Mercurial > boomslang
annotate pyntnclick/state.py @ 612:cfc16ded7b34 pyntnclick
Fix scene/screen confusion
author | Neil Muller <neil@dip.sun.ac.za> |
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date | Sat, 11 Feb 2012 21:12:45 +0200 |
parents | a25cd1c6335a |
children | 85153f422522 |
rev | line source |
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1 """Utilities and base classes for dealing with scenes.""" |
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2 |
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3 import copy |
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4 |
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5 from albow.utils import frame_rect |
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6 from widgets import BoomLabel |
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7 from pygame.rect import Rect |
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8 from pygame.color import Color |
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9 |
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10 |
78 | 11 class Result(object): |
12 """Result of interacting with a thing""" | |
13 | |
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14 def __init__(self, message=None, soundfile=None, detail_view=None, |
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15 style=None, close_detail=False, end_game=False): |
78 | 16 self.message = message |
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17 self.soundfile = soundfile |
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18 self.detail_view = detail_view |
210
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19 self.style = style |
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20 self.close_detail = close_detail |
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21 self.end_game = end_game |
78 | 22 |
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23 def play_sound(self, scene_widget): |
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24 if self.soundfile: |
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25 sound = scene_widget.game.gd.sound.get_sound(self.soundfile) |
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26 sound.play() |
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27 |
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28 def process(self, scene_widget): |
126
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29 """Helper function to do the right thing with a result object""" |
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30 self.play_sound(scene_widget) |
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31 if self.message: |
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32 scene_widget.show_message(self.message, self.style) |
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33 if self.detail_view: |
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34 scene_widget.show_detail(self.detail_view) |
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35 if (self.close_detail |
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36 and hasattr(scene_widget, 'parent') |
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37 and hasattr(scene_widget.parent, 'clear_detail')): |
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38 scene_widget.parent.clear_detail() |
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39 if self.end_game: |
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40 scene_widget.end_game() |
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41 |
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42 |
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43 def handle_result(result, scene_widget): |
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44 """Handle dealing with result or result sequences""" |
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45 if result: |
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46 if hasattr(result, 'process'): |
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47 result.process(scene_widget) |
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48 else: |
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49 for res in result: |
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50 if res: |
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51 # List may contain None's |
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52 res.process(scene_widget) |
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53 |
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54 |
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55 class Game(object): |
7
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56 """Complete game state. |
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57 |
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58 Game state consists of: |
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59 |
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60 * items |
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61 * scenes |
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62 """ |
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63 def __init__(self, gd): |
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64 # game description |
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65 self.gd = gd |
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66 # map of scene name -> Scene object |
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67 self.scenes = {} |
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68 # map of detail view name -> DetailView object |
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69 self.detail_views = {} |
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70 # map of item name -> Item object |
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71 self.items = {} |
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72 # list of item objects in inventory |
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73 self.inventory = [] |
73 | 74 # currently selected tool (item) |
75 self.tool = None | |
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76 # Global game data |
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77 self.data = {} |
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78 # current scene |
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79 self.current_scene = None |
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80 # current detail view |
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81 self.current_detail = None |
120 | 82 # scene we came from, for enter and leave processing |
83 self.previous_scene = None | |
84 # scene transion helpers | |
85 self.do_check = None | |
86 self.old_pos = None | |
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87 # current thing |
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88 self.current_thing = None |
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89 self.highlight_override = False |
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90 # debug rects |
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91 self.debug_rects = False |
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92 |
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93 def set_debug_rects(self, value=True): |
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94 self.debug_rects = value |
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95 |
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96 def add_scene(self, scene): |
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97 scene.set_game(self) |
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98 self.scenes[scene.name] = scene |
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99 |
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100 def add_detail_view(self, detail_view): |
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101 detail_view.set_game(self) |
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102 self.detail_views[detail_view.name] = detail_view |
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103 |
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104 def add_item(self, item): |
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105 item.set_game(self) |
35 | 106 self.items[item.name] = item |
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107 |
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108 def load_scenes(self, modname): |
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109 mod = __import__("gamelib.scenes.%s" % (modname,), fromlist=[modname]) |
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110 for scene_cls in mod.SCENES: |
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111 scene = scene_cls(self) |
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112 self.add_scene(scene) |
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113 if hasattr(mod, 'DETAIL_VIEWS'): |
