Mercurial > pyntnclick
annotate gamelib/state.py @ 472:cab67fd696b9
Fix crash bug on the bridge. (JIM's panel really doesn't like items.)
author | Jeremy Thurgood <firxen@gmail.com> |
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date | Sun, 29 Aug 2010 03:51:23 +0200 |
parents | af2a23b9787d |
children | 4ea237bbcef8 a7ed199f69d5 |
rev | line source |
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7
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Start of base classes for game state.
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1 """Utilities and base classes for dealing with scenes.""" |
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2 |
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3 from albow.resource import get_image, get_font |
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4 from albow.utils import frame_rect |
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5 from widgets import BoomLabel |
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6 from pygame.rect import Rect |
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7 from pygame.color import Color |
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8 |
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9 import constants |
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10 from sound import get_sound |
11 | 11 |
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12 # override the initial scene to for debugging |
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13 DEBUG_SCENE = None |
124 | 14 |
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15 # whether to show debugging rects |
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16 DEBUG_RECTS = False |
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17 |
78 | 18 class Result(object): |
19 """Result of interacting with a thing""" | |
20 | |
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21 def __init__(self, message=None, soundfile=None, detail_view=None, style=None, close_detail=False, end_game=False): |
78 | 22 self.message = message |
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23 self.sound = None |
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24 if soundfile: |
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25 self.sound = get_sound(soundfile) |
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26 self.detail_view = detail_view |
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27 self.style = style |
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28 self.close_detail = close_detail |
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29 self.end_game = end_game |
78 | 30 |
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31 def process(self, scene_widget): |
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32 """Helper function to do the right thing with a result object""" |
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33 if self.sound: |
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34 self.sound.play() |
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35 if self.message: |
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36 scene_widget.show_message(self.message, self.style) |
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37 if self.detail_view: |
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38 scene_widget.show_detail(self.detail_view) |
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39 if self.close_detail and hasattr(scene_widget, 'parent') and hasattr(scene_widget.parent, 'clear_detail'): |
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40 scene_widget.parent.clear_detail() |
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41 if self.end_game: |
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42 scene_widget.end_game() |
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43 |
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44 |
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45 def handle_result(result, scene_widget): |
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46 """Handle dealing with result or result sequences""" |
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47 if result: |
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48 if hasattr(result, 'process'): |
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49 result.process(scene_widget) |
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50 else: |
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51 for res in result: |
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52 if res: |
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53 # List may contain None's |
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54 res.process(scene_widget) |
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55 |
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56 |
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57 def initial_state(): |
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58 """Load the initial state.""" |
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59 state = State() |
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60 state.load_scenes("cryo") |
56
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61 state.load_scenes("bridge") |
132
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62 state.load_scenes("mess") |
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63 state.load_scenes("engine") |
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64 state.load_scenes("machine") |
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65 state.load_scenes("crew_quarters") |
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66 state.load_scenes("map") |
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67 state.load_scenes("manual") |
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68 initial_scene = "cryo" if DEBUG_SCENE is None else DEBUG_SCENE |
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69 state.set_current_scene(initial_scene) |
120 | 70 state.set_do_enter_leave() |
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71 return state |
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72 |
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73 |
7
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74 class State(object): |
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75 """Complete game state. |
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76 |
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77 Game state consists of: |
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78 |
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79 * items |
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80 * scenes |
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81 """ |
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82 |
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83 def __init__(self): |
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84 # map of scene name -> Scene object |
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85 self.scenes = {} |
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86 # map of detail view name -> DetailView object |
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87 self.detail_views = {} |
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88 # map of item name -> Item object |
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89 self.items = {} |
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90 # list of item objects in inventory |
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91 self.inventory = [] |
73 | 92 # currently selected tool (item) |
93 self.tool = None | |
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94 # current scene |
