Mercurial > rinkhals

annotate gamelib/engine.py @ 390:2bcfccb8288e

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Make help screen use goal from the level
author Neil Muller <drnlmuller@gmail.com>
date Thu, 29 Oct 2009 21:06:44 +0000
parents 463802281182
children bb75979b58e6
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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 import level
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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.level = level.Level(level_name)
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19 self.clock = pygame.time.Clock()
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20 self.main_menu = mainmenu.make_main_menu(self.level)
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21 self._open_window = None
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22 self.scoreboard = gameover.ScoreTable(self.level)
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23 self.gameboard = None
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25 def tick(self):
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26 """Tic toc."""
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27 pygame.time.wait(10)
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28
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29 def open_window(self, window):
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30 """Open a widget as the main window."""
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31 if self._open_window is not None:
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32 self.main_app.close(self._open_window)
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33 self.main_app.open(window)
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34 self._open_window = window
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35
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36 def create_game_board(self):
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37 """Create and open a gameboard window."""
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38 self.gameboard = gameboard.GameBoard(self.main_app,
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39 self.level)
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40 self.open_window(self.gameboard.get_top_widget())
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41
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42 def set_main_menu(self):
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43 """Open the main menu"""
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44 self.open_window(self.main_menu)
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45
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46 def set_help_screen(self):
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47 """Open the main menu"""
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48 help_screen = helpscreen.make_help_screen(self.level)
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49 self.open_window(help_screen)
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51 def create_game_over(self):
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52 """Create and open the Game Over window"""
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53 game_over = gameover.create_game_over(self.gameboard,
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54 self.scoreboard[self.level.level_name], self.level)
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55 self.gameboard = None
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56 self.open_window(game_over)
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57
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58 def event(self, e):
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59 if not Game.event(self, e):
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60 if self.gameboard:
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61 return self.gameboard.event(e)
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62 return False
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63 return True
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65
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66 class MainMenuState(State):
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67 def init(self):
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68 sound.stop_background_music()
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69 self.game.set_main_menu()
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70
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71 def event(self, e):
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72 if events_equal(e, START_DAY):
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73 self.game.create_game_board()
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74 return DayState(self.game)
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75 elif events_equal(e, GO_HELP_SCREEN):
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76 return HelpScreenState(self.game)
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77 elif e.type is KEYDOWN:
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78 if e.key == K_ESCAPE:
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79 return Quit(self.game)
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80 elif e.key == K_s:
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81 self.game.create_game_board()
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82 return DayState(self.game)
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83 elif e.key == K_i:
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84 return HelpScreenState(self.game)
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85 elif e.type is not QUIT:
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86 self.game.main_app.event(e)
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88 def paint(self, screen):
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89 screen.fill((0,0,0))
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90 self.game.main_app.paint(screen)
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91 pygame.display.flip()
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92
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93 def update(self, screen):
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94 update = self.game.main_app.update(screen)
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95 pygame.display.update(update)
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96
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97 class HelpScreenState(State):
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98 def init(self):
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99 sound.stop_background_music()
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100 self.game.set_help_screen()
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101
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102 def event(self, e):
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103 if e.type is KEYDOWN and e.key == K_ESCAPE:
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104 return MainMenuState(self.game)
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105 elif events_equal(e, GO_MAIN_MENU):
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106 return MainMenuState(self.game)
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107 elif e.type is not QUIT:
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108 self.game.main_app.event(e)
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109
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110 def paint(self, screen):
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111 screen.fill((0,0,0))
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112 self.game.main_app.paint(screen)
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113 pygame.display.flip()
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114
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115 def update(self, screen):
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116 update = self.game.main_app.update(screen)
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117 pygame.display.update(update)
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118
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119 class DayState(State):
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120 def init(self):
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121 """Add some chickens to the farm"""
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122 sound.stop_background_music()
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123 self.game.gameboard.start_day()
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124
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125 sound.play_sound("daybreak.ogg")
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126 # disable timer
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127 pygame.time.set_timer(MOVE_FOX_ID, 0)
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128 pygame.time.set_timer(ANIM_ID, SLOW_ANIM_SPEED)
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129 self.game.gameboard.advance_day()
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130 self.game.gameboard.clear_foxes()
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131 sound.background_music("daytime.ogg")
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132 self.game.gameboard.hatch_eggs()
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133 self.dialog = None
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134
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135 def event(self, e):
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136 if self.dialog and self.dialog.running:
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137 if self.dialog.event(e):
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138 return
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139 elif self.dialog:
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140 if self.dialog.do_quit:
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parents: 320
diff changeset
141 self.dialog = None
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parents: 320
diff changeset
142 self.game.gameboard.reset_states()
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parents: 320
diff changeset
143 return GameOver(self.game)
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parents: 320
diff changeset
144 self.dialog=None
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parents: 320
diff changeset
145 return
11
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parents:
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146 if events_equal(e, START_NIGHT):
245
634491bf37e8 Change toolbar to gui.Toolbar -- gives nicer highlighting.
