Mercurial > pyntnclick
annotate gamelib/state.py @ 107:5213b45fcc7e
Initial event sound support
author | Neil Muller <neil@dip.sun.ac.za> |
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date | Tue, 24 Aug 2010 14:07:07 +0200 |
parents | 65976205fc2d |
children | 139864ce8bdb |
rev | line source |
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1 """Utilities and base classes for dealing with scenes.""" |
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2 |
107
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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.color import Color |
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9 |
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10 import constants |
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11 from sound import get_sound |
11 | 12 |
78 | 13 class Result(object): |
14 """Result of interacting with a thing""" | |
15 | |
107
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16 def __init__(self, message=None, soundfile=None): |
78 | 17 self.message = message |
107
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18 self.sound = None |
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19 if soundfile: |
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20 self.sound = get_sound(soundfile) |
78 | 21 |
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22 |
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23 def initial_state(): |
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24 """Load the initial state.""" |
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25 state = State() |
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26 state.load_scenes("cryo") |
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27 state.load_scenes("bridge") |
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28 #state.load_scenes("mess") |
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29 #state.load_scenes("engine") |
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30 #state.load_scenes("machine") |
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31 #state.load_scenes("map") |
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32 state.set_current_scene("cryo") |
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33 return state |
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34 |
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35 |
7
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36 class State(object): |
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37 """Complete game state. |
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38 |
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39 Game state consists of: |
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40 |
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41 * items |
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42 * scenes |
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43 """ |
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44 |
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45 def __init__(self): |
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46 # map of scene name -> Scene object |
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47 self.scenes = {} |
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48 # map of detail view name -> DetailView object |
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49 self.detail_views = {} |
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50 # map of item name -> Item object |
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51 self.items = {} |
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52 # list of item objects in inventory |
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53 self.inventory = [] |
73 | 54 # currently selected tool (item) |
55 self.tool = None | |
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56 # current scene |
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57 self.current_scene = None |
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58 # current detail view |
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59 self.current_detail = None |
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60 |
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61 def add_scene(self, scene): |
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62 self.scenes[scene.name] = scene |
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63 |
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64 def add_detail_view(self, detail_view): |
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65 self.detail_views[detail_view.name] = detail_view |
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66 |
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67 def add_item(self, item): |
35 | 68 self.items[item.name] = item |
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69 |
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70 def load_scenes(self, modname): |
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71 mod = __import__("gamelib.scenes.%s" % (modname,), fromlist=[modname]) |
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72 for scene_cls in mod.SCENES: |
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73 self.add_scene(scene_cls(self)) |
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74 |
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75 def set_current_scene(self, name): |
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76 self.current_scene = self.scenes[name] |
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77 |
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78 def add_inventory_item(self, name): |
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79 self.inventory.append(self.items[name]) |
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80 |
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81 def remove_inventory_item(self, name): |
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82 self.inventory.remove(self.items[name]) |
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83 |
73 | 84 def set_tool(self, item): |
85 self.tool = item | |
86 | |
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87 def draw(self, surface): |
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88 self.current_scene.draw(surface) |
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89 |
73 | 90 def interact(self, pos): |
78 | 91 return self.current_scene.interact(self.tool, pos) |
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92 |
105
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93 def animate(self): |
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94 return self.current_scene.animate() |
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95 |
73 | 96 def mouse_move(self, pos): |
97 self.current_scene.mouse_move(self.tool, pos) | |
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98 |
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99 |
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100 class StatefulGizmo(object): |
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101 |
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102 # initial data (optional, defaults to none) |
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103 INITIAL_DATA = None |
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104 |
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105 def __init__(self): |
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106 self.data = {} |
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107 if self.INITIAL_DATA: |
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108 self.data.update(self.INITIAL_DATA) |
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109 |
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110 def set_data(self, key, value): |
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111 self.data[key] = value |
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112 |
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113 def get_data(self, key): |
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114 return self.data.get(key, None) |
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115 |
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116 |
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117 class Scene(StatefulGizmo): |
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118 """Base class for scenes.""" |
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119 |
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120 # sub-folder to look for resources in |
22 | 121 FOLDER = None |
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122 |
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123 # name of background image resource |
22 | 124 BACKGROUND = None |
125 | |
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126 # name of scene (optional, defaults to folder) |
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127 NAME = None |
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128 |
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129 def __init__(self, state): |
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130 StatefulGizmo.__init__(self) |
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131 # scene name |
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132 self.name = self.NAME if self.NAME is not None else self.FOLDER |
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133 # link back to state object |
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134 self.state = state |
22 | 135 # map of thing names -> Thing objects |
136 self.things = {} | |
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137 self._background = get_image(self.FOLDER, self.BACKGROUND) |
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138 self._current_thing = None |
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139 self._current_description = None |
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140 |
35 | 141 def add_item(self, item): |
142 self.state.add_item(item) | |
143 | |
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144 def add_thing(self, thing): |
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145 self.things[thing.name] = thing |
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146 thing.set_scene(self) |
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147 |
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148 def remove_thing(self, thing): |
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149 del self.things[thing.name] |
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150 |
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151 def _make_description(self, text): |
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152 if text is None: |
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153 return None |
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154 label = BoomLabel(text) |