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95 self.current_scene = None |
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96 # current detail view |
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97 self.current_detail = None |
120 | 98 # scene we came from, for enter and leave processing |
99 self.previous_scene = None | |
100 # scene transion helpers | |
101 self.do_check = None | |
102 self.old_pos = None | |
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103 # current thing |
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104 self.current_thing = None |
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105 self.highlight_override = False |
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106 |
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107 def add_scene(self, scene): |
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108 self.scenes[scene.name] = scene |
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109 |
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110 def add_detail_view(self, detail_view): |
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111 self.detail_views[detail_view.name] = detail_view |
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112 |
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113 def add_item(self, item): |
35 | 114 self.items[item.name] = item |
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115 |
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116 def load_scenes(self, modname): |
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117 mod = __import__("gamelib.scenes.%s" % (modname,), fromlist=[modname]) |
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118 for scene_cls in mod.SCENES: |
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119 self.add_scene(scene_cls(self)) |
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120 if hasattr(mod, 'DETAIL_VIEWS'): |
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121 for scene_cls in mod.DETAIL_VIEWS: |
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122 self.add_detail_view(scene_cls(self)) |
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123 |
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124 def set_current_scene(self, name): |
120 | 125 old_scene = self.current_scene |
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126 self.current_scene = self.scenes[name] |
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127 self.current_thing = None |
120 | 128 if old_scene and old_scene != self.current_scene: |
129 self.previous_scene = old_scene | |
130 self.set_do_enter_leave() | |
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131 |
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132 def set_current_detail(self, name): |
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133 self.current_thing = None |
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134 if name is None: |
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135 self.current_detail = None |
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136 else: |
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137 self.current_detail = self.detail_views[name] |
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138 return self.current_detail.get_detail_size() |
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139 |
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140 def add_inventory_item(self, name): |
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141 self.inventory.append(self.items[name]) |
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142 |
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143 def is_in_inventory(self, name): |
340
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144 if name in self.items: |
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145 return self.items[name] in self.inventory |
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146 return False |
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147 |
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148 def remove_inventory_item(self, name): |
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149 self.inventory.remove(self.items[name]) |
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150 # Unselect tool if it's removed |
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151 if self.tool == self.items[name]: |
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152 self.set_tool(None) |
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153 |
305
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154 def replace_inventory_item(self, old_item_name, new_item_name): |
167
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155 """Try to replace an item in the inventory with a new one""" |
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156 try: |
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157 index = self.inventory.index(self.items[old_item_name]) |
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158 self.inventory[index] = self.items[new_item_name] |
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159 if self.tool == self.items[old_item_name]: |
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160 self.set_tool(self.items[new_item_name]) |
167
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161 except ValueError: |
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162 return False |
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163 return True |
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164 |
73 | 165 def set_tool(self, item): |
166 self.tool = item | |
167 | |
187
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168 def draw(self, surface, screen): |
120 | 169 if self.do_check and self.previous_scene and self.do_check == constants.LEAVE: |
170 # We still need to handle leave events, so still display the scene | |
187
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171 self.previous_scene.draw(surface, screen) |
120 | 172 else: |
187
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173 self.current_scene.draw(surface, screen) |
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174 |
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175 def draw_detail(self, surface, screen): |
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176 self.current_detail.draw(surface, screen) |
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177 |
73 | 178 def interact(self, pos): |
78 | 179 return self.current_scene.interact(self.tool, pos) |
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180 |
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181 def interact_detail(self, pos): |
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182 return self.current_detail.interact(self.tool, pos) |
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183 |
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184 def cancel_doodah(self, screen): |
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185 if self.tool: |
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186 self.set_tool(None) |
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187 elif self.current_detail: |
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188 screen.state_widget.clear_detail() |
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189 |
314
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190 def do_enter_detail(self): |
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191 if self.current_detail: |
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192 self.current_detail.enter() |
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193 |
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194 def do_leave_detail(self): |
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195 if self.current_detail: |
