Mercurial > pyntnclick
annotate gamelib/state.py @ 241:b1451b0b906f
Link crew quarters to map.
author | Simon Cross <hodgestar+bzr@gmail.com> |
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date | Fri, 27 Aug 2010 10:37:47 +0200 |
parents | a5325919342e |
children | dfc89bc64fdb |
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 from albow.resource import get_image |
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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.locals import BLEND_ADD |
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7 from pygame.rect import Rect |
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8 from pygame.surface import Surface |
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9 from pygame.color import Color |
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10 |
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11 import constants |
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12 from sound import get_sound |
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13 from cursor import HAND |
11 | 14 |
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15 # override the initial scene to for debugging |
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16 DEBUG_SCENE = None |
124 | 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): |
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 |
78 | 28 |
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29 def process(self, scene_widget): |
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30 """Helper function to do the right thing with a result object""" |
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31 if self.sound: |
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32 self.sound.play() |
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33 if self.message: |
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34 scene_widget.show_message(self.message, self.style) |
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35 if self.detail_view: |
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36 scene_widget.show_detail(self.detail_view) |
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37 |
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38 |
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39 def handle_result(result, scene_widget): |
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40 """Handle dealing with result or result sequences""" |
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41 if result: |
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42 if hasattr(result, 'process'): |
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43 result.process(scene_widget) |
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44 else: |
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45 for res in result: |
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46 res.process(scene_widget) |
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47 |
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48 def initial_state(): |
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49 """Load the initial state.""" |
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50 state = State() |
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51 state.load_scenes("cryo") |
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52 state.load_scenes("bridge") |
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53 state.load_scenes("mess") |
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54 state.load_scenes("engine") |
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55 state.load_scenes("machine") |
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56 state.load_scenes("crew_quarters") |
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57 state.load_scenes("map") |
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58 initial_scene = "cryo" if DEBUG_SCENE is None else DEBUG_SCENE |
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59 state.set_current_scene(initial_scene) |
120 | 60 state.set_do_enter_leave() |
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61 return state |
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62 |
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63 |
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64 class State(object): |
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65 """Complete game state. |
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66 |
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67 Game state consists of: |
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68 |
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69 * items |
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70 * scenes |
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71 """ |
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72 |
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73 def __init__(self): |
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74 # map of scene name -> Scene object |
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75 self.scenes = {} |
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76 # map of detail view name -> DetailView object |
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77 self.detail_views = {} |
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78 # map of item name -> Item object |
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79 self.items = {} |
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80 # list of item objects in inventory |
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81 self.inventory = [] |
73 | 82 # currently selected tool (item) |
83 self.tool = None | |
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84 # current scene |
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85 self.current_scene = None |
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86 # current detail view |
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87 self.current_detail = None |
120 | 88 # scene we came from, for enter and leave processing |
89 self.previous_scene = None | |
90 # scene transion helpers | |
91 self.do_check = None | |
92 self.old_pos = None | |
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93 |
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94 def add_scene(self, scene): |
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95 self.scenes[scene.name] = scene |
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96 |
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97 def add_detail_view(self, detail_view): |
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98 self.detail_views[detail_view.name] = detail_view |
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99 |
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100 def add_item(self, item): |
35 | 101 self.items[item.name] = item |
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102 |
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103 def load_scenes(self, modname): |
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104 mod = __import__("gamelib.scenes.%s" % (modname,), fromlist=[modname]) |
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105 for scene_cls in mod.SCENES: |
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106 self.add_scene(scene_cls(self)) |
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107 if hasattr(mod, 'DETAIL_VIEWS'): |
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108 for scene_cls in mod.DETAIL_VIEWS: |
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109 self.add_detail_view(scene_cls(self)) |
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110 |
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111 def set_current_scene(self, name): |
120 | 112 old_scene = self.current_scene |
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113 self.current_scene = self.scenes[name] |
120 | 114 if old_scene and old_scene != self.current_scene: |
115 self.previous_scene = old_scene | |
116 self.set_do_enter_leave() | |
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117 |
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118 def set_current_detail(self, name): |
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119 if name is None: |
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120 self.current_detail = None |
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121 else: |
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122 self.current_detail = self.detail_views[name] |
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123 self.current_scene._current_description = None |
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124 self.current_scene._current_thing = None |
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125 return self.current_detail.get_detail_size() |
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126 |
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127 def add_inventory_item(self, name): |
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128 self.inventory.append(self.items[name]) |
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129 |
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130 def remove_inventory_item(self, name): |
