annotate quest_engine.py @ 120:adbcdb900fa9

Modified InventoryGrid to set a name for each slot containing the index. Added getSlot method to InventoryGrid. Renamed InventoryGUI class to CharacterGUI. Added InventoryGUI class which handles the inventory part of the CharacterGUI. An InventoryGUI instance is now created in CharacterGUI.
author KarstenBock@gmx.net
date Wed, 05 Oct 2011 12:59:22 +0200
parents 06145a6ee387
children
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 import yaml
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17
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18 from parpg.common.utils import locateFiles
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19 from parpg import vfs
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20
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21 class Quest(object):
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22 """Class that holds the information for a quest"""
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23 def __init__(self, quest_id, quest_giver_id, quest_name, description,
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24 variables):
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25 self.quest_id = quest_id
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26 self.quest_giver_id = quest_giver_id
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27 self.quest_name = quest_name
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28 self.description = description
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29 self.quest_variables = variables
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30
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31 def setValue(self, variable_name, value):
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32 """Set the value of a quest variable
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33 @param variable_name: the name of the variable to set
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34 @param value: the value you want to assign to the variable
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35 @return: True on success
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36 @return: False when it failes"""
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37
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38 if self.quest_variables.has_key(variable_name):
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39 self.quest_variables[variable_name]["value"] = value
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40 return True
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41 else:
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42 return False
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43
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44 def getValue(self, variable_name):
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45 """Get the value of a quest_variable
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46 @param variable_name: the name of the variable to set
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47 @return: the value of the quest_variable"""
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48 if self.quest_variables.has_key(variable_name):
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49 return self.quest_variables[variable_name]["value"]
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50 else:
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51 return False
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52
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53 def getGoalValue(self, variable_name):
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54 """Get the goal value of a quest_variable
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55 @param variable_name: the name of the variable to set
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56 @return: the goal value of the quest variable"""
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57 if self.quest_variables.has_key(variable_name):
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58 return self.quest_variables[variable_name]["goal_value"]
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59 else:
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60 return False
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61
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62 def increaseValue(self, variable_name, value):
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63 """Increase a variable by a specified value
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64 @param variable_name: the name of the variable to set
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65 @param value: the value you want to increase the variable with
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66 @return: True on success
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67 @return: False when it fails"""
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68 if self.quest_variables.has_key(variable_name):
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69 self.quest_variables[variable_name]["value"] += value
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70 return True
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71 else:
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72 return False
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73
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74 def decreaseValue(self, variable_name, value):
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75 """Decrease a variable by a specified value
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76 @param variable_name: the name of the variable to set
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77 @param value: the value you want to decrease the variable with
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78 @return: True on success
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79 @return: False when it failes"""
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80 if self.quest_variables.has_key(variable_name):
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81 self.quest_variables[variable_name]["value"] -= value
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82 return True
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83 else:
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84 return False
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85
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86 def isGoalValue(self, variable_name):
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87 """Check if the variable has reached it's goal value
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88 @param variable_name: the name of the variable to check
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89 @return: True when the variable has reached the goal value
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90 @return: False when it has not reached the goal value"""
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91 if self.quest_variables.has_key(variable_name):
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92 return self.quest_variables[variable_name]["value"] == \
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93 self.quest_variables[variable_name]["goal_value"]
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94 else:
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95 return False
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96
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97 def isEqualOrBiggerThanGoalValue(self, variable_name):
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98 """Check if the variable is equil or bigger then it's goal value
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99 @param variable_name: the name of the variable to set
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100 @return: True when it has reached or exceeded the goal value
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101 @return: False when it has not reached or exceeded the goal value """
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102 if variable_name in self.quest_variables:
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103 return self.quest_variables[variable_name]["value"] >= \
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104 self.quest_variables[variable_name]["goal_value"]
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105 else:
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106 return False
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107
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108 def restartQuest(self):
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109 """Restarts the quest. This sets all values to the reset values,
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110 if there is a reset value present """
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111 for variable in self.quest_variables.itervalues():
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112 if variable.has_key("reset_value"):
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113 variable["value"] = variable["reset_value"]
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114
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115 class QuestEngine(dict):
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116 def __init__(self, quest_dir):
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117 """Create a quest engine object"""
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118 dict.__init__(self)
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119 self.empty_quest = Quest(None, None, None, None, {})
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120 self.quests = {}
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121 self.active_quests = []
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122 self.finished_quests = []
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123 self.failed_quests = []
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124 self.quest_dir = quest_dir
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125
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126 def __str__(self):
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127 return self.quests.__str__()
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128
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129 def __getitem__(self, key):
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130 try:
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131 return self.quests.__getitem__(key)
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132 except KeyError:
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133 return self.empty_quest
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134
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135 def items(self):
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136 return self.quests.items()
