Mercurial > rinkhals
annotate gamelib/engine.py @ 541:450de9dfa106
Move gameboard event prodding into the widgets - better matches pgu internals
author | Neil Muller <drnlmuller@gmail.com> |
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date | Sat, 28 Nov 2009 10:02:38 +0000 |
parents | f4d1b9ff9558 |
children | 27c09c58d89d |
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 level |
336 | 13 from misc import check_exit |
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14 |
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15 class Engine(Game): |
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16 def __init__(self, main_app, level_name): |
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17 self.main_app = main_app |
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18 self.clock = pygame.time.Clock() |
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19 self.level = level.Level(level_name) |
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20 self._open_window = None |
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21 self.gameboard = None |
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22 |
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23 def tick(self): |
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24 """Tic toc.""" |
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25 pygame.time.wait(10) |
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26 |
532 | 27 def load_new_level(self, new_level): |
28 self.level = new_level | |
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29 |
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30 def open_window(self, window): |
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31 """Open a widget as the main window.""" |
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32 if self._open_window is not None: |
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33 self.main_app.close(self._open_window) |
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34 self.main_app.open(window) |
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35 self._open_window = window |
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36 |
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37 def create_game_board(self): |
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38 """Create and open a gameboard window.""" |
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39 self.gameboard = gameboard.GameBoard(self.main_app, |
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40 self.level) |
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41 self.open_window(self.gameboard.get_top_widget()) |
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42 |
532 | 43 def switch_gameboard(self, new_gameboard): |
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44 """Switch over to a new gameboard.""" |
532 | 45 self.gameboard = new_gameboard |
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46 self.gameboard.disp = self.main_app |
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47 self.gameboard.create_display() |
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48 self.open_window(self.gameboard.get_top_widget()) |
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49 |
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50 def set_main_menu(self): |
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51 """Open the main menu""" |
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52 self.scoreboard = gameover.ScoreTable(self.level) |
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53 main_menu = mainmenu.make_main_menu(self.level) |
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54 self.open_window(main_menu) |
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55 |
179 | 56 def set_help_screen(self): |
57 """Open the main menu""" | |
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58 help_screen = helpscreen.make_help_screen(self.level) |
179 | 59 self.open_window(help_screen) |
60 | |
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61 def create_game_over(self): |
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62 """Create and open the Game Over window""" |
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63 level = self.gameboard.level |
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64 game_over = gameover.create_game_over(self.gameboard, |
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65 self.scoreboard[level.level_name], 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 return Game.event(self, e) |
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71 |
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72 |
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73 class MainMenuState(State): |
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74 def init(self): |
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75 sound.stop_background_music() |
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76 self.game.set_main_menu() |
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77 |
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78 def event(self, e): |
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79 if events_equal(e, START_DAY): |
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80 self.game.create_game_board() |
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81 return DayState(self.game) |
179 | 82 elif events_equal(e, GO_HELP_SCREEN): |
83 return HelpScreenState(self.game) | |
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84 elif e.type is KEYDOWN: |
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85 if e.key == K_ESCAPE: |
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86 return Quit(self.game) |
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87 elif e.key == K_s: |
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88 self.game.create_game_board() |
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89 return DayState(self.game) |
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90 elif e.key == K_i: |
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91 return HelpScreenState(self.game) |
532 | 92 elif e.type is DO_LOAD_LEVEL: |
93 self.game.load_new_level(e.level) | |
94 return | |
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95 elif e.type is DO_LOAD_SAVEGAME: |
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96 self.game.switch_gameboard(e.gameboard) |
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97 e.gameboard.skip_next_start_day() |
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98 return DayState(self.game) |
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99 elif e.type is not QUIT: |
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100 self.game.main_app.event(e) |
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101 |
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102 def paint(self, screen): |
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103 screen.fill((0,0,0)) |
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104 self.game.main_app.paint(screen) |
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105 pygame.display.flip() |
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106 |
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107 def update(self, screen): |
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108 update = self.game.main_app.update(screen) |
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109 pygame.display.update(update) |
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110 |
179 | 111 class HelpScreenState(State): |
112 def init(self): | |
113 sound.stop_background_music() | |
114 self.game.set_help_screen() | |
115 | |
116 def event(self, e): | |
117 if e.type is KEYDOWN and e.key == K_ESCAPE: | |
180