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parents: 237
diff changeset
147 self.game.gameboard.reset_states()
11
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parents:
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148 return NightState(self.game)
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parents:
diff changeset
149 elif e.type is KEYDOWN and e.key == K_ESCAPE:
336
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parents: 320
diff changeset
150 self.dialog = check_exit()
202
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parents: 183
diff changeset
151 elif e.type is ANIM_ID:
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parents: 183
diff changeset
152 self.game.gameboard.run_animations()
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parents: 15
diff changeset
153 elif e.type is KEYDOWN and e.key == K_n:
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parents: 15
diff changeset
154 return pygame.event.post(START_NIGHT)
11
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Simon Cross <hodgestar@gmail.com>
parents:
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155 elif events_equal(e, GO_MAIN_MENU):
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Simon Cross <hodgestar@gmail.com>
parents:
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156 return MainMenuState(self.game)
14
d7f295c06a4b Split gameboard screen.
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parents: 12
diff changeset
157 elif e.type is not QUIT:
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
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parents: 142
diff changeset
158 self.game.main_app.event(e)
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parents:
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159
12
8a7319e4853a Hooked in the game board.
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diff changeset
160 def paint(self, screen):
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
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parents: 142
diff changeset
161 self.game.main_app.paint(screen)
12
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parents: 11
diff changeset
162 pygame.display.flip()
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parents: 11
diff changeset
163
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diff changeset
164 def update(self, screen):
151
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parents: 142
diff changeset
165 self.game.gameboard.update()
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parents: 142
diff changeset
166 update = self.game.main_app.update(screen)
12
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parents: 11
diff changeset
167 pygame.display.update(update)
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Jeremy Thurgood <firxen@gmail.com>
parents: 11
diff changeset
168
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parents: 11
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169 def loop(self):
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170 self.game.gameboard.loop()
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parents: 11
diff changeset
171
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parents:
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172 class NightState(State):
25
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173 def init(self):
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174 """Add some foxes to the farm"""
99
f5d56688943b Added background music support, and daytime and night time music (really animal sounds, not music)
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parents: 98
diff changeset
175 sound.stop_background_music()
223
527a5d4e3fa3 Disable tools at night.
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parents: 222
diff changeset
176 self.game.gameboard.start_night()
30
2eec29085060 Color night and day.
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parents: 29
diff changeset
177
98
725b292ca07b Added sounds killing foxes and chickens, and nightfall
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parents: 94
diff changeset
178 sound.play_sound("nightfall.ogg")
29
2e88c680672c Minimal fox raid logic
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parents: 25
diff changeset
179 # Add a timer to the event queue
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parents: 25
diff changeset
180 self.cycle_count = 0
233
d3d5352f5853 Twek speed loop. Document animation assumptions
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parents: 229
diff changeset
181 self.cycle_time = SLOW_ANIM_SPEED
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parents: 229
diff changeset
182 pygame.time.set_timer(MOVE_FOX_ID, 4*self.cycle_time)
d3d5352f5853 Twek speed loop. Document animation assumptions
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parents: 229
diff changeset
183 pygame.time.set_timer(ANIM_ID, self.cycle_time)
69
18db99fda6bd Move spawing code from engine to gameboard - seems more natural.