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114 for scene_cls in mod.DETAIL_VIEWS: |
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115 scene = scene_cls(self) |
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116 self.add_detail_view(scene) |
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117 |
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118 def set_current_scene(self, name): |
120 | 119 old_scene = self.current_scene |
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120 self.current_scene = self.scenes[name] |
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121 self.current_thing = None |
120 | 122 if old_scene and old_scene != self.current_scene: |
123 self.previous_scene = old_scene | |
124 self.set_do_enter_leave() | |
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125 |
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126 def set_current_detail(self, name): |
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127 self.current_thing = None |
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128 if name is None: |
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129 self.current_detail = None |
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130 else: |
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131 self.current_detail = self.detail_views[name] |
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132 return self.current_detail |
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133 |
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134 def add_inventory_item(self, name): |
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135 self.inventory.append(self.items[name]) |
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136 |
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137 def is_in_inventory(self, name): |
340
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138 if name in self.items: |
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139 return self.items[name] in self.inventory |
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140 return False |
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141 |
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142 def remove_inventory_item(self, name): |
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143 self.inventory.remove(self.items[name]) |
117
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144 # Unselect tool if it's removed |
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145 if self.tool == self.items[name]: |
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146 self.set_tool(None) |
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147 |
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148 def replace_inventory_item(self, old_item_name, new_item_name): |
167
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149 """Try to replace an item in the inventory with a new one""" |
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150 try: |
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151 index = self.inventory.index(self.items[old_item_name]) |
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152 self.inventory[index] = self.items[new_item_name] |
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153 if self.tool == self.items[old_item_name]: |
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154 self.set_tool(self.items[new_item_name]) |
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155 except ValueError: |
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156 return False |
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157 return True |
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158 |
73 | 159 def set_tool(self, item): |
160 self.tool = item | |
161 | |
162 def interact(self, pos): | |
78 | 163 return self.current_scene.interact(self.tool, pos) |
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164 |
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165 def interact_detail(self, pos): |
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166 return self.current_detail.interact(self.tool, pos) |
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167 |
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168 def cancel_doodah(self, screen): |
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169 if self.tool: |
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170 self.set_tool(None) |
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171 elif self.current_detail: |
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172 screen.state_widget.clear_detail() |
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173 |
314
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174 def do_enter_detail(self): |
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175 if self.current_detail: |
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176 self.current_detail.enter() |
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177 |
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178 def do_leave_detail(self): |
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179 if self.current_detail: |
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180 self.current_detail.leave() |
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181 |
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182 def animate(self): |
120 | 183 if not self.do_check: |
184 return self.current_scene.animate() | |
185 | |
187
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186 def check_enter_leave(self, screen): |
120 | 187 if not self.do_check: |
188 return None | |
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189 if self.do_check == self.gd.constants.leave: |
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190 self.do_check = self.gd.constants.enter |
120 | 191 if self.previous_scene: |
192 return self.previous_scene.leave() | |
193 return None | |
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194 elif self.do_check == self.gd.constants.enter: |
120 | 195 self.do_check = None |
196 # Fix descriptions, etc. | |
197 if self.old_pos: | |
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198 self.current_scene.update_current_thing(self.old_pos) |
120 | 199 return self.current_scene.enter() |
200 raise RuntimeError('invalid do_check value %s' % self.do_check) | |
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201 |
120 | 202 def set_do_enter_leave(self): |
203 """Flag that we need to run the enter loop""" | |
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204 self.do_check = self.gd.constants.leave |
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205 |
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206 |
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207 class GameDeveloperGizmo(object): |
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208 """Base class for objects game developers see.""" |
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209 |
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210 def __init__(self): |
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211 """Set """ |
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212 self.game = None |
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213 self.gd = None |
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214 self.resource = None |
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215 self.sound = None |
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216 |
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217 def set_game(self, game): |
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218 self.game = game |
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219 self.gd = game.gd |
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220 self.resource = self.gd.resource |
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221 self.sound = self.gd.sound |
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222 self.setup() |
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223 |
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224 def setup(self): |
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225 """Game developers should override this to do their setup. |
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226 |
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227 It will be called after all the useful state functions have been |
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228 set. |
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229 """ |
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230 pass |
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231 |
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232 |
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233 class StatefulGizmo(GameDeveloperGizmo): |
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234 |
