Mercurial > rinkhals
annotate gamelib/engine.py @ 447:f04a2490c35f
The sub-toolbar rewrite, the finally not crashing version
author | Neil Muller <drnlmuller@gmail.com> |
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date | Sat, 21 Nov 2009 19:58:49 +0000 |
parents | 2b4cd86dfcaf |
children | e0b11d684ee8 |
rev | line source |
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1 """Game engine and states.""" |
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2 from pgu.engine import Game, State, Quit |
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3 import pygame |
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4 from pygame.locals import USEREVENT, QUIT, KEYDOWN, K_ESCAPE, K_n, K_d, K_s, K_i |
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5 |
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6 import gameboard |
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7 import gameover |
94 | 8 import sound |
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9 import constants |
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10 import mainmenu |
179 | 11 import helpscreen |
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12 import loadlevel |
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13 import level |
336 | 14 from misc import check_exit |
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15 |
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16 class Engine(Game): |
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17 def __init__(self, main_app, level_name): |
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18 self.main_app = main_app |
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19 self.clock = pygame.time.Clock() |
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20 self.level = level.Level(level_name) |
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21 self._open_window = None |
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22 self.gameboard = None |
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23 self.level_loader = None |
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24 |
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25 def tick(self): |
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26 """Tic toc.""" |
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27 pygame.time.wait(10) |
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28 |
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29 def load_new_level(self): |
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30 self.level = self.level_loader.cur_level |
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31 |
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32 def open_window(self, window): |
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33 """Open a widget as the main window.""" |
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34 if self._open_window is not None: |
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35 self.main_app.close(self._open_window) |
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36 self.main_app.open(window) |
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37 self._open_window = window |
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38 |
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39 def create_game_board(self): |
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40 """Create and open a gameboard window.""" |
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41 self.gameboard = gameboard.GameBoard(self.main_app, |
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42 self.level) |
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43 self.open_window(self.gameboard.get_top_widget()) |
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44 |
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45 def set_main_menu(self): |
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46 """Open the main menu""" |
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47 self.scoreboard = gameover.ScoreTable(self.level) |
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48 self.level_loader = None |
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49 main_menu = mainmenu.make_main_menu(self.level) |
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50 self.open_window(main_menu) |
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51 |
179 | 52 def set_help_screen(self): |
53 """Open the main menu""" | |
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54 help_screen = helpscreen.make_help_screen(self.level) |
179 | 55 self.open_window(help_screen) |
56 | |
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57 def set_level_screen(self): |
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58 """Open the Load Level screen""" |
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59 level_screen, self.level_loader = loadlevel.make_load_screen(self.level) |
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60 self.open_window(level_screen) |
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61 |
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62 def create_game_over(self): |
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63 """Create and open the Game Over window""" |
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64 game_over = gameover.create_game_over(self.gameboard, |
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65 self.scoreboard[self.level.level_name], self.level) |
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66 self.gameboard = None |
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67 self.open_window(game_over) |
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68 |
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69 def event(self, e): |
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70 if not Game.event(self, e): |
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71 if self.gameboard: |
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72 return self.gameboard.event(e) |
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73 return False |
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74 return True |
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75 |
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76 |
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77 class MainMenuState(State): |
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78 def init(self): |
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79 sound.stop_background_music() |
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80 self.game.set_main_menu() |
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81 |
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82 def event(self, e): |
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83 if events_equal(e, START_DAY): |
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84 self.game.create_game_board() |
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85 return DayState(self.game) |
179 | 86 elif events_equal(e, GO_HELP_SCREEN): |
87 return HelpScreenState(self.game) | |
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88 elif events_equal(e, GO_LEVEL_SCREEN): |
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89 return LevelScreenState(self.game) |
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90 elif e.type is KEYDOWN: |
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91 if e.key == K_ESCAPE: |
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92 return Quit(self.game) |
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93 elif e.key == K_s: |
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94 self.game.create_game_board() |
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95 return DayState(self.game) |
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96 elif e.key == K_i: |
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97 return HelpScreenState(self.game) |
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98 elif e.type is not QUIT: |
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99 self.game.main_app.event(e) |
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100 |
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101 def paint(self, screen): |
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102 screen.fill((0,0,0)) |
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103 self.game.main_app.paint(screen) |
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104 pygame.display.flip() |