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parents: 31
diff changeset
184 self.game.gameboard.spawn_foxes()
99
f5d56688943b Added background music support, and daytime and night time music (really animal sounds, not music)
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parents: 98
diff changeset
185 sound.background_music("nighttime.ogg")
25
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parents: 15
diff changeset
186
116
d539ef5a3333 Add basic chicken->egg cycle
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parents: 99
diff changeset
187 self.game.gameboard.lay_eggs()
349
a36ab7dd0eb9 Fix 'Are You Sure?' dialog to work at night
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parents: 346
diff changeset
188 self.dialog = None
116
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parents: 99
diff changeset
189
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parents:
diff changeset
190 def event(self, e):
349
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parents: 346
diff changeset
191 if self.dialog and self.dialog.running:
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parents: 346
diff changeset
192 if self.dialog.event(e):
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parents: 346
diff changeset
193 return
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parents: 346
diff changeset
194 elif self.dialog:
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parents: 346
diff changeset
195 if self.dialog.do_quit:
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parents: 346
diff changeset
196 self.dialog = None
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parents: 346
diff changeset
197 self.game.gameboard.reset_states()
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diff changeset
198 return GameOver(self.game)
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diff changeset
199 self.dialog=None
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parents: 346
diff changeset
200 return
11
5d58a5b13731 Extremely rudimentary game engine.
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parents:
diff changeset
201 if events_equal(e, START_DAY):
139
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parents: 122
diff changeset
202 if self.game.gameboard.is_game_over():
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parents: 122
diff changeset
203 return GameOver(self.game)
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parents:
diff changeset
204 return DayState(self.game)
320
9bf0e701a36e Switch between 'Finished Day' and 'Fast Forward' modes
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parents: 312
diff changeset
205 elif (e.type is KEYDOWN and e.key == K_d) or \
9bf0e701a36e Switch between 'Finished Day' and 'Fast Forward' modes
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parents: 312
diff changeset
206 events_equal(e, FAST_FORWARD):
233
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Neil Muller <drnlmuller@gmail.com>
parents: 229
diff changeset
207 if self.cycle_time > FAST_ANIM_SPEED:
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parents: 229
diff changeset
208 self.cycle_time = FAST_ANIM_SPEED
222
322e6d3a46e4 Turn 'd' into a fast forward / normal speed toggle at night
Neil Muller <drnlmuller@gmail.com>
parents: 213
diff changeset
209 else:
233
d3d5352f5853 Twek speed loop. Document animation assumptions
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parents: 229
diff changeset
210 self.cycle_time = SLOW_ANIM_SPEED
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parents: 229
diff changeset
211 pygame.time.set_timer(ANIM_ID, self.cycle_time)
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parents: 229
diff changeset
212 pygame.time.set_timer(MOVE_FOX_ID, 4*self.cycle_time)
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parents: 15
diff changeset
213 elif e.type is KEYDOWN and e.key == K_ESCAPE:
349
a36ab7dd0eb9 Fix 'Are You Sure?' dialog to work at night
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parents: 346
diff changeset
214 self.dialog = check_exit()
202
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parents: 183
diff changeset
215 elif e.type is ANIM_ID:
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parents: 183
diff changeset
216 self.game.gameboard.run_animations()
29
2e88c680672c Minimal fox raid logic
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parents: 25
diff changeset
217 elif e.type is MOVE_FOX_ID:
369
25f7d4824250 Disable timers during move_foxes loop to stop events piling up too much
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parents: 349
diff changeset
218 # ensure no timers trigger while we're running
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parents: 349