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131 self.inventory.remove(self.items[name]) |
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132 # Unselect tool if it's removed |
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133 if self.tool == self.items[name]: |
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134 self.set_tool(None) |
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135 |
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136 def replace_inventory_item(self, old_item, new_item): |
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137 """Try to replace an item in the inventory with a new one""" |
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138 try: |
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139 index = self.inventory.index(old_item) |
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140 self.inventory[index] = new_item |
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141 if self.tool == old_item: |
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142 self.set_tool(new_item) |
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143 except ValueError: |
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144 return False |
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145 return True |
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146 |
73 | 147 def set_tool(self, item): |
148 self.tool = item | |
149 | |
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150 def draw(self, surface, screen): |
120 | 151 if self.do_check and self.previous_scene and self.do_check == constants.LEAVE: |
152 # We still need to handle leave events, so still display the scene | |
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153 self.previous_scene.draw(surface, screen) |
120 | 154 else: |
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155 self.current_scene.draw(surface, screen) |
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156 |
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157 def draw_detail(self, surface, screen): |
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158 self.current_detail.draw(surface, screen) |
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159 |
73 | 160 def interact(self, pos): |
78 | 161 return self.current_scene.interact(self.tool, pos) |
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162 |
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163 def interact_detail(self, pos): |
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164 return self.current_detail.interact(self.tool, pos) |
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165 |
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166 def animate(self): |
120 | 167 if not self.do_check: |
168 return self.current_scene.animate() | |
169 | |
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170 def check_enter_leave(self, screen): |
120 | 171 if not self.do_check: |
172 return None | |
173 if self.do_check == constants.LEAVE: | |
174 self.do_check = constants.ENTER | |
175 if self.previous_scene: | |
176 return self.previous_scene.leave() | |
177 return None | |
178 elif self.do_check == constants.ENTER: | |
179 self.do_check = None | |
180 # Fix descriptions, etc. | |
181 if self.old_pos: | |
187
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182 self.current_scene.mouse_move(self.tool, self.old_pos, screen) |
120 | 183 return self.current_scene.enter() |
184 raise RuntimeError('invalid do_check value %s' % self.do_check) | |
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185 |
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186 def mouse_move(self, pos, screen): |
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187 self.current_scene.mouse_move(self.tool, pos, screen) |
120 | 188 # So we can do sensible things on enter and leave |
189 self.old_pos = pos | |
190 | |
191 def set_do_enter_leave(self): | |
192 """Flag that we need to run the enter loop""" | |
193 self.do_check = constants.LEAVE | |
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194 |
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195 def mouse_move_detail(self, pos, screen): |
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196 self.current_detail.mouse_move(self.tool, pos, screen) |
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197 |
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198 |
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199 class StatefulGizmo(object): |
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200 |
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201 # initial data (optional, defaults to none) |
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202 INITIAL_DATA = None |
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203 |
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204 def __init__(self): |
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205 self.data = {} |
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206 if self.INITIAL_DATA: |
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207 self.data.update(self.INITIAL_DATA) |
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208 |
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209 def set_data(self, key, value): |
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210 self.data[key] = value |
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211 |
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212 def get_data(self, key): |
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213 return self.data.get(key, None) |
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214 |
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215 |
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216 class Scene(StatefulGizmo): |
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217 """Base class for scenes.""" |
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218 |
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219 # sub-folder to look for resources in |
22 | 220 FOLDER = None |
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221 |
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222 # name of background image resource |
22 | 223 BACKGROUND = None |
224 | |
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225 # name of scene (optional, defaults to folder) |
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226 NAME = None |
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227 |
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228 # size (for detail views) |
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229 SIZE = constants.SCENE_SIZE |
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230 |
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231 def __init__(self, state): |
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232 StatefulGizmo.__init__(self) |
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233 # scene name |
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234 self.name = self.NAME if self.NAME is not None else self.FOLDER |
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235 # link back to state object |
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236 self.state = state |
22 | 237 # map of thing names -> Thing objects |
238 self.things = {} | |
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239 if self.BACKGROUND is not None: |
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240 self._background = get_image(self.FOLDER, self.BACKGROUND) |
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241 else: |
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242 self._background = None |
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243 self._current_thing = None |
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244 self._current_description = None |
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245 |
35 | 246 def add_item(self, item): |
247 self.state.add_item(item) | |
248 | |
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249 def add_thing(self, thing): |
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250 self.things[thing.name] = thing |
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251 thing.set_scene(self) |
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252 |
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253 def remove_thing(self, thing): |
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254 del self.things[thing.name] |
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255 |
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256 def _make_description(self, text): |
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257 if text is None: |
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258 return None |
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259 label = BoomLabel(text) |
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260 label.set_margin(5) |
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261 label.border_width = 1 |
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262 label.border_color = (0, 0, 0) |
210
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263 label.bg_color = Color(127, 127, 127, 255) |
