action_type):
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42 """
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43 Register a L{DialogueAction} subclass for easy reference.
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44
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45 @param dialogue_action_type: dialogue action to register.
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46 @type dialogue_action_type: L{DialogueAction} subclass
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47 """
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48 cls.registered_actions[dialogue_action_type.keyword] = \
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49 dialogue_action_type
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50
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51 def __init__(self, *args, **kwargs):
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52 """
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53 Initialize a new L{DialogueAction} instance.
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54
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55 @param args: positional arguments passed by the L{DialogueParser} after
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56 reading a serialized L{Dialogue}.
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57 @type args: list of objects
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58 @param kwargs: keyword arguments passed by the L{DialogueParser} after
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59 reading a serialized L{Dialogue}.
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60 @type kwargs: dict of objects
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61 """
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62 if (not hasattr(type(self), 'keyword')):
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63 raise AttributeError('DialogueAction subclasses must define the '
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64 'keyword class variable.')
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65 self.arguments = (args, kwargs)
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66
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67 def __call__(self, game_state):
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68 """
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69 Execute the L{DialogueAction}.
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70
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71 @param game_state: variables and functions that make up the current
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72 game state.
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73 @type game_state: dict of objects
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74 """
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75 raise NotImplementedError('subclasses of DialogueAction must '
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76 'override __call__')
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77
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78
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79 class MeetAction(DialogueAction):
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80 """
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81 L{DialogueAction} that adds an NPC to the list of NPCs known by the player.
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82 """
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83 keyword = 'meet'
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84
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85 def __init__(self, *args, **kwargs):
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86 """
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87 Initialize a new L{MeetAction} instance.
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88
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89 @param args: positional arguments.
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90 @type args: list of objects
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91 @param npc_id: identifier of the NPC that the player has met.
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92 @type npc_id: basestring
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93 @param kwargs: keyword arguments (not used).
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94 @type kwargs: dict of objects
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95 """
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96 DialogueAction.__init__(self, *args, **kwargs)
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97 self.npc_id = args[0]
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98
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99 def __call__(self, game_state):
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100 """
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101 Add an NPC to the list of NPCs known by the player.
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102
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103 @param game_state: variables and functions that make up the current
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104 game state.
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105 @type game_state: dict of objects
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106 """
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107 npc_id = self.npc_id
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108 # NOTE Technomage 2010-11-13: This print statement seems overly
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109 # verbose, so I'm logging it as an INFO message instead.
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110 # print("You've met {0}!".format(npc_id))
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111 self.logger.info("You've met {0}!".format(npc_id))
86
2e307c4f78e3 DialogueGUI now acceps met_fnc and meet_fnc in its constructor and stores them in its game_state as "met" and "meet" respectively.
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112 game_state['meet'](npc_id)
0
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113 DialogueAction.registerAction(MeetAction)
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114
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115
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116 class InventoryAction(DialogueAction):
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117 """
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118 Abstract base class for L{DialogueActions<DialogueAction>} used to
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119 manipulate the NPC's and the player's inventory.
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120 """
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121 def __init__(self, *args, **kwargs):
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122 """
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123 Initialize a new L{InventoryAction} instance.
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124
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125 @param args: positional arguments.
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126 @type args: list of objects
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127 @param item_types: item types that should be manipulated.
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128 @type item_types: list of basestrings
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129 @param kwargs: keyword arguments.
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130 @type kwargs: dict of objects
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131 """
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132 DialogueAction.__init__(self, *args, **kwargs)
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133 self.item_types = args
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134
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135
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136 class TakeStuffAction(InventoryAction):
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137 """
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138 L{InventoryAction} used to move items from the NPC's inventory to the
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139 player's inventory.
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140 """
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141 keyword = 'take_stuff'
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142
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143 def __call__(self, game_state):
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144 """
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145 Move items from the NPC's inventory to the player's inventory.
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146
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147 @param game_state: variables and functions that make up the current
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148 game state.
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149 @type game_state: dict of objects
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150 """
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151 item_types = self.item_types
109
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152 for item_type in item_types:
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153 item = container.take_item(game_state['npc'].container, item_type)
0
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154 if (item):
109
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155 container.put_item(game_state['pc'].container, item)
170
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156 print("{0} gave you the {1}".format(game_state['npc'].
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157 description.view_name,
0
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158 item_type))
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159 else:
109
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160 print("{0} doesn't have the {1}".format(game_state['npc'].
