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comments on getSoundIndex

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Eric Rosenbaum 2017-01-30 10:56:50 -05:00
parent 9d8819ddc7
commit dd30e07052
1 changed files with 5 additions and 0 deletions
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5
src/blocks/scratch3_sound.js
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@ -48,17 +48,22 @@ Scratch3SoundBlocks.prototype.playSoundAndWait = function (args, util) {
}; };
Scratch3SoundBlocks.prototype._getSoundIndex = function (soundName, util) { Scratch3SoundBlocks.prototype._getSoundIndex = function (soundName, util) {
// if the sprite has no sounds, return 0
if (util.target.sprite.sounds.length === 0) { if (util.target.sprite.sounds.length === 0) {
return 0; return 0;
} }
var index; var index;
// if the sound name is a number, wrapclamp it to a sound index
if (Number(soundName)) { if (Number(soundName)) {
soundName = Number(soundName); soundName = Number(soundName);
var len = util.target.sprite.sounds.length; var len = util.target.sprite.sounds.length;
index = MathUtil.wrapClamp(soundName, 1, len) - 1; index = MathUtil.wrapClamp(soundName, 1, len) - 1;
} else { } else {
// else get the index for that sound of that name
index = util.target.getSoundIndexByName(soundName); index = util.target.getSoundIndexByName(soundName);
// use zero if there is no sound by that name
// to match scratch 2.0 behavior, we should instead play no sound in this case
if (index === -1) { if (index === -1) {
index = 0; index = 0;
} }