Add sound when placing stones.

[qcgm1978]

In the draw_stone method, play the sound after draw_last_move. This is more intuitive. For example, you can make these changes:

pachi = '../external/sound/0.mp3'
const pachi_audio = new Audio(pachi);
function draw_stone(h, xy, radius, draw_last_p, draw_loss_p, g) {
    ...
    if (draw_last_p && h.last && h.move_count > R.init_len) { 
        draw_last_move(h, xy, radius, g)
        g.canvas.id == 'goban_overlay2' &&
            pachi_audio.play()
    ...

[kaorahi]

Would you try this?
https://github.com/kaorahi/lizgoban/tree/issue96_sound

(Usage)
Prepare sound files and put them into external/ directory. Then add "sound_file" into config.json like this.

{
    ...
    "sound_file" : {
        "stone": ["stone1.wav", "stone2.wav", "stone3.wav"],
        "capture": ["capture.wav"],
        "pass": ["pass.wav"]
    },
    ...
}

It may be a fun idea to adjust the sound based on the game situation (settled/unsettled, etc.), though I'm not planning to implement it soon.

[qcgm1978]

Wonderful. I tried it and copied audio files to external folder. All works perfectly. But I want to know what's the meaning there're multi files as stone's value. Additionally, I believe that default sound files should be provided, even though users can customize their settings.

[kaorahi]

If you specify two or more sound files, one of them will play randomly each time. I believe this approach is popular for creating a natural sound effect. For the default sound, do you know of any files with explicit licensing for copying and distribution?

[qcgm1978]

Sabaki is licensed under the MIT license. I don't know whether it is appropriate.