Mercurial > rinkhals

annotate gamelib/engine.py @ 229:96d440bebdaa

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Non-permenant high score table
author Neil Muller <drnlmuller@gmail.com>
date Fri, 04 Sep 2009 23:40:13 +0000
parents 527a5d4e3fa3
children d3d5352f5853
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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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6 import gameboard
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7 import gameover
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8 import sound
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9 import constants
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10 import mainmenu
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11 import helpscreen
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12
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13 class Engine(Game):
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14 def __init__(self, main_app):
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15 self.main_app = main_app
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16 self.clock = pygame.time.Clock()
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17 self.main_menu = mainmenu.make_main_menu()
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18 self._open_window = None
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19 self.scoreboard = gameover.ScoreTable()
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20
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21 def tick(self):
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22 """Tic toc."""
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23 pygame.time.wait(10)
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24
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25 def open_window(self, window):
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26 """Open a widget as the main window."""
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27 if self._open_window is not None:
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28 self.main_app.close(self._open_window)
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29 self.main_app.open(window)
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30 self._open_window = window
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31
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32 def create_game_board(self):
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33 """Create and open a gameboard window."""
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34 self.gameboard = gameboard.GameBoard(self.main_app)
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35 self.open_window(self.gameboard.get_top_widget())
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36
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37 def set_main_menu(self):
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38 """Open the main menu"""
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39 self.open_window(self.main_menu)
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40
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41 def set_help_screen(self):
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42 """Open the main menu"""
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43 help_screen = helpscreen.make_help_screen()
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44 self.open_window(help_screen)
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45
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46 def create_game_over(self):
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47 """Create and open the Game Over window"""
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48 game_over = gameover.create_game_over(self.gameboard, self.scoreboard)
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49 self.open_window(game_over)
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50
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51 class MainMenuState(State):
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52 def init(self):
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53 sound.stop_background_music()
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54 self.game.set_main_menu()
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55
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56 def event(self, e):
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57 if events_equal(e, START_DAY):
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58 self.game.create_game_board()
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59 return DayState(self.game)
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60 elif events_equal(e, GO_HELP_SCREEN):
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61 return HelpScreenState(self.game)
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62 elif e.type is KEYDOWN:
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63 if e.key == K_ESCAPE:
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64 return Quit(self.game)
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65 elif e.key == K_s:
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66 self.game.create_game_board()
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67 return DayState(self.game)
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68 elif e.key == K_i:
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69 return HelpScreenState(self.game)
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70 elif e.type is not QUIT:
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71 self.game.main_app.event(e)
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73 def paint(self, screen):
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74 screen.fill((0,0,0))
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75 self.game.main_app.paint(screen)
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76 pygame.display.flip()
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77
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78 def update(self, screen):
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79 update = self.game.main_app.update(screen)
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80 pygame.display.update(update)
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81
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82 class HelpScreenState(State):
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83 def init(self):
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84 sound.stop_background_music()
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85 self.game.set_help_screen()
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86
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87 def event(self, e):
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88 if e.type is KEYDOWN and e.key == K_ESCAPE:
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89 return MainMenuState(self.game)
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90 elif events_equal(e, GO_MAIN_MENU):
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91 return MainMenuState(self.game)
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92 elif e.type is not QUIT:
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93 self.game.main_app.event(e)
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94
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95 def paint(self, screen):
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96 screen.fill((0,0,0))
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97 self.game.main_app.paint(screen)
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98 pygame.display.flip()
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99
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100 def update(self, screen):
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101 update = self.game.main_app.update(screen)
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102 pygame.display.update(update)
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103
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104 class DayState(State):
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105 def init(self):
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106 """Add some chickens to the farm"""
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107 sound.stop_background_music()
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108 self.game.gameboard.start_day()
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109
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110 sound.play_sound("daybreak.ogg")
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111 # disable timer
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112 pygame.time.set_timer(MOVE_FOX_ID, 0)
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113 pygame.time.set_timer(ANIM_ID, 50)
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114 self.game.gameboard.advance_day()
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115 self.game.gameboard.clear_foxes()
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116 sound.background_music("daytime.ogg")
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117 self.game.gameboard.hatch_eggs()
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118
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119 def event(self, e):
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120 if events_equal(e, START_NIGHT):
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121 return NightState(self.game)
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122 elif e.type is KEYDOWN and e.key == K_ESCAPE:
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123 self.game.gameboard.reset_states()
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124 return GameOver(self.game)
