Mercurial > rinkhals

annotate gamelib/engine.py @ 94:fa8d8fc1bf5b

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Added some sounds
author David Fraser <davidf@sjsoft.com>
date Wed, 02 Sep 2009 11:25:42 +0000
parents db78e8b1f8b0
children 725b292ca07b
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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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7 import gameboard
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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 self.game.gameboard.tv.sun(True)
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49
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50 sound.play_sound("chicken5.ogg")
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51 # disable timer
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52 pygame.time.set_timer(MOVE_FOX_ID, 0)
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53 self.game.gameboard.clear_foxes()
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54 self.game.gameboard.update_chickens()
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55
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56 def event(self, e):
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57 if events_equal(e, START_NIGHT):
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58 return NightState(self.game)
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59 elif e.type is KEYDOWN and e.key == K_ESCAPE:
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60 return MainMenuState(self.game)
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61 elif e.type is KEYDOWN and e.key == K_n:
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62 return pygame.event.post(START_NIGHT)
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63 elif events_equal(e, GO_MAIN_MENU):
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64 return MainMenuState(self.game)
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65 elif e.type is not QUIT:
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66 self.game.gameboard.event(e)
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67
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68 def paint(self, screen):
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69 self.game.gameboard.paint(screen)
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70 pygame.display.flip()
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71
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72 def update(self, screen):
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73 update = self.game.gameboard.update(screen)
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74 pygame.display.update(update)
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75
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76 def loop(self):
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77 self.game.gameboard.loop()
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78
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79 class NightState(State):
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80 def init(self):
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81 """Add some foxes to the farm"""
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82 self.game.gameboard.tv.sun(False)
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83
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84 # Add a timer to the event queue
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85 self.cycle_count = 0
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86 pygame.time.set_timer(MOVE_FOX_ID, 200)
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87 self.game.gameboard.spawn_foxes()
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88
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89 def event(self, e):
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90 if events_equal(e, START_DAY):
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91 return DayState(self.game)
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92 elif e.type is KEYDOWN and e.key == K_d:
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93 return pygame.event.post(START_DAY)
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94 elif e.type is KEYDOWN and e.key == K_ESCAPE:
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95 return MainMenuState(self.game)
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96 elif e.type is MOVE_FOX_ID:
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97 self.cycle_count += 1
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98 if self.cycle_count > NIGHT_LENGTH:
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99 return pygame.event.post(START_DAY)
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100 return self.game.gameboard.move_foxes()
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101 elif e.type is not QUIT:
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102 self.game.gameboard.event(e)
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103
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104 def loop(self):
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105 self.game.gameboard.loop()
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106
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107 def paint(self, screen):
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108 self.game.gameboard.paint(screen)
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109 pygame.display.flip()
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110
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111 def update(self, screen):
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112 update = self.game.gameboard.update(screen)
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113 pygame.display.update(update)
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114
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115 # pygame events
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116
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117 def events_equal(e1, e2):
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118 """Compare two user events."""
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119 return (e1.type is e2.type and e1.name == e2.name)
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120
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121 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY")
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122 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT")
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123 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU")
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124 MOVE_FOX_ID = USEREVENT + 1
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125 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES")
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126 QUIT = pygame.event.Event(QUIT)
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127 NIGHT_LENGTH = 150