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comparison gamelib/main.py @ 52:1d3d20bdc8b9

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Move engine stuff into it's own file
author Neil Muller <drnlmuller@gmail.com>
date Mon, 07 May 2012 21:55:55 +0200
parents ac637e84f8f8
children 655a6912e0ae
comparison
equal deleted inserted replaced
51:ac637e84f8f8 52:1d3d20bdc8b9
4 4
5 Feel free to put all your game code here, or in other modules in this "gamelib" 5 Feel free to put all your game code here, or in other modules in this "gamelib"
6 package. 6 package.
7 ''' 7 '''
8 import pygame 8 import pygame
9 from pygame.locals import (MOUSEBUTTONDOWN, MOUSEBUTTONUP, MOUSEMOTION, QUIT,
10 USEREVENT)
11 from pygame.time import Clock
12 9
13 from gamelib.gui_base import Window 10 from gamelib.gui_base import Window
14 from gamelib.gui import BigButton 11 from gamelib.gui import BigButton
15 from gamelib.constants import WIDTH, HEIGHT, SCREEN, FPS 12 from gamelib.engine import Engine, AddWindow, PopWindow
13
14 from gamelib.constants import WIDTH, HEIGHT, SCREEN
16 15
17 16
18 pygame.init() 17 pygame.init()
19
20
21 class UserEvent(object):
22 # Handy event wrapper
23
24 TYPE = "unknown"
25
26 @classmethod
27 def post(cls, **kw):
28 event = pygame.event.Event(USEREVENT, utype=cls.TYPE, **kw)
29 pygame.event.post(event)
30
31 @classmethod
32 def matches(cls, event):
33 return event.type == USEREVENT and event.utype == cls.TYPE
34
35
36 class AddWindow(UserEvent):
37 # Add the given window to the top of the window stack
38
39 TYPE = "ADD_WINDOW"
40
41 @classmethod
42 def post(cls, window):
43 super(AddWindow, cls).post(window=window)
44
45
46 class PopWindow(UserEvent):
47 # Pop a window off the top of the window stack
48
49 TYPE = "POP_WINDOW"
50
51 @classmethod
52 def post(cls):
53 super(PopWindow, cls).post()
54 18
55 19
56 class ExitGameButton(BigButton): 20 class ExitGameButton(BigButton):
57 21
58 def __init__(self): 22 def __init__(self):
107 def main(): 71 def main():
108 screen = pygame.display.set_mode(SCREEN) 72 screen = pygame.display.set_mode(SCREEN)
109 engine = Engine(screen) 73 engine = Engine(screen)
110 window = MainMenu(screen) 74 window = MainMenu(screen)
111 engine.run(window) 75 engine.run(window)
112
113
114 class Engine(object):
115
116 def __init__(self, screen):
117 self._window_stack = []
118 self._running = False
119 self._mouse_down = False
120 self._screen = screen
121
122 def run(self, window):
123 clock = Clock()
124 self._window_stack.append(window)
125 self._running = True
126 self._mouse_down = False
127 while self._running:
128 self.process_input()
129 self.draw()
130 clock.tick(FPS)
131
132 def draw(self):
133 for view in self._window_stack:
134 view.draw(self._screen)
135 pygame.display.flip()
136
137 def process_input(self):
138 for event in pygame.event.get():
139 if self._mouse_down:
140 if event.type == MOUSEBUTTONUP:
141 self._mouse_down = False
142 self._window_stack[-1].on_mouse_up(event.pos)
143 elif event.type == MOUSEMOTION:
144 self._window_stack[-1].on_mouse_move(event.pos)
145 elif not self._mouse_down and event.type == MOUSEBUTTONDOWN:
146 self._mouse_down = True
147 self._window_stack[-1].on_mouse_down(event.pos)
148 elif event.type == QUIT:
149 self._running = False
150 elif AddWindow.matches(event):
151 self._window_stack.append(event.window)
152 elif PopWindow.matches(event):
153 self._window_stack.pop()