Preliminary understanding of Panda3D audio and advanced interactive components

function panda3d Tut-Music-Box.py Example ;

Here's the picture , Clicking the button has an effect of opening and closing the box , You can also play different music ;

Panda Divide the audio system into two categories ： Sound effects , music ;

Panda There are three kinds of audio libraries ：openAL,FMOD,Miles;

self.musicBoxSound = base.loadMusic('music/musicbox.mp3'), Load audio file ;

self.lidSfx = base.loadSfx('music/openclose.mp3'), Load sound effects ;

use pview Take a look at the model , Here's the picture ;

 

Look at the code of the interface separately ;

import direct.directbase.DirectStart
from panda3d.core import NodePath,TextNode
from panda3d.core import Vec3,Vec4
from direct.gui.OnscreenText import OnscreenText
from direct.showbase.DirectObject import DirectObject
from direct.interval.SoundInterval import SoundInterval
from direct.gui.DirectSlider import DirectSlider
from direct.gui.DirectButton import DirectButton
from direct.interval.MetaInterval import Sequence,Parallel
from direct.interval.LerpInterval import LerpFunc
import sys

class World(DirectObject):
  def __init__(self):

    self.slider = DirectSlider(pos = Vec3(0,0,.7), value = .50,
                    command = None)

    self.button = DirectButton(pos = Vec3(.7,0,.7), text = "Open Box",
                   scale = .1, pad = (.5, .5),
                   rolloverSound = None, clickSound = None,
                   command = None)

w = World()
run()

Run the following ; Buttons and sliders are used DirectXXX Class ; This is part of the advanced interaction component provided by the system ; 

 

Take a look at the code related to the model alone ,

import direct.directbase.DirectStart
from panda3d.core import NodePath,TextNode
from panda3d.core import Vec3,Vec4
from direct.gui.OnscreenText import OnscreenText
from direct.showbase.DirectObject import DirectObject
from direct.interval.SoundInterval import SoundInterval
from direct.gui.DirectSlider import DirectSlider
from direct.gui.DirectButton import DirectButton
from direct.interval.MetaInterval import Sequence,Parallel
from direct.interval.LerpInterval import LerpFunc
import sys

class World(DirectObject):
  def __init__(self):

    self.musicBox=loader.loadModel('models/MusicBox')
    self.musicBox.setPos(0, 60, -10)
    self.musicBox.reparentTo(render)

    #Finding pieces of the model
    self.Lid   = self.musicBox.find('**/lid')
    self.Panda = self.musicBox.find('**/turningthing')  

    self.HingeNode = self.musicBox.find('**/box').attachNewNode('nHingeNode')
    self.HingeNode.setPos(.8659,6.5,5.4)
    #WRT - ie with respect to. Reparents the object without changing
    #its position, size, or orientation
    self.Lid.wrtReparentTo(self.HingeNode)
    self.HingeNode.setHpr(0,90,0)

w = World()
run()

Run the following , Only one box can be seen ; 

 

      In terms of code ; Is to load the model , Then look for different parts of the model , Set to these nodes ,self.Lid,self.Panda,self.HingeNode ;

    I don't know how to open and close the box , Go on next time ;