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235 # initial data (optional, defaults to none) |
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236 INITIAL_DATA = None |
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237 STATE_KEY = None |
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238 |
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239 def __init__(self): |
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240 GameDeveloperGizmo.__init__(self) |
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241 self.state_key = self.STATE_KEY |
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242 self.state = None # set this with set_state if required |
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243 |
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244 def set_state(self, state): |
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245 """Set the state object and initialize if needed""" |
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246 self.state = state |
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247 if self.state_key not in self.state: |
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248 self.state[self.state_key] = {} |
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249 if self.INITIAL_DATA: |
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250 # deep copy of INITIAL_DATA allows lists, sets and |
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251 # other mutable types to safely be used in INITIAL_DATA |
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252 self.state[self.state_key].update( |
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253 copy.deepcopy(self.INITIAL_DATA)) |
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254 |
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255 def set_data(self, key, value): |
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256 if self.state: |
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257 self.state[self.state_key][key] = value |
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258 |
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259 def get_data(self, key): |
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260 if self.state: |
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261 return self.state[self.state_key].get(key, None) |
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262 |
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263 |
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264 class Scene(StatefulGizmo): |
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265 """Base class for scenes.""" |
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266 |
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267 # sub-folder to look for resources in |
22 | 268 FOLDER = None |
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269 |
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270 # name of background image resource |
22 | 271 BACKGROUND = None |
272 | |
28
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273 # name of scene (optional, defaults to folder) |
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274 NAME = None |
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275 |
278 | 276 # Offset of the background image |
277 OFFSET = (0, 0) | |
278 | |
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279 def __init__(self, state): |
55
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280 StatefulGizmo.__init__(self) |
28
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281 # scene name |
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282 self.name = self.NAME if self.NAME is not None else self.FOLDER |
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283 self.state_key = self.name |
22 | 284 # map of thing names -> Thing objects |
285 self.things = {} | |
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286 self._background = None |
7
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287 |
603
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288 def set_game(self, game): |
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289 super(Scene, self).set_game(game) |
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290 self.set_state(game.data) |
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291 |
35 | 292 def add_item(self, item): |
603
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293 self.game.add_item(item) |
35 | 294 |
39
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295 def add_thing(self, thing): |
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296 self.things[thing.name] = thing |
603
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297 thing.set_game(self.game) |
41
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298 thing.set_scene(self) |
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299 |
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300 def remove_thing(self, thing): |
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301 del self.things[thing.name] |
603
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302 if thing is self.game.current_thing: |
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303 self.game.current_thing.leave() |
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304 self.game.current_thing = None |
39
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305 |
319
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306 def _get_description(self): |
603
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307 text = (self.game.current_thing and |
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308 self.game.current_thing.get_description()) |
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309 if text is None: |
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310 return None |
79
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311 label = BoomLabel(text) |
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312 label.set_margin(5) |
76
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|
313 label.border_width = 1 |
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changeset
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314 label.border_color = (0, 0, 0) |
326
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315 label.bg_color = Color(210, 210, 210, 255) |
76
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316 label.fg_color = (0, 0, 0) |
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|
317 return label |
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|
318 |
187
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changeset
|
319 def draw_description(self, surface, screen): |
319
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|
320 description = self._get_description() |
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changeset
|
321 if description is not None: |
326
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324
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|
322 w, h = description.size |
187
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changeset
|
323 sub = screen.get_root().surface.subsurface( |
529
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PEP-8 gamescreen and state.
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|
324 Rect(400 - w / 2, 5, w, h)) |
319
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|
325 description.draw_all(sub) |
76
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changeset
|
326 |
526
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changeset
|
327 def _cache_background(self): |
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|
328 if self.BACKGROUND and not self._background: |
592
4e9178215e75
Introduce .setup() for GameDeveloperGizmos.
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parents:
588
diff
changeset
|
329 self._background = self.resource.get_image( |
586
cf65e91b30b1
Use load_image where possible
Stefano Rivera <stefano@rivera.za.net>
parents:
576
diff
changeset
|
330 (self.FOLDER, self.BACKGROUND)) |
526
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|
331 |
22 | 332 def draw_background(self, surface): |
526
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changeset
|
333 self._cache_background() |
130
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InteractText for mocking up scenes. Allow backgrounds to be None. Mock up map.
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diff
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|
334 if self._background is not None: |
278 | 335 surface.blit(self._background, self.OFFSET, None) |
130
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diff
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|
336 else: |
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diff
changeset
|
337 surface.fill((200, 200, 200)) |
18
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Start of scene drawing framework.