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137
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138 def values(self):
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139 return self.quests.values()
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140
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141 def keys(self):
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142 return self.quests.keys()
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143
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144 def readQuests(self):
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145 """Reads in the quests in the quest directory"""
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146 filepaths = locateFiles("*.yaml", self.quest_dir)
0
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147 self.quests = {}
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148 self.active_quests = []
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149 self.finished_quests = []
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150 self.failed_quests = []
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151 for filepath in filepaths:
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152 quest_file = vfs.VFS.open(filepath)
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153 tree = yaml.load(quest_file)
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154 quest_properties = tree["QUEST_PROPERTIES"]
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155 variable_defines = tree["DEFINES"]
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156
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157 self.quests[quest_properties["quest_id"]] = \
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158 Quest(quest_properties["quest_id"],
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159 quest_properties["quest_giver_id"],
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160 quest_properties["quest_name"],
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161 quest_properties["description"],
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162 variable_defines)
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163
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164 def activateQuest(self, quest_id):
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165 """Add a quest to the quest log
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166 @param quest: the quest id of the quest to add to the quest log
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167 @return: True if succesfully added
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168 @return: False if failed to add"""
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169
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170 if quest_id in self.quests \
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171 and not (quest_id in self.active_quests \
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172 or quest_id in self.finished_quests):
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173 self.active_quests.append(quest_id)
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174 return True
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175 return False
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176
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177 def finishQuest(self, quest_id):
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178 """Move a quest to the finished quests log
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179 @param quest_id: The id of the quest you want to move
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180 @return: True on success
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181 @return: False when it failes"""
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182 if quest_id in self.active_quests:
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183 self.finished_quests.append(quest_id)
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184 self.active_quests.remove(quest_id)
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185 return True
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186 return False
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187
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188 def restartQuest(self, quest_id):
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189 """Restart a quest
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190 @param quest_id: ID of the quest you want to restart
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191 @return: True on success
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192 @return: False when it failes"""
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193 if quest_id in self.active_quests:
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194 self.quests[quest_id].restartQuest()
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195
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196 def failQuest(self, quest_id):
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197 """Set a quest to failed
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198 @param quest_id: ID of the quest you want to fail
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199 @return: True on success
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200 @return: False when it failes"""
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201 if quest_id in self.active_quests:
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202 self.failed_quests.append(quest_id)
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203 self.active_quests.remove(quest_id)
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204 return True
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205 return False
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206
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207 def hasQuest(self, quest_id):
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208 """Check whether a quest is present in the quest_list.
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209 It doesn't matter which state the quest is, or even if its
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210 started.
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211 @param quest_id: ID of the quest you want to check
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212 @return: True on when the quest is in the quest log
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213 @return: False when it's not in the quest log"""
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214 return quest_id in self.quests
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215
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216 def hasActiveQuest(self, quest_id):
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217 """Check whether a quest is in the quest log
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218 @param quest_id: ID of the quest you want to check
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219 @return: True on when the quest is in the quest log
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220 @return: False when it's not in the quest log"""
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221 return quest_id in self.active_quests
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222
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223 def hasFinishedQuest(self, quest_id):
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224 """Check whether a quest is in the finished quests log
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225 @param quest_id: ID of the quest you want to check
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226 @return: True on when the quest is in the finished quests log
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227 @return: False when it's not in the finished quests log"""
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228 return quest_id in self.finished_quests
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229
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230 def hasFailedQuest(self, quest_id):
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231 """Check whether a quest is in the failed quests log
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232 @param quest_id: ID of the quest you want to check
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233 @return: True on when the quest is in the failed quests log
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234 @return: False when it's not in the failed quests log"""
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235 return quest_id in self.failed_quests
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236
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237 def getStateForSaving(self):
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238 """Prepares state for saving
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239 @type state: dictionary
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240 @param state: State of the object"""
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241 ret_dict = {}
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242 variables_dict = ret_dict["Variables"] = {}
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243 for quest in self.quests.itervalues():
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244 quest_dict = variables_dict[quest.quest_id] = {}
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245 for variable, data in quest.quest_variables.iteritems():
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246 quest_dict[variable] = data["value"]
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247 ret_dict["ActiveQuests"] = self.active_quests
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248 ret_dict["FinishedQuests"] = self.finished_quests
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249 ret_dict["FailedQuests"] = self.failed_quests
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250 return ret_dict
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251
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252 def restoreFromState(self, state):
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253 """Restores the state"""
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254 variables_dict = state["Variables"]
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255 for quest_id, variables in variables_dict.iteritems():
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256 for variable, value in variables.iteritems():
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257 self.quests[quest_id].setValue(variable, value)
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258 self.active_quests = state["ActiveQuests"]
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259 self.finished_quests = state["FinishedQuests"]
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260 self.failed_quests = state["FailedQuests"]