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161 description.view_name,
0
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162 item_type))
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163 DialogueAction.registerAction(TakeStuffAction)
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164
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165
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166 class GiveStuffAction(InventoryAction):
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167 """
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168 L{InventoryAction} used to move items from the player's inventory to the
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169 NPC's inventory.
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170 """
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171 keyword = 'give_stuff'
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172
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173 def __call__(self, game_state):
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174 """
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175 Move items from the player's inventory to the NPC's inventory.
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176
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177 @param game_state: variables and functions that make up the current
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178 game state.
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179 @type game_state: dict of objects
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180 """
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181 item_types = self.item_types
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182 for item_type in item_types:
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183 item = container.take_item(game_state['pc'].container, item_type)
0
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184 if (item):
109
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185 container.put_item(game_state['npc'].container, item)
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186 print("You give the {0} to {1}".format(item_type,
109
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187 game_state['npc'].
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188 description.view_name))
0
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189 else:
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190 print("You don't have the {0}".format(item_type))
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191 DialogueAction.registerAction(GiveStuffAction)
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192
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193
170
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194 class ReplaceItemAction(InventoryAction):
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195 """
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196 L{InventoryAction} used to replace an item with another in the player's
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197 inventory.
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198 """
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199
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200 keyword = 'replace_item'
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201
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202 def __call__(self, game_state):
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203 """
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204 Take an item from the player and place another at its place.
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205
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206 @param game_state: variables and functions that make up the current
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207 game state.
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208 @type game_state: dict of objects
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209 """
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210 old_type = self.item_types[0]
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211 new_type = self.item_types[1]
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212 item = container.take_item(game_state['pc'].container, old_type)
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213 if item:
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214 model = game_state['model']
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215 new_item = model.createItemByType(new_type, new_type,
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216 item.entity.world)
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217 container.put_item(game_state['pc'].container,
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218 new_item.containable, item.slot)
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219 model.deleteObject(item.entity.general.identifier)
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220 item.delete()
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221 print("{0} took the {1} and gave you the {2}".format(
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222 game_state['npc'].description.view_name, old_type, item_type))
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223 else:
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224 print("You don't have the {0}".format(old_type))
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225 DialogueAction.registerAction(ReplaceItemAction)
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226
0
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227 class QuestAction(DialogueAction):
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228 """
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229 Abstract base class for quest-related L{DialogueActions<DialogueAction>}.
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230 """
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231 def __init__(self, *args, **kwargs):
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232 """
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233 Initialize a new L{QuestAction} instance.
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234
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235 @param args: positional arguments.
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236 @type args: list of objects
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237 @param quest_id: ID of the quest to manipulate.
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238 @type quest_id: basestring
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239 @param kwargs: keyword arguments (not used).
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240 @type kwargs: dict of objects
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241 """
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242 DialogueAction.__init__(self, *args, **kwargs)
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243 self.quest_id = kwargs['quest'] if 'quest' in kwargs else args[0]
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244
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245
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246 class StartQuestAction(QuestAction):
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247 """L{QuestAction} used to activate a quest."""
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248 keyword = 'start_quest'
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249
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250 def __call__(self, game_state):
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251 """
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252 Activate a quest.
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253
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254 @param game_state: variables and functions that make up the current
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255 game state.
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256 @type game_state: dict of objects
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257 """
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258 quest_id = self.quest_id
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259 print("You've picked up the \"{0}\" quest!".format(quest_id))
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260 game_state['quest'].activateQuest(quest_id)
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261 DialogueAction.registerAction(StartQuestAction)
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262
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263
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264 class CompleteQuestAction(QuestAction):
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265 """
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266 L{QuestAction} used to mark a quest as successfully finished/completed.
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267 """
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268 keyword = 'complete_quest'
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269
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270 def __call__(self, game_state):
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271 """
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272 Successfully complete a quest.
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273
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274 @param game_state: variables and functions that make up the current
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275 game state.
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276 @type game_state: dict of objects
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277 """
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278 quest_id = self.quest_id
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279 print("You've finished the \"{0}\" quest".format(quest_id))
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280 game_state['quest'].finishQuest(quest_id)
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281 DialogueAction.registerAction(CompleteQuestAction)
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282
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283
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284 class FailQuestAction(QuestAction):
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285 """L{QuestAction} used to fail an active quest."""
