98 lines
2.3 KiB
Haxe
98 lines
2.3 KiB
Haxe
package;
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import flixel.FlxSprite;
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import flixel.group.FlxGroup;
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import flixel.group.FlxSpriteGroup.FlxTypedSpriteGroup;
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import flixel.math.FlxMath;
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import flixel.math.FlxPoint;
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import flixel.system.FlxSound;
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import flixel.util.FlxColor;
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import lime.utils.Int16Array;
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using flixel.util.FlxSpriteUtil;
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class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
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{
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var lengthOfShit:Int = 500;
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var daSound:FlxSound;
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public function new(daSound:FlxSound, ?col:FlxColor = FlxColor.WHITE)
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{
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super();
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this.daSound = daSound;
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for (i in 0...lengthOfShit)
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{
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var lineShit:FlxSprite = new FlxSprite(100, i / lengthOfShit * FlxG.height).makeGraphic(1, 1, col);
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lineShit.active = false;
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add(lineShit);
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}
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// makeGraphic(200, 200, FlxColor.BLACK);
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}
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var setBuffer:Bool = false;
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var audioData:Int16Array;
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var numSamples:Int = 0;
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override function update(elapsed:Float)
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{
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if (daSound != null)
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{
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var remappedShit:Int = 0;
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if (daSound.playing)
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{
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if (!setBuffer)
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{
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@:privateAccess
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audioData = cast daSound._channel.__source.buffer.data; // jank and hacky lol!
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setBuffer = true;
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numSamples = Std.int(audioData.length / 2);
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}
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else
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{
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remappedShit = Std.int(FlxMath.remapToRange(daSound.time, 0, daSound.length, 0, numSamples));
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}
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}
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else
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{
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if (setBuffer)
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remappedShit = Std.int(FlxMath.remapToRange(Conductor.songPosition, 0, daSound.length, 0, numSamples));
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}
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if (setBuffer)
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{
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var i = remappedShit;
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var prevLine:FlxPoint = new FlxPoint();
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var swagheight:Int = 200;
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for (sample in remappedShit...remappedShit + lengthOfShit)
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{
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var left = audioData[i] / 32767;
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var right = audioData[i + 1] / 32767;
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var balanced = (left + right) / 2;
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i += 2;
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var remappedSample:Float = FlxMath.remapToRange(sample, remappedShit, remappedShit + lengthOfShit, 0, lengthOfShit - 1);
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group.members[Std.int(remappedSample)].x = prevLine.x;
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// group.members[0].y = prevLine.y;
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// FlxSpriteUtil.drawLine(this, prevLine.x, prevLine.y, width * remappedSample, left * height / 2 + height / 2);
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prevLine.x = balanced * swagheight / 2 + swagheight / 2;
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// width * (remappedSample / 255);
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// prevLine.y = left * swagheight / 2 + swagheight / 2;
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}
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}
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}
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super.update(elapsed);
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}
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}
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