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196 self.current_detail.leave() |
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197 |
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198 def animate(self): |
120 | 199 if not self.do_check: |
200 return self.current_scene.animate() | |
201 | |
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202 def check_enter_leave(self, screen): |
120 | 203 if not self.do_check: |
204 return None | |
205 if self.do_check == constants.LEAVE: | |
206 self.do_check = constants.ENTER | |
207 if self.previous_scene: | |
208 return self.previous_scene.leave() | |
209 return None | |
210 elif self.do_check == constants.ENTER: | |
211 self.do_check = None | |
212 # Fix descriptions, etc. | |
213 if self.old_pos: | |
324
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214 self.current_scene.update_current_thing(self.old_pos) |
120 | 215 return self.current_scene.enter() |
216 raise RuntimeError('invalid do_check value %s' % self.do_check) | |
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217 |
324
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218 def mouse_move(self, pos): |
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219 self.current_scene.mouse_move(pos) |
120 | 220 # So we can do sensible things on enter and leave |
221 self.old_pos = pos | |
222 | |
223 def set_do_enter_leave(self): | |
224 """Flag that we need to run the enter loop""" | |
225 self.do_check = constants.LEAVE | |
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226 |
324
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227 def mouse_move_detail(self, pos): |
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228 self.current_detail.mouse_move(pos) |
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229 |
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230 |
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231 class StatefulGizmo(object): |
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232 |
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233 # initial data (optional, defaults to none) |
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234 INITIAL_DATA = None |
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235 |
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236 def __init__(self): |
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237 self.data = {} |
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238 if self.INITIAL_DATA: |
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239 self.data.update(self.INITIAL_DATA) |
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240 |
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241 def set_data(self, key, value): |
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242 self.data[key] = value |
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243 |
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244 def get_data(self, key): |
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245 return self.data.get(key, None) |
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246 |
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247 |
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248 class Scene(StatefulGizmo): |
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249 """Base class for scenes.""" |
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250 |
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251 # sub-folder to look for resources in |
22 | 252 FOLDER = None |
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253 |
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254 # name of background image resource |
22 | 255 BACKGROUND = None |
256 | |
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257 # name of scene (optional, defaults to folder) |
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258 NAME = None |
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259 |
278 | 260 # Offset of the background image |
261 OFFSET = (0, 0) | |
262 | |
125
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263 # size (for detail views) |
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264 SIZE = constants.SCENE_SIZE |
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265 |
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266 def __init__(self, state): |
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267 StatefulGizmo.__init__(self) |
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268 # scene name |
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269 self.name = self.NAME if self.NAME is not None else self.FOLDER |
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270 # link back to state object |
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271 self.state = state |
22 | 272 # map of thing names -> Thing objects |
273 self.things = {} | |
130
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274 if self.BACKGROUND is not None: |
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275 self._background = get_image(self.FOLDER, self.BACKGROUND) |
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276 else: |
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277 self._background = None |
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278 |
35 | 279 def add_item(self, item): |
280 self.state.add_item(item) | |
281 | |
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282 def add_thing(self, thing): |
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283 self.things[thing.name] = thing |
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284 thing.set_scene(self) |
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285 |
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286 def remove_thing(self, thing): |
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287 del self.things[thing.name] |
313
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288 self.leave() |
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289 |
319
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290 def _get_description(self): |
324
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291 text = (self.state.current_thing and |
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292 self.state.current_thing.get_description()) |
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293 if text is None: |
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294 return None |
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295 label = BoomLabel(text) |
326
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296 font = get_font(15, 'VeraBd.ttf') |
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297 label.set_margin(5) |
76
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298 label.border_width = 1 |
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299 label.border_color = (0, 0, 0) |
326
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300 label.bg_color = Color(210, 210, 210, 255) |
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301 label.fg_color = (0, 0, 0) |
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302 return label |
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303 |
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304 def draw_description(self, surface, screen): |
319
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305 description = self._get_description() |
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306 if description is not None: |
326
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307 w, h = description.size |
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308 sub = screen.get_root().surface.subsurface( |
326
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309 Rect(400-w/2, 5, w, h)) |
319
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310 description.draw_all(sub) |