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264 label.fg_color = (0, 0, 0) |
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265 return label |
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266 |
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267 def draw_description(self, surface, screen): |
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268 if self._current_description is not None: |
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269 sub = screen.get_root().surface.subsurface( |
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270 Rect(5, 5, *self._current_description.size)) |
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271 self._current_description.draw_all(sub) |
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272 |
22 | 273 def draw_background(self, surface): |
130
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274 if self._background is not None: |
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275 surface.blit(self._background, (0, 0), None) |
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276 else: |
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277 surface.fill((200, 200, 200)) |
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278 |
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279 def draw_things(self, surface): |
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280 for thing in self.things.itervalues(): |
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281 thing.draw(surface) |
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282 |
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283 def draw(self, surface, screen): |
22 | 284 self.draw_background(surface) |
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285 self.draw_things(surface) |
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286 self.draw_description(surface, screen) |
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287 |
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288 def interact(self, item, pos): |
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289 """Interact with a particular position. |
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290 |
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291 Item may be an item in the list of items or None for the hand. |
78 | 292 |
293 Returns a Result object to provide feedback to the player. | |
71
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294 """ |
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295 for thing in self.things.itervalues(): |
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296 if thing.contains(pos): |
78 | 297 result = thing.interact(item) |
298 if result: | |
299 if self._current_thing: | |
300 # Also update descriptions if needed | |
301 self._current_description = self._make_description( | |
302 self._current_thing.get_description()) | |
303 return result | |
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304 |
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305 def animate(self): |
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306 """Animate all the things in the scene. |
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307 |
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308 Return true if any of them need to queue a redraw""" |
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309 result = False |
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310 for thing in self.things.itervalues(): |
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311 if thing.animate(): |
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312 result = True |
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313 return result |
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314 |
120 | 315 def enter(self): |
316 return None | |
317 | |
318 def leave(self): | |
319 self._current_description = None | |
320 return None | |
321 | |
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322 def mouse_move(self, item, pos, screen): |
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323 """Call to check whether the cursor has entered / exited a thing. |
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324 |
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325 Item may be an item in the list of items or None for the hand. |
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326 """ |
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327 if self._current_thing is not None: |
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328 if self._current_thing.contains(pos): |
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329 screen.cursor_highlight(True) |
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330 return |
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331 else: |
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332 self._current_thing.leave() |
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333 self._current_thing = None |
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334 self._current_description = None |
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335 for thing in self.things.itervalues(): |
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336 if thing.contains(pos): |
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337 thing.enter(item) |
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338 self._current_thing = thing |
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339 self._current_description = self._make_description( |
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340 thing.get_description()) |
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341 break |
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342 screen.cursor_highlight(self._current_thing is not None) |
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343 |
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344 def get_detail_size(self): |
127
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345 return self._background.get_size() |
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346 |
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347 |
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348 class Interact(object): |
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349 |
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350 def __init__(self, image, rect, interact_rect): |
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351 self.image = image |
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352 self.rect = rect |
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353 self.interact_rect = interact_rect |
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354 |
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355 def set_thing(self, thing): |
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356 pass |
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357 |
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358 def draw(self, surface): |
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359 if self.image is not None: |
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360 surface.blit(self.image, self.rect, None) |
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361 |
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362 def animate(self): |
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363 return False |
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364 |
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365 |
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366 class InteractNoImage(Interact): |
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367 |
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368 def __init__(self, x, y, w, h): |
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369 super(InteractNoImage, self).__init__(None, None, Rect(x, y, w, h)) |
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370 |
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371 |
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372 class InteractText(Interact): |
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373 """Display box with text to interact with -- mostly for debugging.""" |
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374 |
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375 def __init__(self, x, y, text, bg_color=None): |
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376 if bg_color is None: |
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377 bg_color = (127, 127, 127) |
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378 label = BoomLabel(text) |
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379 label.set_margin(5) |
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380 label.border_width = 1 |
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381 label.border_color = (0, 0, 0) |
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382 label.bg_color = bg_color |
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383 label.fg_color = (0, 0, 0) |
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384 image = Surface(label.size) |
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385 rect = Rect((x, y), label.size) |
