97 lines
2.6 KiB
JavaScript
Executable File
97 lines
2.6 KiB
JavaScript
Executable File
// Audio functions (eg "pick a random sound from a list", "build a playlist") will go here.
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// In the meantime, a quick run-down of the basic commands:
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// Save the specified audio file to handle "s".
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// s = new Sound( "audio/music/menu_track.ogg" );
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// Play the sound stored at handle "s" one time (it'll be automatically freed when the playback ends):
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// s.play();
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// Play the sound stored at handle "s" continuously:
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// s.loop();
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// Close "s" and free it from memory (use in conjunction with loop()):
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// s.free();
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// Adjust the gain (volume) of a sound (floating point range between 0 (silent) and 1 (max volume)).
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// s.SetGain(value);
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// ====================================================================
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function newRandomSound(soundType, soundSubType, soundPrePath)
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{
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// Return a random audio file by category, to be assigned to a handle.
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switch (soundType)
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{
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case "music":
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randomSoundPath = "audio/music/"
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break;
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case "voice":
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randomSoundPath = soundPrePath + "/";
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break;
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default:
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break;
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}
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// Get names of sounds (attack, command, select, hit, pain).
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// or
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// Get names of "peace", "menu" (theme) and "battle" tracks.
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soundArray = buildFileList(randomSoundPath, "*" + soundSubType + "*", false);
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// Get a random number within the sound's range.
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randomSound = getRandom(0, soundArray.length-1);
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// Set name of track.
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randomFileName = soundArray[randomSound];
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// Build path to random audio file.
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randomSoundPath = randomFileName;
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console.write("Playing " + randomSoundPath + " ...");
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return new Sound(randomSoundPath);
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}
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// ====================================================================
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function FadeOut (soundHandle, Rate)
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{
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// Adjust the gain of a sound until it is zero.
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for (fadeLoop = 1; fadeLoop > 0; fadeLoop = fadeLoop - Rate)
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{
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soundHandle.setGain(fadeLoop);
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}
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return true;
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}
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// ====================================================================
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function FadeIn (soundHandle, Gain, Rate)
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{
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// Adjust the gain of a sound from zero up to the given value.
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for (fadeLoop = 0; fadeLoop < Gain; fadeLoop = fadeLoop + Rate)
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{
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soundHandle.setGain(fadeLoop);
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}
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return true;
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}
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// ====================================================================
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function CrossFade (outHandle, inHandle, Rate)
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{
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// Accepts two sound handles. Fades out the first and fades in the second at the specified rate.
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// Note that it plays the in and frees the out while it's at it.
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FadeOut(outHandle, Rate);
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inHandle.play();
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FadeIn(inHandle, 1, Rate);
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outHandle.free();
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return true;
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}
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// ====================================================================
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