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311 |
22 | 312 def draw_background(self, surface): |
130
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313 if self._background is not None: |
278 | 314 surface.blit(self._background, self.OFFSET, None) |
130
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315 else: |
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316 surface.fill((200, 200, 200)) |
18
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317 |
23
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318 def draw_things(self, surface): |
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319 for thing in self.things.itervalues(): |
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320 thing.draw(surface) |
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321 |
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322 def draw(self, surface, screen): |
22 | 323 self.draw_background(surface) |
23
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324 self.draw_things(surface) |
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325 self.draw_description(surface, screen) |
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326 |
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327 def interact(self, item, pos): |
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328 """Interact with a particular position. |
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329 |
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330 Item may be an item in the list of items or None for the hand. |
78 | 331 |
332 Returns a Result object to provide feedback to the player. | |
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333 """ |
324
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334 if self.state.current_thing is not None: |
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335 return self.state.current_thing.interact(item) |
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336 |
105
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337 def animate(self): |
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338 """Animate all the things in the scene. |
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339 |
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340 Return true if any of them need to queue a redraw""" |
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341 result = False |
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342 for thing in self.things.itervalues(): |
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343 if thing.animate(): |
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344 result = True |
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345 return result |
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346 |
120 | 347 def enter(self): |
348 return None | |
349 | |
350 def leave(self): | |
351 return None | |
352 | |
324
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353 def update_current_thing(self, pos): |
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354 if self.state.current_thing is not None: |
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355 if not self.state.current_thing.contains(pos): |
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356 self.state.current_thing.leave() |
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357 self.state.current_thing = None |
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358 for thing in self.things.itervalues(): |
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359 if thing.contains(pos): |
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360 thing.enter(self.state.tool) |
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361 self.state.current_thing = thing |
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362 break |
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363 |
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364 def mouse_move(self, pos): |
71
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365 """Call to check whether the cursor has entered / exited a thing. |
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366 |
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367 Item may be an item in the list of items or None for the hand. |
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368 """ |
324
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369 self.update_current_thing(pos) |
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370 |
125
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371 def get_detail_size(self): |
127
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372 return self._background.get_size() |
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373 |
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374 |
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375 class Thing(StatefulGizmo): |
22 | 376 """Base class for things in a scene that you can interact with.""" |
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377 |
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378 # name of thing |
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379 NAME = None |
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380 |
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381 # sub-folder to look for resources in (defaults to scenes folder) |
41
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382 FOLDER = None |
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383 |
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384 # list of Interact objects |
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385 INTERACTS = {} |
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386 |
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387 # name first interact |
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388 INITIAL = None |
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389 |
68
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390 # Interact rectangle hi-light color (for debugging) |
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391 # (set to None to turn off) |
282
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392 _interact_hilight_color = Color('red') |
68
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393 |
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394 def __init__(self): |
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395 StatefulGizmo.__init__(self) |
86
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396 # name of the thing |
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397 self.name = self.NAME |
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398 # folder for resource (None is overridden by scene folder) |
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399 self.folder = self.FOLDER |
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400 # interacts |
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401 self.interacts = self.INTERACTS |
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402 # these are set by set_scene |
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403 self.scene = None |
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404 self.state = None |
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405 self.current_interact = None |
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406 self.rect = None |
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407 self.orig_rect = None |
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408 |
278 | 409 def _fix_rect(self): |
410 """Fix rects to compensate for scene offset""" | |
280
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411 # Offset logic is to always work with copies, to avoid |
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412 # flying effects from multiple calls to _fix_rect |