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386 label.draw_all(image) |
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387 super(InteractText, self).__init__(image, rect, rect) |
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388 |
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389 |
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390 class InteractRectUnion(Interact): |
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391 |
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392 def __init__(self, rect_list): |
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393 # pygame.rect.Rect.unionall should do this, but is broken |
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394 # in some pygame versions (including 1.8, it appears) |
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395 rect_list = [Rect(x) for x in rect_list] |
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396 union_rect = rect_list[0] |
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397 for rect in rect_list[1:]: |
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398 union_rect = union_rect.union(rect) |
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399 super(InteractRectUnion, self).__init__(None, None, union_rect) |
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400 self.interact_rect = rect_list |
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401 |
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402 |
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403 class InteractImage(Interact): |
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404 |
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405 def __init__(self, x, y, image_name): |
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406 super(InteractImage, self).__init__(None, None, None) |
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407 self._pos = (x, y) |
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408 self._image_name = image_name |
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409 |
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410 def set_thing(self, thing): |
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411 self.image = get_image(thing.folder, self._image_name) |
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412 self.rect = Rect(self._pos, self.image.get_size()) |
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413 self.interact_rect = self.rect |
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414 |
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415 |
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416 class InteractAnimated(Interact): |
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417 """Interactive with an animation rather than an image""" |
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418 |
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419 # FIXME: Assumes all images are the same size |
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420 # anim_seq - sequence of image names |
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421 # delay - number of frames to wait between changing images |
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422 |
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423 def __init__(self, x, y, anim_seq, delay): |
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424 self._pos = (x, y) |
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425 self._anim_pos = 0 |
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426 self._names = anim_seq |
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427 self._frame_count = 0 |
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428 self._anim_seq = None |
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429 self._delay = delay |
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430 |
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431 def set_thing(self, thing): |
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432 self._anim_seq = [get_image(thing.folder, x) for x in self._names] |
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433 self.image = self._anim_seq[0] |
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434 self.rect = Rect(self._pos, self.image.get_size()) |
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435 self.interact_rect = self.rect |
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436 |
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437 def animate(self): |
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438 if self._anim_seq: |
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439 self._frame_count += 1 |
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440 if self._frame_count > self._delay: |
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441 self._frame_count = 0 |
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442 self._anim_pos += 1 |
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443 if self._anim_pos >= len(self._anim_seq): |
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444 self._anim_pos = 0 |
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445 self.image = self._anim_seq[self._anim_pos] |
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446 # queue redraw |
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447 return True |
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448 return False |
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449 |
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450 |
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451 class Thing(StatefulGizmo): |
22 | 452 """Base class for things in a scene that you can interact with.""" |
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453 |
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454 # name of thing |
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455 NAME = None |
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456 |
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457 # sub-folder to look for resources in (defaults to scenes folder) |
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458 FOLDER = None |
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459 |
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460 # list of Interact objects |
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461 INTERACTS = {} |
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462 |
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463 # name first interact |
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464 INITIAL = None |
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465 |
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466 # Interact rectangle hi-light color (for debugging) |
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467 # (set to None to turn off) |
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468 if constants.DEBUG: |
75 | 469 _interact_hilight_color = Color('red') |
68
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470 else: |
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471 _interact_hilight_color = None |
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472 |
86
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473 def __init__(self): |
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474 StatefulGizmo.__init__(self) |
86
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475 # name of the thing |
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476 self.name = self.NAME |
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477 # folder for resource (None is overridden by scene folder) |
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478 self.folder = self.FOLDER |
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479 # interacts |
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480 self.interacts = self.INTERACTS |
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481 # these are set by set_scene |
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482 self.scene = None |
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483 self.state = None |
86
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484 self.current_interact = None |
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485 self.rect = None |
32
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486 # TODO: add masks |
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487 |
39
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488 def set_scene(self, scene): |
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489 assert self.scene is None |
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490 self.scene = scene |
86
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491 if self.folder is None: |
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492 self.folder = scene.FOLDER |
39
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493 self.state = scene.state |
86
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494 for interact in self.interacts.itervalues(): |
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495 interact.set_thing(self) |
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496 self.set_interact(self.INITIAL) |
