Mercurial > pyntnclick
annotate gamelib/state.py @ 93:350ce4ebe122
Detail view without any functionality.
author | Jeremy Thurgood <firxen@gmail.com> |
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date | Tue, 24 Aug 2010 00:43:32 +0200 |
parents | 053bc8e167fc |
children | ce23fad8ecb3 |
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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Start of scene drawing framework.
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3 from albow.resource import get_image, get_sound |
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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 |
11 | 11 |
78 | 12 class Result(object): |
13 """Result of interacting with a thing""" | |
14 | |
15 def __init__(self, message=None): | |
16 self.message = message | |
17 | |
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18 |
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19 def initial_state(): |
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20 """Load the initial state.""" |
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21 state = State() |
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22 state.load_scenes("cryo") |
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23 state.load_scenes("bridge") |
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24 #state.load_scenes("mess") |
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25 #state.load_scenes("engine") |
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26 #state.load_scenes("machine") |
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27 #state.load_scenes("map") |
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28 state.set_current_scene("cryo") |
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29 return state |
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30 |
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31 |
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32 class State(object): |
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33 """Complete game state. |
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34 |
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35 Game state consists of: |
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36 |
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37 * items |
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38 * scenes |
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39 """ |
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40 |
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41 def __init__(self): |
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42 # map of scene name -> Scene object |
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43 self.scenes = {} |
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44 # map of detail view name -> DetailView object |
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45 self.detail_views = {} |
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46 # map of item name -> Item object |
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47 self.items = {} |
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48 # list of item objects in inventory |
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49 self.inventory = [] |
73 | 50 # currently selected tool (item) |
51 self.tool = None | |
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52 # current scene |
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53 self.current_scene = None |
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54 # current detail view |
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55 self.current_detail = None |
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56 |
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57 def add_scene(self, scene): |
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58 self.scenes[scene.name] = scene |
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59 |
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60 def add_detail_view(self, detail_view): |
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61 self.detail_views[detail_view.name] = detail_view |
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62 |
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63 def add_item(self, item): |
35 | 64 self.items[item.name] = item |
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65 |
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66 def load_scenes(self, modname): |
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67 mod = __import__("gamelib.scenes.%s" % (modname,), fromlist=[modname]) |
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68 for scene_cls in mod.SCENES: |
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69 self.add_scene(scene_cls(self)) |
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70 |
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71 def set_current_scene(self, name): |
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72 self.current_scene = self.scenes[name] |
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73 |
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74 def add_inventory_item(self, name): |
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75 self.inventory.append(self.items[name]) |
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76 |
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77 def remove_inventory_item(self, name): |
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78 self.inventory.remove(self.items[name]) |
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79 |
73 | 80 def set_tool(self, item): |
81 self.tool = item | |
82 | |
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83 def draw(self, surface): |
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84 self.current_scene.draw(surface) |
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85 |
73 | 86 def interact(self, pos): |
78 | 87 return self.current_scene.interact(self.tool, pos) |
71
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88 |
73 | 89 def mouse_move(self, pos): |
90 self.current_scene.mouse_move(self.tool, pos) | |
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91 |
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92 |
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93 class StatefulGizmo(object): |
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94 |
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95 # initial data (optional, defaults to none) |
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96 INITIAL_DATA = None |
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97 |
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98 def __init__(self): |
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99 self.data = {} |
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100 if self.INITIAL_DATA: |
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101 self.data.update(self.INITIAL_DATA) |
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102 |
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103 def set_data(self, key, value): |
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104 self.data[key] = value |
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105 |
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106 def get_data(self, key): |
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107 return self.data.get(key, None) |
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108 |
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109 |
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110 class Scene(StatefulGizmo): |
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111 """Base class for scenes.""" |
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112 |
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113 # sub-folder to look for resources in |
22 | 114 FOLDER = None |
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115 |
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116 # name of background image resource |
22 | 117 BACKGROUND = None |
118 | |
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119 # name of scene (optional, defaults to folder) |
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120 NAME = None |
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121 |
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122 def __init__(self, state): |