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|
338 |
23
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diff
changeset
|
339 def draw_things(self, surface): |
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diff
changeset
|
340 for thing in self.things.itervalues(): |
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diff
changeset
|
341 thing.draw(surface) |
18
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diff
changeset
|
342 |
187
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changeset
|
343 def draw(self, surface, screen): |
22 | 344 self.draw_background(surface) |
23
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diff
changeset
|
345 self.draw_things(surface) |
187
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|
346 self.draw_description(surface, screen) |
18
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changeset
|
347 |
71
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diff
changeset
|
348 def interact(self, item, pos): |
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|
349 """Interact with a particular position. |
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diff
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|
350 |
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diff
changeset
|
351 Item may be an item in the list of items or None for the hand. |
78 | 352 |
353 Returns a Result object to provide feedback to the player. | |
71
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diff
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|
354 """ |
603
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diff
changeset
|
355 if self.game.current_thing is not None: |
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diff
changeset
|
356 return self.game.current_thing.interact(item) |
71
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changeset
|
357 |
105
65976205fc2d
Rough Stab at basic animation support
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diff
changeset
|
358 def animate(self): |
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Rough Stab at basic animation support
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diff
changeset
|
359 """Animate all the things in the scene. |
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diff
changeset
|
360 |
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diff
changeset
|
361 Return true if any of them need to queue a redraw""" |
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Rough Stab at basic animation support
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101
diff
changeset
|
362 result = False |
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Rough Stab at basic animation support
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101
diff
changeset
|
363 for thing in self.things.itervalues(): |
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Rough Stab at basic animation support
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101
diff
changeset
|
364 if thing.animate(): |
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Rough Stab at basic animation support
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parents:
101
diff
changeset
|
365 result = True |
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Rough Stab at basic animation support
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101
diff
changeset
|
366 return result |
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Rough Stab at basic animation support
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101
diff
changeset
|
367 |
120 | 368 def enter(self): |
369 return None | |
370 | |
371 def leave(self): | |
372 return None | |
373 | |
324
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319
diff
changeset
|
374 def update_current_thing(self, pos): |
603
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changeset
|
375 if self.game.current_thing is not None: |
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changeset
|
376 if not self.game.current_thing.contains(pos): |
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changeset
|
377 self.game.current_thing.leave() |
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parents:
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diff
changeset
|
378 self.game.current_thing = None |
324
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319
diff
changeset
|
379 for thing in self.things.itervalues(): |
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Fixed mouse and cursor handling.
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319
diff
changeset
|
380 if thing.contains(pos): |
603
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diff
changeset
|
381 thing.enter(self.game.tool) |
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diff
changeset
|
382 self.game.current_thing = thing |
324
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319
diff
changeset
|
383 break |
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parents:
319
diff
changeset
|
384 |
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Fixed mouse and cursor handling.
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parents:
319
diff
changeset
|
385 def mouse_move(self, pos): |
71
99c5506de7ea
Start of interact handling.
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parents:
68
diff
changeset
|
386 """Call to check whether the cursor has entered / exited a thing. |
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Start of interact handling.
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changeset
|
387 |
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diff
changeset
|
388 Item may be an item in the list of items or None for the hand. |
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diff
changeset
|
389 """ |
324
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319
diff
changeset
|
390 self.update_current_thing(pos) |
71
99c5506de7ea
Start of interact handling.
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parents:
68
diff
changeset
|
391 |
125
d3ca34a664fd
Some detail view and data cleanup.
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124
diff
changeset
|
392 def get_detail_size(self): |
526
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Defer some resource loading until it's actually necessary.
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parents:
520
diff
changeset
|
393 self._cache_background() |
127
9646e7c8bb97
Size detail window based on the Scene background image.
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parents:
126
diff
changeset
|
394 return self._background.get_size() |
125
d3ca34a664fd
Some detail view and data cleanup.
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parents:
124
diff
changeset
|
395 |
595
59f1ee3f5632
Remove albow.resources in a few more places.
Jeremy Thurgood <firxen@gmail.com>
parents:
592
diff
changeset
|
396 def get_image(self, *image_name_fragments, **kw): |
59f1ee3f5632
Remove albow.resources in a few more places.
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parents:
592
diff
changeset
|
397 return self.resource.get_image(image_name_fragments, **kw) |
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Remove albow.resources in a few more places.
