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annotate gamelib/main.py @ 44:d35a3762edda

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Idiomatic
author Neil Muller <drnlmuller@gmail.com>
date Mon, 07 May 2012 16:53:18 +0200
parents 2bdac178ec6f
children a2980cc9a060
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1 '''Game main module.
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2
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3 Contains the entry point used by the run_game.py script.
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4
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5 Feel free to put all your game code here, or in other modules in this "gamelib"
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6 package.
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7 '''
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8 import pygame
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9 from pygame.locals import MOUSEBUTTONDOWN, MOUSEBUTTONUP, MOUSEMOTION, QUIT
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10 from pygame.time import Clock
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11
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12 from gamelib.gui_base import Window
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13 from gamelib.gui import BigButton
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16 pygame.init()
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17
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18 FPS = 30
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19
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20 GAME_IS_RUNNING = True
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21
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22 WINDOW_STACK = []
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23
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24 # input variables
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25 MOUSE_DOWN = False
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28 class ExitGameButton(BigButton):
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29
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30 def __init__(self):
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31 super(ExitGameButton, self).__init__(((800 - 128), 10), 'Exit')
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32
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33 def on_click(self):
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34 WINDOW_STACK.pop()
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36
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37 class GameWindow(Window):
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38 """Main window for the game"""
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39
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40 def __init__(self, screen):
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41 super(GameWindow, self).__init__(screen)
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42 exit = ExitGameButton()
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43 self.add_child(exit)
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45
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46 class StartButton(BigButton):
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47
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48 def __init__(self, screen):
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49 super(StartButton, self).__init__(((800 - 128) / 2, 200), 'Start')
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50 self.screen = screen
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51
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52 def on_click(self):
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53 game_window = GameWindow(self.screen)
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54 WINDOW_STACK.append(game_window)
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55
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56
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57 class QuitButton(BigButton):
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58
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59 def __init__(self):
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60 super(QuitButton, self).__init__(((800 - 128) / 2, 300), 'Quit')
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61
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62 def on_click(self):
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63 pygame.event.post(pygame.event.Event(pygame.QUIT))
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65
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66 def main():
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67 clock = Clock()
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68 screen = pygame.display.set_mode((800, 600))
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69 window = Window(screen)
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70 window.background_colour = (0, 0, 0)
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71 button1 = StartButton(screen)
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72 window.add_child(button1)
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73 button2 = QuitButton()
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74 window.add_child(button2)
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75 WINDOW_STACK.append(window)
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76 while GAME_IS_RUNNING:
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77 process_input()
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78 draw(screen)
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79 clock.tick(FPS)
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81
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82 def draw(screen):
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83 for view in WINDOW_STACK:
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84 view.draw(screen)
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85 pygame.display.flip()
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87
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88 def process_input():
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89 global MOUSE_DOWN
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90 global GAME_IS_RUNNING
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91 for event in pygame.event.get():
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92 if MOUSE_DOWN:
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93 if event.type == MOUSEBUTTONUP:
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94 MOUSE_DOWN = False
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95 WINDOW_STACK[-1].on_mouse_up(event.pos)
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96 elif event.type == MOUSEMOTION:
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97 WINDOW_STACK[-1].on_mouse_move(event.pos)
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98 elif not MOUSE_DOWN and event.type == MOUSEBUTTONDOWN:
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99 MOUSE_DOWN = True
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100 WINDOW_STACK[-1].on_mouse_down(event.pos)
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101 elif event.type == QUIT:
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102 GAME_IS_RUNNING = False