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118 return MainMenuState(self.game) |
179 | 119 elif events_equal(e, GO_MAIN_MENU): |
120 return MainMenuState(self.game) | |
121 elif e.type is not QUIT: | |
122 self.game.main_app.event(e) | |
123 | |
124 def paint(self, screen): | |
125 screen.fill((0,0,0)) | |
126 self.game.main_app.paint(screen) | |
127 pygame.display.flip() | |
128 | |
129 def update(self, screen): | |
130 update = self.game.main_app.update(screen) | |
131 pygame.display.update(update) | |
132 | |
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133 |
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134 class DayState(State): |
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135 def init(self): |
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136 """Add some chickens to the farm""" |
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137 sound.stop_background_music() |
223 | 138 self.game.gameboard.start_day() |
30 | 139 |
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140 sound.play_sound("daybreak.ogg") |
29 | 141 # disable timer |
142 pygame.time.set_timer(MOVE_FOX_ID, 0) | |
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143 sound.background_music("daytime.ogg") |
336 | 144 self.dialog = None |
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145 |
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146 def event(self, e): |
336 | 147 if self.dialog and self.dialog.running: |
148 if self.dialog.event(e): | |
149 return | |
150 elif self.dialog: | |
151 if self.dialog.do_quit: | |
152 self.dialog = None | |
153 self.game.gameboard.reset_states() | |
154 return GameOver(self.game) | |
537 | 155 self.dialog = None |
336 | 156 return |
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157 if events_equal(e, START_NIGHT): |
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158 self.game.gameboard.reset_states() |
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159 return NightState(self.game) |
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160 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
336 | 161 self.dialog = check_exit() |
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162 elif e.type is KEYDOWN and e.key == K_n: |
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163 return pygame.event.post(START_NIGHT) |
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164 elif events_equal(e, GO_MAIN_MENU): |
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165 return MainMenuState(self.game) |
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166 elif e.type is DO_LOAD_SAVEGAME: |
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167 self.game.switch_gameboard(e.gameboard) |
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168 return |
14 | 169 elif e.type is not QUIT: |
151
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170 self.game.main_app.event(e) |
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171 |
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172 def paint(self, screen): |
151
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173 self.game.main_app.paint(screen) |
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174 pygame.display.flip() |
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175 |
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176 def update(self, screen): |
151
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177 self.game.gameboard.update() |
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178 update = self.game.main_app.update(screen) |
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179 pygame.display.update(update) |
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180 |
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181 def loop(self): |
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182 self.game.gameboard.loop() |
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183 |
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184 class NightState(State): |
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185 def init(self): |
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186 """Add some foxes to the farm""" |
99
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187 sound.stop_background_music() |
223 | 188 self.game.gameboard.start_night() |
30 | 189 |
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190 sound.play_sound("nightfall.ogg") |
422
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191 |
29 | 192 # Add a timer to the event queue |
193 self.cycle_count = 0 | |
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194 self.cycle_time = SLOW__SPEED |
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195 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time) |
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196 sound.background_music("nighttime.ogg") |
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197 |
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198 self.dialog = None |
116
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199 |
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200 def event(self, e): |
349
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201 if self.dialog and self.dialog.running: |
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202 if self.dialog.event(e): |
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203 return |
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204 elif self.dialog: |
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205 if self.dialog.do_quit: |
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206 self.dialog = None |
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207 self.game.gameboard.reset_states() |
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208 return GameOver(self.game) |
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209 self.dialog=None |
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210 return |
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211 if events_equal(e, START_DAY): |
469
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212 if self.game.gameboard.level.is_game_over(self.game.gameboard): |
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213 return GameOver(self.game) |
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214 return DayState(self.game) |
320
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215 elif (e.type is KEYDOWN and e.key == K_d) or \ |
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216 events_equal(e, FAST_FORWARD): |
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217 if self.cycle_time > FAST__SPEED: |
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218 self.cycle_time = FAST__SPEED |
222
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219 else: |
435
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220 self.cycle_time = SLOW__SPEED |
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221 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time) |
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222 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
349
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223 self.dialog = check_exit() |
29 | 224 elif e.type is MOVE_FOX_ID: |
369
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225 # ensure no timers trigger while we're running |
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226 pygame.time.set_timer(MOVE_FOX_ID, 0) |
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227 cur_time = pygame.time.get_ticks() |
369
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228 # Clear any queued timer events, so we don't full the queue |
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229 pygame.event.clear(MOVE_FOX_ID) |
237 | 230 # Ensure any outstanding animitions get cleaned up |
29 | 231 self.cycle_count += 1 |