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parents:
592
diff
changeset
|
398 |
7
d7c9d8273d7f
Start of base classes for game state.
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parents:
diff
changeset
|
399 |
488
d8087848722d
Factor Thing interactive stuff out into a mixing. (Items to follow.)
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parents:
487
diff
changeset
|
400 class InteractiveMixin(object): |
519
8f3c82c685a4
Fix is_interactive() by adding tool param.
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parents:
518
diff
changeset
|
401 def is_interactive(self, tool=None): |
488
d8087848722d
Factor Thing interactive stuff out into a mixing. (Items to follow.)
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parents:
487
diff
changeset
|
402 return True |
d8087848722d
Factor Thing interactive stuff out into a mixing. (Items to follow.)
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parents:
487
diff
changeset
|
403 |
492
c1f4f9149349
Unify Thing and Item interaction handling.
Jeremy Thurgood <firxen@gmail.com>
parents:
491
diff
changeset
|
404 def interact(self, tool): |
519
8f3c82c685a4
Fix is_interactive() by adding tool param.
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parents:
518
diff
changeset
|
405 if not self.is_interactive(tool): |
492
c1f4f9149349
Unify Thing and Item interaction handling.
Jeremy Thurgood <firxen@gmail.com>
parents:
491
diff
changeset
|
406 return None |
c1f4f9149349
Unify Thing and Item interaction handling.
Jeremy Thurgood <firxen@gmail.com>
parents:
491
diff
changeset
|
407 if tool is None: |
488
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408 return self.interact_without() |
492
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409 handler = getattr(self, 'interact_with_' + tool.tool_name, None) |
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410 inverse_handler = self.get_inverse_interact(tool) |
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411 if handler is not None: |
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412 return handler(tool) |
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413 elif inverse_handler is not None: |
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414 return inverse_handler(self) |
488
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415 else: |
492
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416 return self.interact_default(tool) |
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417 |
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418 def get_inverse_interact(self, tool): |
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419 return None |
488
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420 |
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421 def interact_without(self): |
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422 return self.interact_default(None) |
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423 |
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424 def interact_default(self, item=None): |
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425 return None |
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426 |
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427 |
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428 class Thing(StatefulGizmo, InteractiveMixin): |
22 | 429 """Base class for things in a scene that you can interact with.""" |
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430 |
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431 # name of thing |
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432 NAME = None |
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433 |
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434 # sub-folder to look for resources in (defaults to scenes folder) |
41
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435 FOLDER = None |
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436 |
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437 # list of Interact objects |
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438 INTERACTS = {} |
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439 |
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440 # name first interact |
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441 INITIAL = None |
41
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442 |
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443 # Interact rectangle hi-light color (for debugging) |
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444 # (set to None to turn off) |
282
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445 _interact_hilight_color = Color('red') |
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446 |
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447 def __init__(self): |
55
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448 StatefulGizmo.__init__(self) |
86
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449 # name of the thing |
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450 self.name = self.NAME |
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451 # folder for resource (None is overridden by scene folder) |
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452 self.folder = self.FOLDER |
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453 self.state_key = self.NAME |
86
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454 # interacts |
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455 self.interacts = self.INTERACTS |
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456 # these are set by set_scene |
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457 self.scene = None |
86
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458 self.current_interact = None |
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459 self.rect = None |
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460 self.orig_rect = None |
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461 |
278 | 462 def _fix_rect(self): |
463 """Fix rects to compensate for scene offset""" | |
280
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464 # Offset logic is to always work with copies, to avoid |
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465 # flying effects from multiple calls to _fix_rect |
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466 # See footwork in draw |
278 | 467 if hasattr(self.rect, 'collidepoint'): |
280
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468 self.rect = self.rect.move(self.scene.OFFSET) |
278 | 469 else: |
280
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470 self.rect = [x.move(self.scene.OFFSET) for x in self.rect] |
278 | 471 |
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472 def set_scene(self, scene): |
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473 assert self.scene is None |
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474 self.scene = scene |
86
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475 if self.folder is None: |
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476 self.folder = scene.FOLDER |
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477 self.game = scene.game |
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478 self.set_state(self.game.data) |
86
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479 for interact in self.interacts.itervalues(): |
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480 interact.set_thing(self) |
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481 self.set_interact(self.INITIAL) |
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|
482 |
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483 def set_interact(self, name): |
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484 self.current_interact = self.interacts[name] |
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485 self.rect = self.current_interact.interact_rect |
278 | 486 if self.scene: |
487 self._fix_rect() | |
86
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488 assert self.rect is not None, name |
39
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|
489 |
94
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490 def contains(self, pos): |
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491 if hasattr(self.rect, 'collidepoint'): |
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492 return self.rect.collidepoint(pos) |
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493 else: |
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|
494 # FIXME: add sanity check |
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495 for rect in list(self.rect): |
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|
496 if rect.collidepoint(pos): |
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|
497 return True |
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|
498 return False |
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|
499 |
63
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diff
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|
500 def get_description(self): |
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|
501 return None |
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|
502 |
71
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Start of interact handling.