diff changeset
219 pygame.time.set_timer(ANIM_ID, 0)
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parents: 349
diff changeset
220 pygame.time.set_timer(MOVE_FOX_ID, 0)
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parents: 349
diff changeset
221 # Clear any queued timer events, so we don't full the queue
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parents: 349
diff changeset
222 pygame.event.clear(ANIM_ID)
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parents: 349
diff changeset
223 pygame.event.clear(MOVE_FOX_ID)
237
4a87bfa5cc63 Twiddle animation cycle
Neil Muller <drnlmuller@gmail.com>
parents: 233
diff changeset
224 # Ensure any outstanding animitions get cleaned up
4a87bfa5cc63 Twiddle animation cycle
Neil Muller <drnlmuller@gmail.com>
parents: 233
diff changeset
225 self.game.gameboard.run_animations()
29
2e88c680672c Minimal fox raid logic
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parents: 25
diff changeset
226 self.cycle_count += 1
139
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
227 if self.cycle_count > constants.NIGHT_LENGTH:
29
2e88c680672c Minimal fox raid logic
Neil Muller <drnlmuller@gmail.com>
parents: 25
diff changeset
228 return pygame.event.post(START_DAY)
122
d2b19131d537 Don't continue the night if we're not doing anything anymore
Neil Muller <drnlmuller@gmail.com>
parents: 118
diff changeset
229 if self.game.gameboard.move_foxes():
d2b19131d537 Don't continue the night if we're not doing anything anymore
Neil Muller <drnlmuller@gmail.com>
parents: 118
diff changeset
230 # All foxes are gone/safe, so dawn happens
d2b19131d537 Don't continue the night if we're not doing anything anymore
Neil Muller <drnlmuller@gmail.com>
parents: 118
diff changeset
231 return pygame.event.post(START_DAY)
369
25f7d4824250 Disable timers during move_foxes loop to stop events piling up too much
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parents: 349
diff changeset
232 # Re-enable timers
25f7d4824250 Disable timers during move_foxes loop to stop events piling up too much
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parents: 349
diff changeset
233 pygame.time.set_timer(ANIM_ID, self.cycle_time)
25f7d4824250 Disable timers during move_foxes loop to stop events piling up too much
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parents: 349
diff changeset
234 pygame.time.set_timer(MOVE_FOX_ID, 4*self.cycle_time)
25
6d6ab0c1479d Add placing some chickens and foxes
Neil Muller <drnlmuller@gmail.com>
parents: 15
diff changeset
235 elif e.type is not QUIT:
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
Simon Cross <hodgestar@gmail.com>
parents: 142
diff changeset
236 self.game.main_app.event(e)
25
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
237
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
238 def loop(self):
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parents: 15
diff changeset
239 self.game.gameboard.loop()
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parents: 15
diff changeset
240
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parents: 15
diff changeset
241 def paint(self, screen):
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
Simon Cross <hodgestar@gmail.com>
parents: 142
diff changeset
242 self.game.main_app.paint(screen)
25
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
243 pygame.display.flip()
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Neil Muller <drnlmuller@gmail.com>
parents: 15
diff changeset
244
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
245 def update(self, screen):
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
Simon Cross <hodgestar@gmail.com>
parents: 142
diff changeset
246 self.game.gameboard.update()
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
Simon Cross <hodgestar@gmail.com>
parents: 142
diff changeset
247 update = self.game.main_app.update(screen)
25
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
248 pygame.display.update(update)
6d6ab0c1479d Add placing some chickens and foxes
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parents: 15
diff changeset
249
139
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
250 class GameOver(State):
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parents: 122
diff changeset
251 def init(self):
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parents: 122
diff changeset
252 """Setup everything"""
156
210fc1ea0516 Stop background music whenever state changes.
Simon Cross <hodgestar@gmail.com>
parents: 151
diff changeset
253 sound.stop_background_music()
151
082868bea873 Refactor UI so that only a single gui.App is used. Pass all UI events via main_app. Change Toolbar table to use .td() everywhere. Move toolbar to top.