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125 elif e.type is ANIM_ID:
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126 self.game.gameboard.run_animations()
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127 elif e.type is KEYDOWN and e.key == K_n:
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128 return pygame.event.post(START_NIGHT)
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129 elif events_equal(e, GO_MAIN_MENU):
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130 return MainMenuState(self.game)
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131 elif e.type is not QUIT:
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132 self.game.main_app.event(e)
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133
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134 def paint(self, screen):
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135 self.game.main_app.paint(screen)
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136 pygame.display.flip()
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137
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138 def update(self, screen):
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139 self.game.gameboard.update()
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140 update = self.game.main_app.update(screen)
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141 pygame.display.update(update)
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142
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143 def loop(self):
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144 self.game.gameboard.loop()
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145
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146 class NightState(State):
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147 def init(self):
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148 """Add some foxes to the farm"""
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149 sound.stop_background_music()
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150 self.game.gameboard.start_night()
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151
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152 sound.play_sound("nightfall.ogg")
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153 # Add a timer to the event queue
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154 self.cycle_count = 0
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155 self.cycle_time = 200
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156 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time)
202
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157 pygame.time.set_timer(ANIM_ID, 50)
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158 self.game.gameboard.spawn_foxes()
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159 sound.background_music("nighttime.ogg")
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160
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161 self.game.gameboard.lay_eggs()
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162
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163 def event(self, e):
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164 if events_equal(e, START_DAY):
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165 if self.game.gameboard.is_game_over():
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166 return GameOver(self.game)
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167 return DayState(self.game)
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168 elif e.type is KEYDOWN and e.key == K_d:
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169 if self.cycle_time > 100:
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170 self.cycle_time = 50
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171 pygame.time.set_timer(ANIM_ID, 25)
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172 else:
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173 self.cycle_time = 200
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174 pygame.time.set_timer(ANIM_ID, 50)
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175 pygame.time.set_timer(MOVE_FOX_ID, self.cycle_time)
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176 elif e.type is KEYDOWN and e.key == K_ESCAPE:
203
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177 self.game.gameboard.set_cursor()
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178 return GameOver(self.game)
202
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179 elif e.type is ANIM_ID:
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180 self.game.gameboard.run_animations()
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181 elif e.type is MOVE_FOX_ID:
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182 self.cycle_count += 1
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183 if self.cycle_count > constants.NIGHT_LENGTH:
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184 return pygame.event.post(START_DAY)
122
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parents: 118
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185 if self.game.gameboard.move_foxes():
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186 # All foxes are gone/safe, so dawn happens
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187 return pygame.event.post(START_DAY)
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188 elif e.type is not QUIT:
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diff changeset
189 self.game.main_app.event(e)
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190
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191 def loop(self):
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192 self.game.gameboard.loop()
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193
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194 def paint(self, screen):
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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):
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parents: 142
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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
139
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203 class GameOver(State):
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204 def init(self):
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205 """Setup everything"""
156
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parents: 151
diff changeset
206 sound.stop_background_music()
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parents: 142
diff changeset
207 self.game.create_game_over()
142
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parents: 141
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208 pygame.time.set_timer(MOVE_FOX_ID, 0)
202
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diff changeset
209 pygame.time.set_timer(ANIM_ID, 0)
139
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210
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211 def event(self, e):
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212 if e.type is KEYDOWN:
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213 if e.key == K_ESCAPE:
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214 return MainMenuState(self.game)
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215 elif events_equal(e, GO_MAIN_MENU):
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216 return MainMenuState(self.game)
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217 elif e.type is not QUIT:
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diff changeset
218 self.game.main_app.event(e)
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219
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220 def paint(self, screen):
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diff changeset
221 screen.fill((0,0,0))
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222 self.game.main_app.paint(screen)
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223 pygame.display.flip()
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224
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225 def update(self, screen):
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226 update = self.game.main_app.update(screen)
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227 pygame.display.update(update)
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diff changeset
228
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229 # pygame events
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230
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231 def events_equal(e1, e2):
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232 """Compare two user events."""
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parents:
diff changeset
233 return (e1.type is e2.type and e1.name == e2.name)
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parents:
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234
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235 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY")
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236 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT")
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237 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU")
179
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238 GO_HELP_SCREEN = pygame.event.Event(USEREVENT, name="GO_HELP_SCREEN")
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diff changeset
239 MOVE_FOX_ID = USEREVENT + 1
202
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diff changeset
240 ANIM_ID = USEREVENT + 6
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diff changeset
241 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES")
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parents:
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242 QUIT = pygame.event.Event(QUIT)