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|
503 def enter(self, item): |
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|
504 """Called when the cursor enters the Thing.""" |
139
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|
505 pass |
71
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|
506 |
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|
507 def leave(self): |
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508 """Called when the cursr leaves the Thing.""" |
139
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|
509 pass |
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diff
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|
510 |
105
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Rough Stab at basic animation support
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diff
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|
511 def animate(self): |
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512 return self.current_interact.animate() |
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diff
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|
513 |
23
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Add code for blitting Scene.
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|
514 def draw(self, surface): |
280
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515 old_rect = self.current_interact.rect |
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|
516 if old_rect: |
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517 self.current_interact.rect = old_rect.move(self.scene.OFFSET) |
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|
518 self.current_interact.draw(surface) |
280
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519 self.current_interact.rect = old_rect |
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|
520 if self.game.debug_rects and self._interact_hilight_color: |
94
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521 if hasattr(self.rect, 'collidepoint'): |
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|
522 frame_rect(surface, self._interact_hilight_color, |
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523 self.rect.inflate(1, 1), 1) |
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524 else: |
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525 for rect in self.rect: |
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526 frame_rect(surface, self._interact_hilight_color, |
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527 rect.inflate(1, 1), 1) |
23
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diff
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|
528 |
22 | 529 |
592
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Introduce .setup() for GameDeveloperGizmos.
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diff
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|
530 class Item(GameDeveloperGizmo, InteractiveMixin): |
22 | 531 """Base class for inventory items.""" |
532 | |
35 | 533 # image for inventory |
534 INVENTORY_IMAGE = None | |
32
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Add helper for adding items. Give items names. Make things take a rectangle.
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|
535 |
490 | 536 # name of item |
537 NAME = None | |
538 | |
336
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|
539 # name for interactions (i.e. def interact_with_<TOOL_NAME>) |
226 | 540 TOOL_NAME = None |
541 | |
336
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542 # set to instance of CursorSprite |
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543 CURSOR = None |
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544 |
487
efb34a6cd2a1
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diff
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545 def __init__(self, name=None): |
592
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546 GameDeveloperGizmo.__init__(self) |
487
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547 self.name = self.NAME |
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548 if name is not None: |
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549 self.name = name |
193
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550 self.tool_name = name |
226 | 551 if self.TOOL_NAME is not None: |
552 self.tool_name = self.TOOL_NAME | |
526
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553 self.inventory_image = None |
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554 |
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555 def _cache_inventory_image(self): |
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556 if not self.inventory_image: |
592
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557 self.inventory_image = self.resource.get_image( |
588
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558 ('items', self.INVENTORY_IMAGE)) |
22 | 559 |
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560 def get_inventory_image(self): |
526
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561 self._cache_inventory_image() |
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562 return self.inventory_image |
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563 |
492
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564 def get_inverse_interact(self, tool): |
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565 return getattr(tool, 'interact_with_' + self.tool_name, None) |
166
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Neil Muller <neil@dip.sun.ac.za>
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566 |
519
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567 def is_interactive(self, tool=None): |
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568 if tool: |
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569 return True |
512 | 570 return False |
571 | |
191 | 572 |
573 class CloneableItem(Item): | |
574 _counter = 0 | |
575 | |
252
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576 @classmethod |
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577 def _get_new_id(cls): |
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578 cls._counter += 1 |
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579 return cls._counter - 1 |
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580 |
487
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581 def __init__(self, name=None): |
490 | 582 super(CloneableItem, self).__init__(name) |
252
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583 my_count = self._get_new_id() |
490 | 584 self.name = "%s.%s" % (self.name, my_count) |