Simon Cross <hodgestar@gmail.com>
parents: 142
diff changeset
254 self.game.create_game_over()
142
1597081e5a84 Disable timer when game is over
Neil Muller <drnlmuller@gmail.com>
parents: 141
diff changeset
255 pygame.time.set_timer(MOVE_FOX_ID, 0)
202
3074784c93f4 Animation support
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parents: 183
diff changeset
256 pygame.time.set_timer(ANIM_ID, 0)
139
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
257
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
258 def event(self, e):
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parents: 122
diff changeset
259 if e.type is KEYDOWN:
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parents: 122
diff changeset
260 if e.key == K_ESCAPE:
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parents: 122
diff changeset
261 return MainMenuState(self.game)
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parents: 122
diff changeset
262 elif events_equal(e, GO_MAIN_MENU):
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parents: 122
diff changeset
263 return MainMenuState(self.game)
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parents: 122
diff changeset
264 elif e.type is not QUIT:
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parents: 122
diff changeset
265 self.game.main_app.event(e)
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parents: 122
diff changeset
266
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parents: 122
diff changeset
267 def paint(self, screen):
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parents: 122
diff changeset
268 screen.fill((0,0,0))
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parents: 122
diff changeset
269 self.game.main_app.paint(screen)
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parents: 122
diff changeset
270 pygame.display.flip()
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parents: 122
diff changeset
271
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
272 def update(self, screen):
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parents: 122
diff changeset
273 update = self.game.main_app.update(screen)
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parents: 122
diff changeset
274 pygame.display.update(update)
1d73de63bd71 Add basic game over screen
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parents: 122
diff changeset
275
11
5d58a5b13731 Extremely rudimentary game engine.
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parents:
diff changeset
276 # pygame events
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parents:
diff changeset
277
5d58a5b13731 Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
278 def events_equal(e1, e2):
5d58a5b13731 Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
279 """Compare two user events."""
5d58a5b13731 Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
280 return (e1.type is e2.type and e1.name == e2.name)
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Simon Cross <hodgestar@gmail.com>
parents:
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281
5d58a5b13731 Extremely rudimentary game engine.
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parents:
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282 START_DAY = pygame.event.Event(USEREVENT, name="START_DAY")
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Simon Cross <hodgestar@gmail.com>
parents:
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283 START_NIGHT = pygame.event.Event(USEREVENT, name="START_NIGHT")
5d58a5b13731 Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
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284 GO_MAIN_MENU = pygame.event.Event(USEREVENT, name="GO_MAIN_MENU")
179
e2b5262c2b11 Add basic help screen
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parents: 162
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285 GO_HELP_SCREEN = pygame.event.Event(USEREVENT, name="GO_HELP_SCREEN")
320
9bf0e701a36e Switch between 'Finished Day' and 'Fast Forward' modes
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parents: 312
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286 FAST_FORWARD = pygame.event.Event(USEREVENT, name="FAST_FORWARD")
29
2e88c680672c Minimal fox raid logic
Neil Muller <drnlmuller@gmail.com>
parents: 25
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287 MOVE_FOX_ID = USEREVENT + 1
202
3074784c93f4 Animation support
Neil Muller <drnlmuller@gmail.com>
parents: 183
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288 ANIM_ID = USEREVENT + 6
29
2e88c680672c Minimal fox raid logic
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parents: 25
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289 MOVE_FOXES = pygame.event.Event(MOVE_FOX_ID, name="MOVE_FOXES")
11
5d58a5b13731 Extremely rudimentary game engine.
Simon Cross <hodgestar@gmail.com>
parents:
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290 QUIT = pygame.event.Event(QUIT)
233
d3d5352f5853 Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
parents: 229
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291
d3d5352f5853 Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
parents: 229
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292 # Due to the way pgu's loop timing works, these will only get proceesed
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parents: 229
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293 # at intervals of 10ms, so there's no point in them not being multiples of 10
d3d5352f5853 Twek speed loop. Document animation assumptions
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parents: 229
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294 FAST_ANIM_SPEED=20
d3d5352f5853 Twek speed loop. Document animation assumptions
Neil Muller <drnlmuller@gmail.com>
parents: 229
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295 SLOW_ANIM_SPEED=50