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413 # See footwork in draw |
278 | 414 if hasattr(self.rect, 'collidepoint'): |
280
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415 self.rect = self.rect.move(self.scene.OFFSET) |
278 | 416 else: |
280
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417 self.rect = [x.move(self.scene.OFFSET) for x in self.rect] |
278 | 418 |
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419 def set_scene(self, scene): |
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420 assert self.scene is None |
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421 self.scene = scene |
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422 if self.folder is None: |
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423 self.folder = scene.FOLDER |
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424 self.state = scene.state |
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425 for interact in self.interacts.itervalues(): |
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426 interact.set_thing(self) |
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427 self.set_interact(self.INITIAL) |
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428 |
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429 def set_interact(self, name): |
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430 self.current_interact = self.interacts[name] |
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431 self.rect = self.current_interact.interact_rect |
278 | 432 if self.scene: |
433 self._fix_rect() | |
86
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434 assert self.rect is not None, name |
39
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435 |
94
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436 def contains(self, pos): |
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437 if hasattr(self.rect, 'collidepoint'): |
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438 return self.rect.collidepoint(pos) |
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439 else: |
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440 # FIXME: add sanity check |
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441 for rect in list(self.rect): |
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442 if rect.collidepoint(pos): |
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443 return True |
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444 return False |
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445 |
63
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446 def get_description(self): |
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447 return None |
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448 |
56
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449 def is_interactive(self): |
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450 return True |
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451 |
71
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452 def enter(self, item): |
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453 """Called when the cursor enters the Thing.""" |
139
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454 pass |
71
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455 |
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456 def leave(self): |
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457 """Called when the cursr leaves the Thing.""" |
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458 pass |
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459 |
22 | 460 def interact(self, item): |
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461 if not self.is_interactive(): |
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462 return |
41
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463 if item is None: |
78 | 464 return self.interact_without() |
41
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465 else: |
193
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466 handler = getattr(self, 'interact_with_' + item.tool_name, None) |
41
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467 if handler is not None: |
78 | 468 return handler(item) |
41
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469 else: |
78 | 470 return self.interact_default(item) |
41
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471 |
105
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472 def animate(self): |
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473 return self.current_interact.animate() |
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474 |
41
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475 def interact_without(self): |
78 | 476 return self.interact_default(None) |
41
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|
477 |
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478 def interact_default(self, item): |
435 | 479 return None |
22 | 480 |
23
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diff
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481 def draw(self, surface): |
280
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diff
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482 old_rect = self.current_interact.rect |
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diff
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|
483 if old_rect: |
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diff
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484 self.current_interact.rect = old_rect.move(self.scene.OFFSET) |
86
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parents:
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diff
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|
485 self.current_interact.draw(surface) |
280
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diff
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486 self.current_interact.rect = old_rect |
311
00eb7ea2b7ea
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parents:
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diff
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|
487 if DEBUG_RECTS and self._interact_hilight_color: |
94
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diff
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|
488 if hasattr(self.rect, 'collidepoint'): |
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|
489 frame_rect(surface, self._interact_hilight_color, |
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490 self.rect.inflate(1, 1), 1) |
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|
491 else: |
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|
492 for rect in self.rect: |
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|
493 frame_rect(surface, self._interact_hilight_color, |
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|
494 rect.inflate(1, 1), 1) |
23
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Add code for blitting Scene.
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22
diff
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|
495 |
22 | 496 |
497 class Item(object): | |
498 """Base class for inventory items.""" | |
499 | |
35 | 500 # image for inventory |
501 INVENTORY_IMAGE = None | |
32
18cb1af411ef
Add helper for adding items. Give items names. Make things take a rectangle.
Simon Cross <hodgestar+bzr@gmail.com>
parents:
30
diff
changeset
|
502 |
336
72e4d0c5dfe9
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parents:
331
diff
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|
503 # name for interactions (i.e. def interact_with_<TOOL_NAME>) |
226 | 504 TOOL_NAME = None |
505 | |
336
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Clean-up two old TODOs.