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155 label.set_margin(5) |
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156 label.border_width = 1 |
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157 label.border_color = (0, 0, 0) |
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158 label.bg_color = (127, 127, 127) |
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159 label.fg_color = (0, 0, 0) |
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160 return label |
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161 |
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162 def draw_description(self, surface): |
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163 if self._current_description is not None: |
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164 sub = surface.subsurface( |
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165 Rect(5, 5, *self._current_description.size)) |
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166 self._current_description.draw_all(sub) |
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167 |
22 | 168 def draw_background(self, surface): |
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169 surface.blit(self._background, (0, 0), None) |
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170 |
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171 def draw_things(self, surface): |
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172 for thing in self.things.itervalues(): |
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173 thing.draw(surface) |
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174 |
22 | 175 def draw(self, surface): |
176 self.draw_background(surface) | |
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177 self.draw_things(surface) |
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178 self.draw_description(surface) |
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179 |
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180 def interact(self, item, pos): |
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181 """Interact with a particular position. |
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182 |
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183 Item may be an item in the list of items or None for the hand. |
78 | 184 |
185 Returns a Result object to provide feedback to the player. | |
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186 """ |
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187 for thing in self.things.itervalues(): |
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188 if thing.contains(pos): |
78 | 189 result = thing.interact(item) |
190 if result: | |
191 if self._current_thing: | |
192 # Also update descriptions if needed | |
193 self._current_description = self._make_description( | |
194 self._current_thing.get_description()) | |
195 return result | |
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196 |
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197 def animate(self): |
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198 """Animate all the things in the scene. |
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199 |
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200 Return true if any of them need to queue a redraw""" |
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201 result = False |
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202 for thing in self.things.itervalues(): |
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203 if thing.animate(): |
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204 result = True |
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205 return result |
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206 |
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207 def mouse_move(self, item, pos): |
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208 """Call to check whether the cursor has entered / exited a thing. |
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209 |
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210 Item may be an item in the list of items or None for the hand. |
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211 """ |
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212 if self._current_thing is not None: |
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213 if self._current_thing.contains(pos): |
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214 return |
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215 else: |
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216 self._current_thing.leave() |
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217 self._current_thing = None |
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218 self._current_description = None |
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219 for thing in self.things.itervalues(): |
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220 if thing.contains(pos): |
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221 thing.enter(item) |
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222 self._current_thing = thing |
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223 self._current_description = self._make_description( |
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224 thing.get_description()) |
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225 break |
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226 |
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227 |
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228 class Interact(object): |
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229 |
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230 def __init__(self, image, rect, interact_rect): |
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231 self.image = image |
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232 self.rect = rect |
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233 self.interact_rect = interact_rect |
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234 |
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235 def set_thing(self, thing): |
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236 pass |
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237 |
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238 def draw(self, surface): |
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239 if self.image is not None: |
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240 surface.blit(self.image, self.rect, None) |
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241 |
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242 def animate(self): |
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243 return False |
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244 |
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245 |
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246 class InteractNoImage(Interact): |
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247 |
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248 def __init__(self, x, y, w, h): |
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249 super(InteractNoImage, self).__init__(None, None, Rect(x, y, w, h)) |
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250 |
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251 |
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252 class InteractRectUnion(Interact): |
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253 |
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254 def __init__(self, rect_list): |
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255 # pygame.rect.Rect.unionall should do this, but is broken |
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256 # in some pygame versions (including 1.8, it appears) |
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257 rect_list = [Rect(x) for x in rect_list] |
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258 union_rect = rect_list[0] |
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259 for rect in rect_list[1:]: |
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260 union_rect = union_rect.union(rect) |
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261 super(InteractRectUnion, self).__init__(None, None, union_rect) |
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262 self.interact_rect = rect_list |
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263 |
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264 |
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265 class InteractImage(Interact): |
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266 |
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267 def __init__(self, x, y, image_name): |
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268 super(InteractImage, self).__init__(None, None, None) |
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269 self._pos = (x, y) |
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270 self._image_name = image_name |
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271 |
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272 def set_thing(self, thing): |
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273 self.image = get_image(thing.folder, self._image_name) |
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274 self.rect = Rect(self._pos, self.image.get_size()) |
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275 self.interact_rect = self.rect |
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276 |
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277 |
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278 class InteractAnimated(Interact): |
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279 """Interactive with an animation rather than an image""" |
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280 |
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281 # FIXME: Assumes all images are the same size |
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282 # anim_seq - sequence of image names |
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283 # delay - number of frames to wait between changing images |
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284 |
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285 def __init__(self, x, y, anim_seq, delay): |
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286 self._pos = (x, y) |
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287 self._anim_pos = 0 |
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288 self._names = anim_seq |
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289 self._frame_count = 0 |
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290 self._anim_seq = None |
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291 self._delay = delay |
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292 |
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293 def set_thing(self, thing): |