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105 |
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106 def update(self, screen): |
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107 update = self.game.main_app.update(screen) |
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108 pygame.display.update(update) |
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109 |
179 | 110 class HelpScreenState(State): |
111 def init(self): | |
112 sound.stop_background_music() | |
113 self.game.set_help_screen() | |
114 | |
115 def event(self, e): | |
116 if e.type is KEYDOWN and e.key == K_ESCAPE: | |
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117 return MainMenuState(self.game) |
179 | 118 elif events_equal(e, GO_MAIN_MENU): |
119 return MainMenuState(self.game) | |
120 elif e.type is not QUIT: | |
121 self.game.main_app.event(e) | |
122 | |
123 def paint(self, screen): | |
124 screen.fill((0,0,0)) | |
125 self.game.main_app.paint(screen) | |
126 pygame.display.flip() | |
127 | |
128 def update(self, screen): | |
129 update = self.game.main_app.update(screen) | |
130 pygame.display.update(update) | |
131 | |
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132 |
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133 class LevelScreenState(State): |
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134 def init(self): |
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135 sound.stop_background_music() |
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136 self.game.set_level_screen() |
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137 |
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138 def event(self, e): |
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139 if e.type is KEYDOWN and e.key == K_ESCAPE: |
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140 return MainMenuState(self.game) |
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141 elif events_equal(e, GO_MAIN_MENU): |
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142 return MainMenuState(self.game) |
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143 elif events_equal(e, DO_LOAD_LEVEL): |
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144 self.game.load_new_level() |
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145 return MainMenuState(self.game) |
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146 elif e.type is not QUIT: |
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147 self.game.main_app.event(e) |
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148 |
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149 def paint(self, screen): |
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150 screen.fill((0,0,0)) |
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151 self.game.main_app.paint(screen) |
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152 pygame.display.flip() |
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153 |
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154 def update(self, screen): |
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155 update = self.game.main_app.update(screen) |
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156 pygame.display.update(update) |
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157 |
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158 |
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159 class DayState(State): |
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160 def init(self): |
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161 """Add some chickens to the farm""" |
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162 sound.stop_background_music() |
223 | 163 self.game.gameboard.start_day() |
30 | 164 |
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165 sound.play_sound("daybreak.ogg") |
29 | 166 # disable timer |
167 pygame.time.set_timer(MOVE_FOX_ID, 0) | |
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168 sound.background_music("daytime.ogg") |
336 | 169 self.dialog = None |
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170 |
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171 def event(self, e): |
336 | 172 if self.dialog and self.dialog.running: |
173 if self.dialog.event(e): | |
174 return | |
175 elif self.dialog: | |
176 if self.dialog.do_quit: | |
177 self.dialog = None | |
178 self.game.gameboard.reset_states() | |
179 return GameOver(self.game) | |
180 self.dialog=None | |
181 return | |
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182 if events_equal(e, START_NIGHT): |
245
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183 self.game.gameboard.reset_states() |
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184 return NightState(self.game) |
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185 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
336 | 186 self.dialog = check_exit() |
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187 elif e.type is KEYDOWN and e.key == K_n: |
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188 return pygame.event.post(START_NIGHT) |
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189 elif events_equal(e, GO_MAIN_MENU): |
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190 return MainMenuState(self.game) |
14 | 191 elif e.type is not QUIT: |
151
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192 self.game.main_app.event(e) |
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193 |
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194 def paint(self, screen): |
151
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195 self.game.main_app.paint(screen) |
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196 pygame.display.flip() |
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197 |
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198 def update(self, screen): |
151
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199 self.game.gameboard.update() |
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200 update = self.game.main_app.update(screen) |
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201 pygame.display.update(update) |
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202 |
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203 def loop(self): |
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204 self.game.gameboard.loop() |
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205 |
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206 class NightState(State): |
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207 def init(self): |
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208 """Add some foxes to the farm""" |
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209 sound.stop_background_music() |
223 | 210 self.game.gameboard.start_night() |
30 | 211 |
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212 sound.play_sound("nightfall.ogg") |
422
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213 |
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214 self.game.gameboard.chickens_scatter() |
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215 self.game.gameboard.chickens_chop_wood() |
29 | 216 # Add a timer to the event queue |
217 self.cycle_count = 0 | |
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218 self.cycle_time = SLOW__SPEED |
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219 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time) |
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220 sound.background_music("nighttime.ogg") |
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221 |
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|
222 self.dialog = None |
116
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|
223 |
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224 def event(self, e): |
349
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225 if self.dialog and self.dialog.running: |
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226 if self.dialog.event(e): |
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227 return |
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228 elif self.dialog: |
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229 if self.dialog.do_quit: |
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230 self.dialog = None |
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231 self.game.gameboard.reset_states() |
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232 return GameOver(self.game) |