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123 StatefulGizmo.__init__(self) |
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124 # scene name |
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125 self.name = self.NAME if self.NAME is not None else self.FOLDER |
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126 # link back to state object |
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127 self.state = state |
22 | 128 # map of thing names -> Thing objects |
129 self.things = {} | |
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130 self._background = get_image(self.FOLDER, self.BACKGROUND) |
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131 self._current_thing = None |
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132 self._current_description = None |
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133 |
35 | 134 def add_item(self, item): |
135 self.state.add_item(item) | |
136 | |
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137 def add_thing(self, thing): |
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138 self.things[thing.name] = thing |
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139 thing.set_scene(self) |
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140 |
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141 def remove_thing(self, thing): |
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142 del self.things[thing.name] |
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143 |
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144 def _make_description(self, text): |
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145 if text is None: |
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146 return None |
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147 label = BoomLabel(text) |
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148 label.set_margin(5) |
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149 label.border_width = 1 |
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150 label.border_color = (0, 0, 0) |
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151 label.bg_color = (127, 127, 127) |
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152 label.fg_color = (0, 0, 0) |
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153 return label |
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154 |
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155 def draw_description(self, surface): |
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156 if self._current_description is not None: |
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157 sub = surface.subsurface( |
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158 Rect(5, 5, *self._current_description.size)) |
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159 self._current_description.draw_all(sub) |
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160 |
22 | 161 def draw_background(self, surface): |
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162 surface.blit(self._background, (0, 0), None) |
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163 |
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164 def draw_things(self, surface): |
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165 for thing in self.things.itervalues(): |
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166 thing.draw(surface) |
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167 |
22 | 168 def draw(self, surface): |
169 self.draw_background(surface) | |
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170 self.draw_things(surface) |
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171 self.draw_description(surface) |
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172 |
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173 def interact(self, item, pos): |
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174 """Interact with a particular position. |
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175 |
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176 Item may be an item in the list of items or None for the hand. |
78 | 177 |
178 Returns a Result object to provide feedback to the player. | |
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179 """ |
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180 for thing in self.things.itervalues(): |
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181 if thing.rect.collidepoint(pos): |
78 | 182 result = thing.interact(item) |
183 if result: | |
184 if self._current_thing: | |
185 # Also update descriptions if needed | |
186 self._current_description = self._make_description( | |
187 self._current_thing.get_description()) | |
188 return result | |
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189 |
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190 def mouse_move(self, item, pos): |
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191 """Call to check whether the cursor has entered / exited a thing. |
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192 |
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193 Item may be an item in the list of items or None for the hand. |
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194 """ |
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195 if self._current_thing is not None: |
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196 if self._current_thing.rect.collidepoint(pos): |
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197 return |
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198 else: |
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199 self._current_thing.leave() |
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200 self._current_thing = None |
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201 self._current_description = None |
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202 for thing in self.things.itervalues(): |
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203 if thing.rect.collidepoint(pos): |
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204 thing.enter(item) |
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205 self._current_thing = thing |
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206 self._current_description = self._make_description( |
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207 thing.get_description()) |
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208 break |
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209 |
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210 |
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211 class Interact(object): |
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212 |
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213 def __init__(self, image, rect, interact_rect): |
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214 self.image = image |
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215 self.rect = rect |
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216 self.interact_rect = interact_rect |
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217 |
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218 def set_thing(self, thing): |
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219 pass |
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220 |
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221 def draw(self, surface): |
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222 if self.image is not None: |
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223 surface.blit(self.image, self.rect, None) |
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224 |
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225 |
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226 class InteractNoImage(Interact): |
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227 |
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228 def __init__(self, x, y, w, h): |
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229 super(InteractNoImage, self).__init__(None, None, Rect(x, y, w, h)) |
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230 |
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231 |
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232 class InteractImage(Interact): |
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233 |
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234 def __init__(self, x, y, image_name): |