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294 self._anim_seq = [get_image(thing.folder, x) for x in self._names] |
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295 self.image = self._anim_seq[0] |
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296 self.rect = Rect(self._pos, self.image.get_size()) |
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297 self.interact_rect = self.rect |
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298 |
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299 def animate(self): |
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300 if self._anim_seq: |
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301 self._frame_count += 1 |
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302 if self._frame_count > self._delay: |
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303 self._frame_count = 0 |
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304 self._anim_pos += 1 |
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305 if self._anim_pos >= len(self._anim_seq): |
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306 self._anim_pos = 0 |
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307 self.image = self._anim_seq[self._anim_pos] |
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308 # queue redraw |
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309 return True |
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310 return False |
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311 |
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312 |
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313 class Thing(StatefulGizmo): |
22 | 314 """Base class for things in a scene that you can interact with.""" |
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315 |
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316 # name of thing |
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317 NAME = None |
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318 |
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319 # sub-folder to look for resources in (defaults to scenes folder) |
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320 FOLDER = None |
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321 |
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322 # list of Interact objects |
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323 INTERACTS = {} |
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324 |
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325 # name first interact |
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326 INITIAL = None |
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327 |
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328 # Interact rectangle hi-light color (for debugging) |
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329 # (set to None to turn off) |
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330 if constants.DEBUG: |
75 | 331 _interact_hilight_color = Color('red') |
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332 else: |
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333 _interact_hilight_color = None |
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334 |
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335 def __init__(self): |
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336 StatefulGizmo.__init__(self) |
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337 # name of the thing |
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338 self.name = self.NAME |
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339 # folder for resource (None is overridden by scene folder) |
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340 self.folder = self.FOLDER |
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341 # interacts |
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342 self.interacts = self.INTERACTS |
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343 # these are set by set_scene |
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344 self.scene = None |
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345 self.state = None |
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346 self.current_interact = None |
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347 self.rect = None |
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348 # TODO: add masks |
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349 |
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350 def set_scene(self, scene): |
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351 assert self.scene is None |
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352 self.scene = scene |
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353 if self.folder is None: |
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354 self.folder = scene.FOLDER |
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355 self.state = scene.state |
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356 for interact in self.interacts.itervalues(): |
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357 interact.set_thing(self) |
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358 self.set_interact(self.INITIAL) |
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359 |
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360 def set_interact(self, name): |
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361 self.current_interact = self.interacts[name] |
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362 self.rect = self.current_interact.interact_rect |
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363 assert self.rect is not None, name |
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364 |
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365 def contains(self, pos): |
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366 if hasattr(self.rect, 'collidepoint'): |
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367 return self.rect.collidepoint(pos) |
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368 else: |
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369 # FIXME: add sanity check |
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370 for rect in list(self.rect): |
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371 if rect.collidepoint(pos): |
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372 return True |
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373 return False |
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374 |
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375 def get_description(self): |
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376 return None |
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377 |
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378 def is_interactive(self): |
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379 return True |
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380 |
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381 def enter(self, item): |
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382 """Called when the cursor enters the Thing.""" |
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383 pass |
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384 |
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385 def leave(self): |
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386 """Called when the cursr leaves the Thing.""" |
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387 pass |
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388 |
22 | 389 def interact(self, item): |
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390 if not self.is_interactive(): |
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391 return |
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392 if item is None: |
78 | 393 return self.interact_without() |
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394 else: |
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395 handler = getattr(self, 'interact_with_' + item.name, None) |
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396 if handler is not None: |
78 | 397 return handler(item) |
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398 else: |
78 | 399 return self.interact_default(item) |
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400 |
105
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401 def animate(self): |
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402 return self.current_interact.animate() |
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403 |
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404 def interact_without(self): |
78 | 405 return self.interact_default(None) |
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406 |
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407 def interact_default(self, item): |
78 | 408 return Result("It doesn't work.") |
22 | 409 |
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410 def draw(self, surface): |
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411 self.current_interact.draw(surface) |
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412 if self._interact_hilight_color is not None: |
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413 if hasattr(self.rect, 'collidepoint'): |
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414 frame_rect(surface, self._interact_hilight_color, |
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415 self.rect.inflate(1, 1), 1) |
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416 else: |
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Neil Muller <neil@dip.sun.ac.za>
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417 for rect in self.rect: |
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418 frame_rect(surface, self._interact_hilight_color, |
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419 rect.inflate(1, 1), 1) |
23
1e90a3e4618e
Add code for blitting Scene.
Simon Cross <hodgestar+bzr@gmail.com>
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420 |
22 | 421 |
422 class Item(object): | |
423 """Base class for inventory items.""" | |
424 | |
35 | 425 # image for inventory |
426 INVENTORY_IMAGE = None | |
32
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427 |
35 | 428 def __init__(self, name): |
429 self.name = name | |
430 self.inventory_image = get_image('items', self.INVENTORY_IMAGE) | |
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431 # TODO: needs cursor |
22 | 432 |
34
e5c043aeed65
Inventory and items. And stuff.
Jeremy Thurgood <firxen@gmail.com>
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433 def get_inventory_image(self): |
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434 return self.inventory_image |
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Jeremy Thurgood <firxen@gmail.com>
parents:
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435 |