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parents:
331
diff
changeset
|
506 # set to instance of CursorSprite |
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331
diff
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|
507 CURSOR = None |
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Clean-up two old TODOs.
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|
508 |
35 | 509 def __init__(self, name): |
510 self.name = name | |
193
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CloneableItem tweaks and a usable laser welder. zOMG!
Jeremy Thurgood <firxen@gmail.com>
parents:
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|
511 self.tool_name = name |
226 | 512 if self.TOOL_NAME is not None: |
513 self.tool_name = self.TOOL_NAME | |
35 | 514 self.inventory_image = get_image('items', self.INVENTORY_IMAGE) |
22 | 515 |
34
e5c043aeed65
Inventory and items. And stuff.
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parents:
33
diff
changeset
|
516 def get_inventory_image(self): |
e5c043aeed65
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diff
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|
517 return self.inventory_image |
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Inventory and items. And stuff.
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parents:
33
diff
changeset
|
518 |
167
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Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
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166
diff
changeset
|
519 def interact(self, tool, state): |
384
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Initial manual implementation.
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diff
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|
520 if tool is None: |
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Initial manual implementation.
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diff
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|
521 return self.interact_without(state) |
166
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Add inventory interactions
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161
diff
changeset
|
522 handler = getattr(self, 'interact_with_' + tool.name, None) |
193
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CloneableItem tweaks and a usable laser welder. zOMG!
Jeremy Thurgood <firxen@gmail.com>
parents:
191
diff
changeset
|
523 inverse_handler = getattr(tool, 'interact_with_' + self.tool_name, None) |
166
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Add inventory interactions
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parents:
161
diff
changeset
|
524 if handler is not None: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
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parents:
166
diff
changeset
|
525 return handler(tool, state) |
166
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Add inventory interactions
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161
diff
changeset
|
526 elif inverse_handler is not None: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
diff
changeset
|
527 return inverse_handler(self, state) |
166
0db92b3b5833
Add inventory interactions
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parents:
161
diff
changeset
|
528 else: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
diff
changeset
|
529 return self.interact_default(tool, state) |
166
0db92b3b5833
Add inventory interactions
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parents:
161
diff
changeset
|
530 |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
diff
changeset
|
531 def interact_default(self, tool, state): |
166
0db92b3b5833
Add inventory interactions
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parents:
161
diff
changeset
|
532 return Result("That doesn't do anything useful") |
0db92b3b5833
Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
161
diff
changeset
|
533 |
191 | 534 |
535 class CloneableItem(Item): | |
536 _counter = 0 | |
537 | |
252
dfc89bc64fdb
Start of walkthrough "unit test" and associated fixes and tweaks.
Jeremy Thurgood <firxen@gmail.com>
parents:
241
diff
changeset
|
538 @classmethod |
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Start of walkthrough "unit test" and associated fixes and tweaks.
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parents:
241
diff
changeset
|
539 def _get_new_id(cls): |
dfc89bc64fdb
Start of walkthrough "unit test" and associated fixes and tweaks.
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parents:
241
diff
changeset
|
540 cls._counter += 1 |
dfc89bc64fdb
Start of walkthrough "unit test" and associated fixes and tweaks.
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parents:
241
diff
changeset
|
541 return cls._counter - 1 |
dfc89bc64fdb
Start of walkthrough "unit test" and associated fixes and tweaks.
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parents:
241
diff
changeset
|
542 |
191 | 543 def __init__(self, name): |
252
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diff
changeset
|
544 my_count = self._get_new_id() |
191 | 545 super(CloneableItem, self).__init__("%s.%s" % (name, my_count)) |
193
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CloneableItem tweaks and a usable laser welder. zOMG!
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diff
changeset
|
546 self.tool_name = name |
226 | 547 if self.TOOL_NAME is not None: |
548 self.tool_name = self.TOOL_NAME |