139
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232 if self.cycle_count > constants.NIGHT_LENGTH: |
29 | 233 return pygame.event.post(START_DAY) |
396
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392
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234 if self.game.gameboard.do_night_step(): |
122
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235 # All foxes are gone/safe, so dawn happens |
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236 return pygame.event.post(START_DAY) |
369
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237 # Re-enable timers |
436
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238 diff = pygame.time.get_ticks() - cur_time |
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239 time_left = self.cycle_time - diff |
513
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512
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240 if time_left <= 0: |
436
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241 time_left = self.cycle_time |
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242 pygame.time.set_timer(MOVE_FOX_ID, time_left) |
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243 elif e.type is not QUIT: |
151
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244 self.game.main_app.event(e) |
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245 |
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246 def loop(self): |
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247 self.game.gameboard.loop() |
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248 |
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249 def paint(self, screen): |
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250 self.game.main_app.paint(screen) |
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251 pygame.display.flip() |
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252 |
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253 def update(self, screen): |
151
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254 self.game.gameboard.update() |
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255 update = self.game.main_app.update(screen) |
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256 pygame.display.update(update) |
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257 |
139
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258 class GameOver(State): |
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259 def init(self): |
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260 """Setup everything""" |
156
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diff
changeset
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261 sound.stop_background_music() |
151
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262 self.game.create_game_over() |
142
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263 pygame.time.set_timer(MOVE_FOX_ID, 0) |
139
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264 |
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265 def event(self, e): |
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266 if e.type is KEYDOWN: |
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267 if e.key == K_ESCAPE: |
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268 return MainMenuState(self.game) |
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269 elif events_equal(e, GO_MAIN_MENU): |
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270 return MainMenuState(self.game) |
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271 elif e.type is not QUIT: |
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272 self.game.main_app.event(e) |
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273 |
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274 def paint(self, screen): |
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275 screen.fill((0,0,0)) |
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276 self.game.main_app.paint(screen) |
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277 pygame.display.flip() |
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278 |
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279 def update(self, screen): |
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280 update = self.game.main_app.update(screen) |
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281 pygame.display.update(update) |
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282 |
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|
283 # pygame events |
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284 |
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285 def events_equal(e1, e2): |
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Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
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286 """Compare two user events.""" |
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Extremely rudimentary game engine.
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287 return (e1.type is e2.type and e1.name == e2.name) |
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Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
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288 |
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Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
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289 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY") |
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Extremely rudimentary game engine.
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290 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT") |
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Extremely rudimentary game engine.
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291 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU") |
179 | 292 GO_HELP_SCREEN = pygame.event.Event(USEREVENT, name="GO_HELP_SCREEN") |
320
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Switch between 'Finished Day' and 'Fast Forward' modes
Neil Muller <drnlmuller@gmail.com>
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312
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293 FAST_FORWARD = pygame.event.Event(USEREVENT, name="FAST_FORWARD") |
29 | 294 MOVE_FOX_ID = USEREVENT + 1 |
295 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES") | |
504
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Save game loading working again.
Simon Cross <hodgestar@gmail.com>
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296 DO_LOAD_SAVEGAME = USEREVENT + 2 |
532 | 297 DO_LOAD_LEVEL = USEREVENT + 3 |
11
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Simon Cross <hodgestar@gmail.com>
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298 QUIT = pygame.event.Event(QUIT) |
233
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Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
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299 |
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Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
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300 # Due to the way pgu's loop timing works, these will only get proceesed |
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Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
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301 # at intervals of 10ms, so there's no point in them not being multiples of 10 |
435
66bc99477155
Remove references to ANIM timer, so no longer relevant
Neil Muller <drnlmuller@gmail.com>
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302 FAST__SPEED=80 |
66bc99477155
Remove references to ANIM timer, so no longer relevant
Neil Muller <drnlmuller@gmail.com>
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303 SLOW__SPEED=200 |