CoCalc Public Fileswww / talks / 2006-05-09-sage-digipen / tutorial / sound-sdl_mixer-1.py
Author: William A. Stein
1# Soya 3D tutorial
2# Copyright (C) 2005 Jean-Baptiste LAMY
3#
4# This program is free software; you can redistribute it and/or modify
6# the Free Software Foundation; either version 2 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write to the Free Software
16# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17
18
19# sound-sdl_mixer-1: pseudo-3D sound with SDL_mixer
20
21# You need to install PySDL_Mixer (http://gna.org/projects/pysdlmixer/)
22#
23# You may need to stop artsd daemon too (typically for KDE user)
24#
25# The tuto draws a moving cube that play a 3D sound.
26# Notice that the two sound modules soya.openal4soya and soya.sdl_mixer4soya have the
27# same interface.
28
29import os, os.path, sys
30
31import soya, soya.cube as cube
32
33soya.init()
34
35# Define the data directories ; sounds are searched in sounds/ subdirectory.
36
37soya.path.append(os.path.join(os.path.dirname(sys.argv[0]), "data"))
38
39scene = soya.World()
40
41camera = soya.Camera(scene)
42camera.y = 0.3
43camera.z = 2.0
44
45soya.set_root_widget(camera)
46
47
48import soya.sdl_mixer4soya as sound
49
50# Inits the sound module, and pass to it the location of the listener
51# (usually the camera).
52
53sound.init(camera)
54
55# Create a cube.
56
57import math
58class MovingVolume(soya.Volume):
59  def __init__(self, parent, shape):
60    soya.Volume.__init__(self, parent, shape)
61    self.angle = 3.0
62
64    self.angle += 0.04 * proportion
65    self.set_xyz(100.0 * math.cos(self.angle), 0.0, 100.0 * math.sin(self.angle))
66
67cube = MovingVolume(scene, cube.Cube().shapify())
68
69# The cube continuously play a sound
70#
71# The parameters for play are:
72#  - the sound file name (supported format: Wave, Ogg Vorbis, MP3,...)
73#  - the sound position
74#  - the sound speed (a Vector, IGNORED (it is present for compatibility with soya.openal4soya))
75#    the speed is automatically computed if omitted
76#    the speed is not used by SDL_mixer, since it doesn't provide Doppler effect.
77#  - 1 for looping (0 else)
78#  - 1 to load the sound asynchronously (if not already cached)
79
80sound.play("test.wav", cube, None, 1)
81
82
83light = soya.Light(scene)
84light.set_xyz(1.5, 2.0, 2.2)
85
86soya.Idler(scene).idle()
87