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|
233 self.dialog=None |
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|
234 return |
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|
235 if events_equal(e, START_DAY): |
392
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diff
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|
236 if self.game.level.is_game_over(self.game.gameboard): |
139
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237 return GameOver(self.game) |
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|
238 return DayState(self.game) |
320
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diff
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239 elif (e.type is KEYDOWN and e.key == K_d) or \ |
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240 events_equal(e, FAST_FORWARD): |
435
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241 if self.cycle_time > FAST__SPEED: |
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242 self.cycle_time = FAST__SPEED |
222
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213
diff
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|
243 else: |
435
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244 self.cycle_time = SLOW__SPEED |
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245 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time) |
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246 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
349
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247 self.dialog = check_exit() |
29 | 248 elif e.type is MOVE_FOX_ID: |
369
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249 # ensure no timers trigger while we're running |
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250 pygame.time.set_timer(MOVE_FOX_ID, 0) |
436
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251 cur_time = pygame.time.get_ticks() |
369
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252 # Clear any queued timer events, so we don't full the queue |
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253 pygame.event.clear(MOVE_FOX_ID) |
237 | 254 # Ensure any outstanding animitions get cleaned up |
29 | 255 self.cycle_count += 1 |
139
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256 if self.cycle_count > constants.NIGHT_LENGTH: |
29 | 257 return pygame.event.post(START_DAY) |
396
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258 if self.game.gameboard.do_night_step(): |
122
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259 # All foxes are gone/safe, so dawn happens |
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260 return pygame.event.post(START_DAY) |
369
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261 # Re-enable timers |
436
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262 diff = pygame.time.get_ticks() - cur_time |
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263 time_left = self.cycle_time - diff |
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264 if time_left < 0: |
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265 time_left = self.cycle_time |
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|
266 pygame.time.set_timer(MOVE_FOX_ID, time_left) |
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267 elif e.type is not QUIT: |
151
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|
268 self.game.main_app.event(e) |
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269 |
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270 def loop(self): |
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271 self.game.gameboard.loop() |
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272 |
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273 def paint(self, screen): |
151
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274 self.game.main_app.paint(screen) |
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275 pygame.display.flip() |
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276 |
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277 def update(self, screen): |
151
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|
278 self.game.gameboard.update() |
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279 update = self.game.main_app.update(screen) |
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280 pygame.display.update(update) |
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281 |
139
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282 class GameOver(State): |
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283 def init(self): |
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284 """Setup everything""" |
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285 sound.stop_background_music() |
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286 self.game.create_game_over() |
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287 pygame.time.set_timer(MOVE_FOX_ID, 0) |
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288 |
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289 def event(self, e): |
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290 if e.type is KEYDOWN: |
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291 if e.key == K_ESCAPE: |
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292 return MainMenuState(self.game) |
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293 elif events_equal(e, GO_MAIN_MENU): |
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294 return MainMenuState(self.game) |
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295 elif e.type is not QUIT: |
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296 self.game.main_app.event(e) |
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297 |
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298 def paint(self, screen): |
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299 screen.fill((0,0,0)) |
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300 self.game.main_app.paint(screen) |
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301 pygame.display.flip() |
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302 |
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303 def update(self, screen): |
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304 update = self.game.main_app.update(screen) |
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305 pygame.display.update(update) |
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306 |
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307 # pygame events |
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308 |
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309 def events_equal(e1, e2): |
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310 """Compare two user events.""" |
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311 return (e1.type is e2.type and e1.name == e2.name) |
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312 |
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313 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY") |
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314 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT") |
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315 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU") |
179 | 316 GO_HELP_SCREEN = pygame.event.Event(USEREVENT, name="GO_HELP_SCREEN") |
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317 GO_LEVEL_SCREEN = pygame.event.Event(USEREVENT, name="GO_LEVEL_SCREEN") |
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318 DO_LOAD_LEVEL = pygame.event.Event(USEREVENT, name="DO_LEVEL_SCREEN") |
320
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319 FAST_FORWARD = pygame.event.Event(USEREVENT, name="FAST_FORWARD") |
29 | 320 MOVE_FOX_ID = USEREVENT + 1 |
321 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES") | |
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322 QUIT = pygame.event.Event(QUIT) |
233
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323 |
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324 # Due to the way pgu's loop timing works, these will only get proceesed |
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325 # at intervals of 10ms, so there's no point in them not being multiples of 10 |
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326 FAST__SPEED=80 |
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327 SLOW__SPEED=200 |