Mercurial > rinkhals
annotate gamelib/engine.py @ 80:ad9d1bc7ef0c
Kill foxes that don't reach safety
author | Neil Muller <drnlmuller@gmail.com> |
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date | Tue, 01 Sep 2009 11:21:43 +0000 |
parents | 18db99fda6bd |
children | db78e8b1f8b0 |
rev | line source |
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Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
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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 |
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8 |
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9 class Engine(Game): |
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10 def __init__(self, main_menu_app): |
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11 self.main_menu_app = main_menu_app |
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12 self.clock = pygame.time.Clock() |
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13 |
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14 def tick(self): |
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15 """Tic toc.""" |
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16 pygame.time.wait(10) |
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17 |
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18 def create_game_board(self): |
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19 self.gameboard = gameboard.GameBoard() |
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20 |
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21 class MainMenuState(State): |
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22 def event(self, e): |
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23 if events_equal(e, START_DAY): |
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24 self.game.create_game_board() |
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25 return DayState(self.game) |
31
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26 elif e.type is KEYDOWN: |
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27 if e.key == K_ESCAPE: |
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28 return Quit(self.game) |
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29 elif e.key == K_s: |
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30 self.game.create_game_board() |
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31 return DayState(self.game) |
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32 elif e.type is not QUIT: |
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33 self.game.main_menu_app.event(e) |
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34 |
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35 def paint(self, screen): |
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36 screen.fill((0,0,0)) |
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37 self.game.main_menu_app.paint(screen) |
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38 pygame.display.flip() |
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39 |
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40 def update(self, screen): |
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41 update = self.game.main_menu_app.update(screen) |
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42 pygame.display.update(update) |
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43 |
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44 class DayState(State): |
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45 def init(self): |
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46 """Add some chickens to the farm""" |
30 | 47 self.game.gameboard.tv.sun(True) |
48 | |
29 | 49 # disable timer |
50 pygame.time.set_timer(MOVE_FOX_ID, 0) | |
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51 self.game.gameboard.clear_foxes() |
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52 self.game.gameboard.update_chickens() |
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53 |
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54 def event(self, e): |
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55 if events_equal(e, START_NIGHT): |
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56 return NightState(self.game) |
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57 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
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58 return MainMenuState(self.game) |
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59 elif e.type is KEYDOWN and e.key == K_n: |
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60 return pygame.event.post(START_NIGHT) |
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61 elif events_equal(e, GO_MAIN_MENU): |
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62 return MainMenuState(self.game) |
14 | 63 elif e.type is not QUIT: |
64 self.game.gameboard.event(e) | |
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65 |
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66 def paint(self, screen): |
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67 self.game.gameboard.paint(screen) |
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68 pygame.display.flip() |
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69 |
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70 def update(self, screen): |
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71 update = self.game.gameboard.update(screen) |
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72 pygame.display.update(update) |
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73 |
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74 def loop(self): |
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75 self.game.gameboard.loop() |
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76 |
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77 class NightState(State): |
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78 def init(self): |
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79 """Add some foxes to the farm""" |
30 | 80 self.game.gameboard.tv.sun(False) |
81 | |
29 | 82 # Add a timer to the event queue |
83 self.cycle_count = 0 | |
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84 pygame.time.set_timer(MOVE_FOX_ID, 200) |
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85 self.game.gameboard.spawn_foxes() |
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86 |
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87 def event(self, e): |
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88 if events_equal(e, START_DAY): |
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89 return DayState(self.game) |
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90 elif e.type is KEYDOWN and e.key == K_d: |
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91 return pygame.event.post(START_DAY) |
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92 elif e.type is KEYDOWN and e.key == K_ESCAPE: |
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93 return MainMenuState(self.game) |
29 | 94 elif e.type is MOVE_FOX_ID: |
95 self.cycle_count += 1 | |
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96 if self.cycle_count > 50: |
29 | 97 return pygame.event.post(START_DAY) |
98 return self.game.gameboard.move_foxes() | |
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99 elif e.type is not QUIT: |
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100 self.game.gameboard.event(e) |
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101 |
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102 def loop(self): |
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103 self.game.gameboard.loop() |
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104 |
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105 def paint(self, screen): |
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106 self.game.gameboard.paint(screen) |
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107 pygame.display.flip() |
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108 |
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109 def update(self, screen): |
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110 update = self.game.gameboard.update(screen) |
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111 pygame.display.update(update) |
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112 |
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113 # pygame events |
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114 |
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115 def events_equal(e1, e2): |
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116 """Compare two user events.""" |
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117 return (e1.type is e2.type and e1.name == e2.name) |
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118 |
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119 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY") |
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120 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT") |
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121 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU") |
29 | 122 MOVE_FOX_ID = USEREVENT + 1 |
123 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES") | |
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124 QUIT = pygame.event.Event(QUIT) |