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annotate gamelib/main.py @ 48:a2980cc9a060

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Factor out some constants
author Neil Muller <drnlmuller@gmail.com>
date Mon, 07 May 2012 21:23:54 +0200
parents d35a3762edda
children ac637e84f8f8
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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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12 from gamelib.gui_base import Window
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13 from gamelib.gui import BigButton
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14 from gamelib.constants import WIDTH, HEIGHT, SCREEN, FPS
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17 pygame.init()
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18
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19 GAME_IS_RUNNING = True
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20
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21 WINDOW_STACK = []
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22
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23 # input variables
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24 MOUSE_DOWN = False
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26
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27 class ExitGameButton(BigButton):
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28
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29 def __init__(self):
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30 super(ExitGameButton, self).__init__(((WIDTH - 128), 10), 'Exit')
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31
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32 def on_click(self):
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33 WINDOW_STACK.pop()
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35
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36 class GameWindow(Window):
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37 """Main window for the game"""
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38
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39 def __init__(self, screen):
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40 super(GameWindow, self).__init__(screen)
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41 exit = ExitGameButton()
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42 self.add_child(exit)
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45 class StartButton(BigButton):
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46
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47 def __init__(self, screen):
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48 super(StartButton, self).__init__(((WIDTH - 128) / 2, HEIGHT / 2),
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49 '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__(((WIDTH - 128) / 2,
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61 HEIGHT / 2 + 100), 'Quit')
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62
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63 def on_click(self):
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64 pygame.event.post(pygame.event.Event(pygame.QUIT))
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66
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67 def main():
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68 clock = Clock()
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69 screen = pygame.display.set_mode(SCREEN)
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70 window = Window(screen)
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71 window.background_colour = (0, 0, 0)
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72 button1 = StartButton(screen)
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73 window.add_child(button1)
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74 button2 = QuitButton()
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75 window.add_child(button2)
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76 WINDOW_STACK.append(window)
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77 while GAME_IS_RUNNING:
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78 process_input()
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79 draw(screen)
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80 clock.tick(FPS)
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81
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82
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83 def draw(screen):
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84 for view in WINDOW_STACK:
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85 view.draw(screen)
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86 pygame.display.flip()
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87
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88
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89 def process_input():
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90 global MOUSE_DOWN
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91 global GAME_IS_RUNNING
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92 for event in pygame.event.get():
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93 if MOUSE_DOWN:
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94 if event.type == MOUSEBUTTONUP:
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95 MOUSE_DOWN = False
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96 WINDOW_STACK[-1].on_mouse_up(event.pos)
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97 elif event.type == MOUSEMOTION:
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98 WINDOW_STACK[-1].on_mouse_move(event.pos)
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99 elif not MOUSE_DOWN and event.type == MOUSEBUTTONDOWN:
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100 MOUSE_DOWN = True
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101 WINDOW_STACK[-1].on_mouse_down(event.pos)
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102 elif event.type == QUIT:
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103 GAME_IS_RUNNING = False