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286 keyword = 'fail_quest'
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287
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288 def __call__(self, game_state):
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289 """
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290 Fail an active quest.
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291
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292 @param game_state: variables and functions that make up the current
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293 game state.
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294 @type game_state: dict of objects
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295 """
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296 quest_id = self.quest_id
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297 print("You've failed the \"{0}\" quest".format(quest_id))
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298 game_state['quest'].failQuest(quest_id)
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299 DialogueAction.registerAction(FailQuestAction)
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300
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301
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302 class RestartQuestAction(QuestAction):
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303 """L{QuestAction} used to restart an active quest."""
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304 keyword = 'restart_quest'
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305
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306 def __call__(self, game_state):
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307 """
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308 Restart an active quest.
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309
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310 @param game_state: variables and functions that make up the current
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311 game state.
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312 @type game_state: dict of objects
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313 """
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314 quest_id = self.quest_id
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315 print("You've restarted the \"{0}\" quest".format(quest_id))
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316 game_state['quest'].restartQuest(quest_id)
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317 DialogueAction.registerAction(RestartQuestAction)
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318
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319
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320 class QuestVariableAction(QuestAction):
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321 """
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322 Base class for L{QuestActions<QuestAction>} that modify quest
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323 variables.
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324 """
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325 def __init__(self, *args, **kwargs):
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326 """
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327 Initialize a new L{QuestVariableAction} instance.
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328
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329 @param args: positional arguments (not used).
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330 @type args: list of objects
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331 @param kwargs: keyword arguments.
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332 @type kwargs: dict of objects
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333 @keyword quest: ID of the quest whose variable should be modified.
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334 @type quest: basestring
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335 @keyword variable: name of the quest variable to modify.
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336 @type variable: basestring
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337 @keyword value: new value that should be used to modify the quest
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338 variable.
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339 @type value: object
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340 """
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341 QuestAction.__init__(self, *args, **kwargs)
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342 self.variable_name = kwargs['variable']
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343 self.value = kwargs['value']
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344
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345
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346 class IncreaseQuestVariableAction(QuestVariableAction):
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347 """
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348 L{QuestVariableAction} used to increase the value of a quest variable by a
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349 set amount.
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350 """
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351 keyword = 'increase_quest_variable'
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352
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353 def __call__(self, game_state):
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354 """
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355 Increase a quest variable by a set amount.
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356
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357 @param game_state: variables and functions that make up the current
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358 game state.
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359 @type game_state: dict of objects
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360 """
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361 quest_id = self.quest_id
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362 variable_name = self.variable_name
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363 value = self.value
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364 print('Increased {0} by {1}'.format(variable_name, value))
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365 game_state['quest'][quest_id].increaseValue(variable_name, value)
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366 DialogueAction.registerAction(IncreaseQuestVariableAction)
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367
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368
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369 class DecreaseQuestVariableAction(QuestVariableAction):
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370 """
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371 L{QuestVariableAction} used to decrease the value of a quest variable by a
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372 set amount.
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373 """
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374 keyword = 'decrease_quest_variable'
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375
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376 def __call__(self, game_state):
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377 """
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378 Decrease a quest variable by a set amount.
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379
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380 @param game_state: variables and functions that make up the current
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381 game state.
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382 @type game_state: dict of objects
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383 """
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384 quest_id = self.quest_id
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385 variable_name = self.variable_name
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386 value = self.value
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387 print('Decreased {0} by {1}'.format(variable_name, value))
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388 game_state['quest'][quest_id].decreaseValue(variable_name, value)
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389 DialogueAction.registerAction(DecreaseQuestVariableAction)
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390
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391
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392 class SetQuestVariableAction(QuestVariableAction):
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393 """
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394 L{QuestVariableAction} used to set the value of a quest variable.
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395 """
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396 keyword = 'set_quest_variable'
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397
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398 def __call__(self, game_state):
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399 """
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400 Set the value of a quest variable.
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401
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402 @param game_state: variables and functions that make up the current
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403 game state.
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404 @type game_state: dict of objects
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405 """
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406 quest_id = self.quest_id
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407 variable_name = self.variable_name
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408 value = self.value
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409 print('Set {0} to {1}'.format(variable_name, value))
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410 game_state['quest'][quest_id].setValue(variable_name, value)
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411 DialogueAction.registerAction(SetQuestVariableAction)