Mercurial > mamba

annotate mamba/engine.py @ 64:fbb5cc655b47

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
More screen size fiddling hackery
author Neil Muller <drnlmuller@gmail.com>
date Sun, 11 Sep 2011 17:23:42 +0200
parents 40be38f4427c
children 2aa652b92449
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
12
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
1 """Game engine and top-level game loop."""
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
2
38
047273a63054 Main menu says hello
Stefano Rivera <stefano@rivera.za.net>
parents: 25
diff changeset
3 from mamba.constants import SCREEN
24
30d4f3e62bcf Refactor widgets *again*, add container to Habitat
Stefano Rivera <stefano@rivera.za.net>
parents: 19
diff changeset
4 from mamba.widgets.base import Container
38
047273a63054 Main menu says hello
Stefano Rivera <stefano@rivera.za.net>
parents: 25
diff changeset
5
12
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
6 import pygame.event
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
7 import pygame.display
38
047273a63054 Main menu says hello
Stefano Rivera <stefano@rivera.za.net>
parents: 25
diff changeset
8 import pygame
13
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
9 from pygame.locals import QUIT, USEREVENT
12
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
10
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
11
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
12 class Engine(object):
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
13 def __init__(self):
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
14 self._habitat = None
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
16 def set_habitat(self, habitat):
51
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
17 if self._habitat is not None:
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
18 self._habitat.on_exit()
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
19 self._habitat = habitat
51
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
20 if self._habitat is not None:
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
21 self._habitat.on_enter()
12
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
22
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
23 def run(self):
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
24 """Game loop."""
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
25 get_events = pygame.event.get
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
26 flip = pygame.display.flip
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
27 while True:
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
28 events = get_events()
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
29 for ev in events:
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
30 if ev.type is QUIT:
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
31 return
61
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
32 elif NewHabitatEvent.matches(ev):
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
33 self.set_habitat(ev.habitat)
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
34 else:
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
35 self._habitat.dispatch(ev)
64
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
36 surface = pygame.display.get_surface()
19
6d195a3a4557 Somewhere for levels to live.
Simon Cross <hodgestar@gmail.com>
parents: 15
diff changeset
37 self._habitat.draw(surface)
12
0196455fa432 Minimal event loop.
Simon Cross <hodgestar@gmail.com>
parents: 6
diff changeset
38 flip()
13
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
39
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
40
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
41 class Habitat(object):
24
30d4f3e62bcf Refactor widgets *again*, add container to Habitat
Stefano Rivera <stefano@rivera.za.net>
parents: 19
diff changeset
42
30d4f3e62bcf Refactor widgets *again*, add container to Habitat
Stefano Rivera <stefano@rivera.za.net>
parents: 19
diff changeset
43 def __init__(self):
64
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
44 self.surface = None
59
3cc917814579 Container subclasses Widget
Stefano Rivera <stefano@rivera.za.net>
parents: 51
diff changeset
45 self.container = Container(pygame.Rect((0, 0), SCREEN))
24
30d4f3e62bcf Refactor widgets *again*, add container to Habitat
Stefano Rivera <stefano@rivera.za.net>
parents: 19
diff changeset
46
51
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
47 def on_enter(self):
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
48 """Called when this becomes the current habitat."""
64
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
49 # Create the surface here as flipping between editor and
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
50 # other things kills pygame.display
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
51 self.surface = pygame.Surface(SCREEN)
51
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
52
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
53 def on_exit(self):
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
54 """Called when this stops being the current habitat."""
64
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
55 self.surface = None
51
e5f36843f7cd Add on_enter and on_exit methods to habitats.
Simon Cross <hodgestar@gmail.com>
parents: 38
diff changeset
56
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
57 def dispatch(self, ev):
24
30d4f3e62bcf Refactor widgets *again*, add container to Habitat
Stefano Rivera <stefano@rivera.za.net>
parents: 19
diff changeset
58 self.container.event(ev)
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
59
19
6d195a3a4557 Somewhere for levels to live.
Simon Cross <hodgestar@gmail.com>
parents: 15
diff changeset
60 def draw(self, surface):
64
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
61 if self.surface:
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
62 self.surface.fill(pygame.Color('black'))
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
63 self.container.draw(self.surface)
fbb5cc655b47 More screen size fiddling hackery
Neil Muller <drnlmuller@gmail.com>
parents: 62
diff changeset
64 surface.blit(self.surface, self.surface.get_rect())
15
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
65
ad2bcbf492bf Hook up top-level habitat support.
Simon Cross <hodgestar@gmail.com>
parents: 13
diff changeset
66
13
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
67 class UserEvent(object):
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
68
61
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
69 TYPE = "UNKNOWN"
13
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
70
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
71 @classmethod
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
72 def post(cls, **kws):
61
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
73 ev = pygame.event.Event(USEREVENT, utype=cls.TYPE, **kws)
13
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
74 pygame.event.post(ev)
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
75
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
76 @classmethod
f5846a46e9c5 Add base class for user events.
Simon Cross <hodgestar@gmail.com>
parents: 12
diff changeset
77 def matches(cls, ev):
61
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
78 return ev.type is USEREVENT and ev.utype == cls.TYPE
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
79
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
80
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
81 class NewHabitatEvent(UserEvent):
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
82
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
83 TYPE = "NEW_HABITAT"
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
84
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
85 @classmethod
fc4b7db1d832 Habitat switching.
Simon Cross <hodgestar@gmail.com>
parents: 59
diff changeset
86 def post(cls, habitat):
62
40be38f4427c Bug squashing.
Simon Cross <hodgestar@gmail.com>
parents: 61
diff changeset
87 super(NewHabitatEvent, cls).post(habitat=habitat)