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235 super(InteractImage, self).__init__(None, None, None) |
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236 self._pos = (x, y) |
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237 self._image_name = image_name |
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238 |
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239 def set_thing(self, thing): |
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240 self.image = get_image(thing.folder, self._image_name) |
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241 self.rect = Rect(self._pos, self.image.get_size()) |
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242 self.interact_rect = self.rect |
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243 |
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244 |
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245 class Thing(StatefulGizmo): |
22 | 246 """Base class for things in a scene that you can interact with.""" |
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247 |
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248 # name of thing |
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249 NAME = None |
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250 |
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251 # sub-folder to look for resources in (defaults to scenes folder) |
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252 FOLDER = None |
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253 |
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254 # list of Interact objects |
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255 INTERACTS = {} |
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256 |
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257 # name first interact |
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258 INITIAL = None |
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259 |
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260 # Interact rectangle hi-light color (for debugging) |
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261 # (set to None to turn off) |
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262 if constants.DEBUG: |
75 | 263 _interact_hilight_color = Color('red') |
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264 else: |
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265 _interact_hilight_color = None |
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266 |
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267 def __init__(self): |
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268 StatefulGizmo.__init__(self) |
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269 # name of the thing |
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270 self.name = self.NAME |
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271 # folder for resource (None is overridden by scene folder) |
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272 self.folder = self.FOLDER |
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273 # interacts |
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274 self.interacts = self.INTERACTS |
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275 # these are set by set_scene |
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276 self.scene = None |
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277 self.state = None |
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278 self.current_interact = None |
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279 self.rect = None |
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280 # TODO: add masks |
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281 |
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282 def set_scene(self, scene): |
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283 assert self.scene is None |
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284 self.scene = scene |
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285 if self.folder is None: |
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286 self.folder = scene.FOLDER |
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287 self.state = scene.state |
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288 for interact in self.interacts.itervalues(): |
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289 interact.set_thing(self) |
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290 self.set_interact(self.INITIAL) |
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291 |
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292 def set_interact(self, name): |
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293 self.current_interact = self.interacts[name] |
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294 self.rect = self.current_interact.interact_rect |
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295 assert self.rect is not None, name |
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296 |
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297 def get_description(self): |
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298 return None |
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299 |
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300 def is_interactive(self): |
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301 return True |
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302 |
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303 def enter(self, item): |
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304 """Called when the cursor enters the Thing.""" |
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305 print "Enter %r -> %r" % (item, self) |
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306 |
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307 def leave(self): |
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308 """Called when the cursr leaves the Thing.""" |
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309 print "Leaves %r" % self |
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310 |
22 | 311 def interact(self, item): |
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312 if not self.is_interactive(): |
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313 return |
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314 if item is None: |
78 | 315 return self.interact_without() |
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316 else: |
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317 handler = getattr(self, 'interact_with_' + item.name, None) |
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318 if handler is not None: |
78 | 319 return handler(item) |
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320 else: |
78 | 321 return self.interact_default(item) |
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322 |
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323 def interact_without(self): |
78 | 324 return self.interact_default(None) |
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325 |
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326 def interact_default(self, item): |
78 | 327 return Result("It doesn't work.") |
22 | 328 |
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329 def draw(self, surface): |
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330 self.current_interact.draw(surface) |
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331 if self._interact_hilight_color is not None: |
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332 frame_rect(surface, self._interact_hilight_color, |
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333 self.rect.inflate(1, 1), 1) |
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334 |
22 | 335 |
336 class Item(object): | |
337 """Base class for inventory items.""" | |
338 | |
35 | 339 # image for inventory |
340 INVENTORY_IMAGE = None | |
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341 |
35 | 342 def __init__(self, name): |
343 self.name = name | |
344 self.inventory_image = get_image('items', self.INVENTORY_IMAGE) | |
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345 # TODO: needs cursor |
22 | 346 |
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347 def get_inventory_image(self): |
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348 return self.inventory_image |
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349 |