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|
497 |
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498 def set_interact(self, name): |
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499 self.current_interact = self.interacts[name] |
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500 self.rect = self.current_interact.interact_rect |
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501 assert self.rect is not None, name |
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|
502 |
94
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503 def contains(self, pos): |
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504 if hasattr(self.rect, 'collidepoint'): |
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505 return self.rect.collidepoint(pos) |
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506 else: |
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|
507 # FIXME: add sanity check |
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508 for rect in list(self.rect): |
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509 if rect.collidepoint(pos): |
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510 return True |
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511 return False |
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|
512 |
63
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|
513 def get_description(self): |
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|
514 return None |
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diff
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|
515 |
56
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516 def is_interactive(self): |
133
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517 return self.current_interact is not None |
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|
518 |
71
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|
519 def enter(self, item): |
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|
520 """Called when the cursor enters the Thing.""" |
139
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|
521 pass |
71
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|
522 |
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|
523 def leave(self): |
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|
524 """Called when the cursr leaves the Thing.""" |
139
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525 pass |
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526 |
22 | 527 def interact(self, item): |
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528 if not self.is_interactive(): |
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|
529 return |
41
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530 if item is None: |
78 | 531 return self.interact_without() |
41
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|
532 else: |
193
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533 handler = getattr(self, 'interact_with_' + item.tool_name, None) |
41
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|
534 if handler is not None: |
78 | 535 return handler(item) |
41
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536 else: |
78 | 537 return self.interact_default(item) |
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|
538 |
105
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539 def animate(self): |
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540 return self.current_interact.animate() |
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|
541 |
41
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|
542 def interact_without(self): |
78 | 543 return self.interact_default(None) |
41
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544 |
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|
545 def interact_default(self, item): |
78 | 546 return Result("It doesn't work.") |
22 | 547 |
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|
548 def draw(self, surface): |
86
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|
549 self.current_interact.draw(surface) |
68
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550 if self._interact_hilight_color is not None: |
94
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551 if hasattr(self.rect, 'collidepoint'): |
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|
552 frame_rect(surface, self._interact_hilight_color, |
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553 self.rect.inflate(1, 1), 1) |
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|
554 else: |
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|
555 for rect in self.rect: |
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|
556 frame_rect(surface, self._interact_hilight_color, |
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|
557 rect.inflate(1, 1), 1) |
23
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|
558 |
22 | 559 |
560 class Item(object): | |
561 """Base class for inventory items.""" | |
562 | |
35 | 563 # image for inventory |
564 INVENTORY_IMAGE = None | |
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|
565 |
226 | 566 TOOL_NAME = None |
567 | |
35 | 568 def __init__(self, name): |
569 self.name = name | |
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570 self.tool_name = name |
226 | 571 if self.TOOL_NAME is not None: |
572 self.tool_name = self.TOOL_NAME | |
35 | 573 self.inventory_image = get_image('items', self.INVENTORY_IMAGE) |
32
18cb1af411ef
Add helper for adding items. Give items names. Make things take a rectangle.
Simon Cross <hodgestar+bzr@gmail.com>
parents:
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574 # TODO: needs cursor |
22 | 575 |
34
e5c043aeed65
Inventory and items. And stuff.
Jeremy Thurgood <firxen@gmail.com>
parents:
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576 def get_inventory_image(self): |
e5c043aeed65
Inventory and items. And stuff.
Jeremy Thurgood <firxen@gmail.com>
parents:
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577 return self.inventory_image |
e5c043aeed65
Inventory and items. And stuff.
Jeremy Thurgood <firxen@gmail.com>
parents:
33
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578 |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
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579 def interact(self, tool, state): |
166
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Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
161
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580 handler = getattr(self, 'interact_with_' + tool.name, None) |
193
738608e90e9c
CloneableItem tweaks and a usable laser welder. zOMG!
Jeremy Thurgood <firxen@gmail.com>
parents:
191
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581 inverse_handler = getattr(tool, 'interact_with_' + self.tool_name, None) |
166
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Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
161
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582 if handler is not None: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
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changeset
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583 return handler(tool, state) |
166
0db92b3b5833
Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
161
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584 elif inverse_handler is not None: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
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changeset
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585 return inverse_handler(self, state) |
166
0db92b3b5833
Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
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586 else: |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
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587 return self.interact_default(tool, state) |
166
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Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
161
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588 |
167
5845a3ed4dad
Inventory interaction can (surprisingly) affect the inventory
Neil Muller <neil@dip.sun.ac.za>
parents:
166
diff
changeset
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589 def interact_default(self, tool, state): |
166
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Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
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590 return Result("That doesn't do anything useful") |
0db92b3b5833
Add inventory interactions
Neil Muller <neil@dip.sun.ac.za>
parents:
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591 |
191 | 592 |
593 class CloneableItem(Item): | |
594 _counter = 0 | |
595 | |
596 def __init__(self, name): | |
597 my_count = CloneableItem._counter | |
598 CloneableItem._counter += 1 | |
599 super(CloneableItem, self).__init__("%s.%s" % (name, my_count)) | |
193
738608e90e9c
CloneableItem tweaks and a usable laser welder. zOMG!
Jeremy Thurgood <firxen@gmail.com>
parents:
191
diff
changeset
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600 self.tool_name = name |
226 | 601 if self.TOOL_NAME is not None: |
602 self.tool_name = self.TOOL_NAME |