Funkin/source/ABotVis.hx

import dsp.FFT;
import flixel.FlxSprite;
import flixel.addons.plugin.taskManager.FlxTask;
import flixel.graphics.frames.FlxAtlasFrames;
import flixel.group.FlxSpriteGroup.FlxTypedSpriteGroup;
import flixel.math.FlxMath;
import flixel.system.FlxSound;
import ui.PreferencesMenu.CheckboxThingie;

using Lambda;

class ABotVis extends FlxTypedSpriteGroup<FlxSprite>
{
	public var vis:VisShit;

	var volumes:Array<Float> = [];

	public function new(snd:FlxSound)
	{
		super();

		vis = new VisShit(snd);
		// vis.snd = snd;

		var visFrms:FlxAtlasFrames = Paths.getSparrowAtlas('aBotViz');

		for (lol in 1...8)
		{
			// pushes initial value
			volumes.push(0.0);

			var viz:FlxSprite = new FlxSprite(50 * lol, 0);
			viz.frames = visFrms;
			add(viz);

			var visStr = 'VIZ';
			if (lol == 5)
				visStr = 'viz'; // lol makes it lowercase, accomodates for art that I dont wanna rename!

			viz.animation.addByPrefix('VIZ', visStr + lol, 0);
			viz.animation.play('VIZ', false, false, -1);
		}
	}

	override function update(elapsed:Float)
	{
		// updateViz();

		updateFFT();

		super.update(elapsed);
	}

	function updateFFT()
	{
		if (vis.snd != null)
		{
			vis.checkAndSetBuffer();

			if (vis.setBuffer)
			{
				var remappedShit:Int = 0;

				if (vis.snd.playing)
					remappedShit = Std.int(FlxMath.remapToRange(vis.snd.time, 0, vis.snd.length, 0, vis.numSamples));
				else
					remappedShit = Std.int(FlxMath.remapToRange(Conductor.songPosition, 0, vis.snd.length, 0, vis.numSamples));

				var fftSamples:Array<Float> = [];

				var swagBucks = remappedShit;

				for (i in remappedShit...remappedShit + (Std.int((44100 * (1 / 144)))))
				{
					var left = vis.audioData[swagBucks] / 32767;
					var right = vis.audioData[swagBucks + 1] / 32767;

					var balanced = (left + right) / 2;

					swagBucks += 2;

					fftSamples.push(balanced);
				}

				var freqShit = vis.funnyFFT(fftSamples);

				for (i in 0...group.members.length)
				{
					var getSliceShit = function(s:Int)
					{
						var powShit = FlxMath.remapToRange(s, 0, group.members.length, 0, CoolUtil.coolBaseLog(10, freqShit[0].length));
						return Math.round(Math.pow(10, powShit));
					};

					// var powShit:Float = getSliceShit(i);
					var hzSliced:Int = getSliceShit(i);

					var sliceLength:Int = Std.int(freqShit[0].length / group.members.length);

					var volSlice = freqShit[0].slice(hzSliced, getSliceShit(i + 1));

					var avgVel:Float = 0;

					for (slice in volSlice)
					{
						avgVel += slice;
					}

					avgVel /= volSlice.length;

					avgVel *= 10000000;

					volumes[i] += avgVel - (FlxG.elapsed * (volumes[i] * 50));

					var animFrame:Int = Std.int(volumes[i]);

					animFrame = Math.floor(Math.min(5, animFrame));
					animFrame = Math.floor(Math.max(0, animFrame));

					animFrame = Std.int(Math.abs(animFrame - 5)); // shitty dumbass flip, cuz dave got da shit backwards lol!

					group.members[i].animation.curAnim.curFrame = animFrame;
					if (FlxG.keys.justPressed.U)
					{
						trace(avgVel);
						trace(group.members[i].animation.curAnim.curFrame);
					}
				}

				// group.members[0].animation.curAnim.curFrame =
			}
		}
	}

	public function updateViz()
	{
		if (vis.snd != null)
		{
			var remappedShit:Int = 0;
			vis.checkAndSetBuffer();

			if (vis.setBuffer)
			{
				// var startingSample:Int = Std.int(FlxMath.remapToRange)

				if (vis.snd.playing)
					remappedShit = Std.int(FlxMath.remapToRange(vis.snd.time, 0, vis.snd.length, 0, vis.numSamples));

				for (i in 0...group.members.length)
				{
					var sampleApprox:Int = Std.int(FlxMath.remapToRange(i, 0, group.members.length, remappedShit, remappedShit + 500));

					var left = vis.audioData[sampleApprox] / 32767;

					var animFrame:Int = Std.int(FlxMath.remapToRange(left, -1, 1, 0, 6));

					group.members[i].animation.curAnim.curFrame = animFrame;
				}
			}
		}
	}
}