Mercurial > rinkhals
annotate gamelib/engine.py @ 116:d539ef5a3333
Add basic chicken->egg cycle
author | Neil Muller <drnlmuller@gmail.com> |
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date | Wed, 02 Sep 2009 20:04:47 +0000 |
parents | f5d56688943b |
children | 2c76ed47fc44 |
rev | line source |
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11
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Extremely rudimentary game engine.
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1 """Game engine and states.""" |
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2 |
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3 from pgu.engine import Game, State, Quit |
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4 import pygame |
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5 from pygame.locals import USEREVENT, QUIT, KEYDOWN, K_ESCAPE, K_n, K_d, K_s |
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6 |
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7 import gameboard |
94 | 8 import sound |
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9 |
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10 class Engine(Game): |
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11 def __init__(self, main_menu_app): |
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12 self.main_menu_app = main_menu_app |
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13 self.clock = pygame.time.Clock() |
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14 |
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15 def tick(self): |
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16 """Tic toc.""" |
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17 pygame.time.wait(10) |
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18 |
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19 def create_game_board(self): |
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20 self.gameboard = gameboard.GameBoard() |
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21 |
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22 class MainMenuState(State): |
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23 def event(self, e): |
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24 if events_equal(e, START_DAY): |
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25 self.game.create_game_board() |
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26 return DayState(self.game) |
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27 elif e.type is KEYDOWN: |
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28 if e.key == K_ESCAPE: |
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29 return Quit(self.game) |
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30 elif e.key == K_s: |
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31 self.game.create_game_board() |
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32 return DayState(self.game) |
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33 elif e.type is not QUIT: |
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34 self.game.main_menu_app.event(e) |
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35 |
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36 def paint(self, screen): |
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37 screen.fill((0,0,0)) |
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38 self.game.main_menu_app.paint(screen) |
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39 pygame.display.flip() |
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40 |
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41 def update(self, screen): |
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42 update = self.game.main_menu_app.update(screen) |
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43 pygame.display.update(update) |
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44 |
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45 class DayState(State): |
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46 def init(self): |
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47 """Add some chickens to the farm""" |
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48 sound.stop_background_music() |
30 | 49 self.game.gameboard.tv.sun(True) |
50 | |
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51 sound.play_sound("daybreak.ogg") |
29 | 52 # disable timer |
53 pygame.time.set_timer(MOVE_FOX_ID, 0) | |
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54 self.game.gameboard.clear_foxes() |
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55 self.game.gameboard.update_chickens() |
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56 sound.background_music("daytime.ogg") |
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57 self.game.gameboard.hatch_eggs() |
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58 |
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59 def event(self, e): |
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60 if events_equal(e, START_NIGHT): |
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61 return NightState(self.game) |
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62 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
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63 return MainMenuState(self.game) |
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64 elif e.type is KEYDOWN and e.key == K_n: |
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65 return pygame.event.post(START_NIGHT) |
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66 elif events_equal(e, GO_MAIN_MENU): |
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67 return MainMenuState(self.game) |
14 | 68 elif e.type is not QUIT: |
69 self.game.gameboard.event(e) | |
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70 |
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71 def paint(self, screen): |
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72 self.game.gameboard.paint(screen) |
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73 pygame.display.flip() |
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74 |
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75 def update(self, screen): |
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76 update = self.game.gameboard.update(screen) |
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77 pygame.display.update(update) |
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78 |
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79 def loop(self): |
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80 self.game.gameboard.loop() |
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81 |
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82 class NightState(State): |
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83 def init(self): |
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84 """Add some foxes to the farm""" |
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85 sound.stop_background_music() |
30 | 86 self.game.gameboard.tv.sun(False) |
87 | |
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88 sound.play_sound("nightfall.ogg") |
29 | 89 # Add a timer to the event queue |
90 self.cycle_count = 0 | |
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91 pygame.time.set_timer(MOVE_FOX_ID, 200) |
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92 self.game.gameboard.spawn_foxes() |
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93 sound.background_music("nighttime.ogg") |
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94 |
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95 self.game.gameboard.lay_eggs() |
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96 |
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97 def event(self, e): |
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98 if events_equal(e, START_DAY): |
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99 return DayState(self.game) |
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100 elif e.type is KEYDOWN and e.key == K_d: |
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101 return pygame.event.post(START_DAY) |
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102 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
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103 return MainMenuState(self.game) |
29 | 104 elif e.type is MOVE_FOX_ID: |
105 self.cycle_count += 1 | |
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106 if self.cycle_count > NIGHT_LENGTH: |
29 | 107 return pygame.event.post(START_DAY) |
108 return self.game.gameboard.move_foxes() | |
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109 elif e.type is not QUIT: |
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110 self.game.gameboard.event(e) |
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111 |
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112 def loop(self): |
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113 self.game.gameboard.loop() |
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114 |
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115 def paint(self, screen): |
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116 self.game.gameboard.paint(screen) |
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117 pygame.display.flip() |
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118 |
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119 def update(self, screen): |
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120 update = self.game.gameboard.update(screen) |
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121 pygame.display.update(update) |
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122 |
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123 # pygame events |
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124 |
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125 def events_equal(e1, e2): |
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126 """Compare two user events.""" |
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127 return (e1.type is e2.type and e1.name == e2.name) |
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128 |
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129 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY") |
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130 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT") |
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131 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU") |
29 | 132 MOVE_FOX_ID = USEREVENT + 1 |
133 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES") | |
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134 QUIT = pygame.event.Event(QUIT) |
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135 NIGHT_LENGTH = 150 |