package; import dsp.FFT; import flixel.FlxSprite; import flixel.group.FlxGroup; import flixel.group.FlxSpriteGroup.FlxTypedSpriteGroup; import flixel.math.FlxMath; import flixel.math.FlxPoint; import flixel.math.FlxVector; import flixel.system.FlxSound; import flixel.util.FlxColor; import lime.utils.Int16Array; using Lambda; using flixel.util.FlxSpriteUtil; class SpectogramSprite extends FlxTypedSpriteGroup { var sampleRate:Int; var lengthOfShit:Int = 500; public var visType:VISTYPE = UPDATED; public var col:Int = FlxColor.WHITE; public var daHeight:Float = FlxG.height; public var vis:VisShit; public function new(daSound:FlxSound, ?col:FlxColor = FlxColor.WHITE, ?height:Float = 720) { super(); vis = new VisShit(daSound); this.col = col; this.daHeight = height; regenLineShit(); // makeGraphic(200, 200, FlxColor.BLACK); } public function regenLineShit():Void { for (i in 0...lengthOfShit) { var lineShit:FlxSprite = new FlxSprite(100, i / lengthOfShit * daHeight).makeGraphic(1, 1, col); lineShit.active = false; add(lineShit); } } var setBuffer:Bool = false; public var audioData:Int16Array; var numSamples:Int = 0; override function update(elapsed:Float) { switch (visType) { case UPDATED: updateVisulizer(); case FREQUENCIES: updateFFT(); default: } // if visType is static, call updateVisulizer() manually whenever you want to update it! super.update(elapsed); } /** * @param start is the start in milliseconds? */ public function generateSection(start:Float = 0, seconds:Float = 1):Void { checkAndSetBuffer(); // vis.checkAndSetBuffer(); if (setBuffer) { var samplesToGen:Int = Std.int(sampleRate * seconds); var startingSample:Int = Std.int(FlxMath.remapToRange(start, 0, vis.snd.length, 0, numSamples)); var prevLine:FlxPoint = new FlxPoint(); for (i in 0...group.members.length) { var sampleApprox:Int = Std.int(FlxMath.remapToRange(i, 0, group.members.length, startingSample, startingSample + samplesToGen)); var left = audioData[sampleApprox] / 32767; var right = audioData[sampleApprox + 1] / 32767; var swagheight:Int = 200; var balanced = (left + right) / 2; group.members[i].x = prevLine.x; group.members[i].y = prevLine.y; prevLine.x = (balanced * swagheight / 2 + swagheight / 2) + x; prevLine.y = (i / group.members.length * daHeight) + y; var line = FlxVector.get(prevLine.x - group.members[i].x, prevLine.y - group.members[i].y); group.members[i].setGraphicSize(Std.int(Math.max(line.length, 1)), Std.int(1)); group.members[i].angle = line.degrees; } } } public function checkAndSetBuffer() { vis.checkAndSetBuffer(); if (vis.setBuffer) { audioData = vis.audioData; sampleRate = vis.sampleRate; setBuffer = vis.setBuffer; numSamples = Std.int(audioData.length / 2); } } var doAnim:Bool = false; var frameCounter:Int = 0; public function updateFFT() { if (vis.snd != null) { var remappedShit:Int = 0; checkAndSetBuffer(); if (!doAnim) { frameCounter++; if (frameCounter >= 0) { frameCounter = 0; doAnim = true; } } if (setBuffer && doAnim) { doAnim = false; if (vis.snd.playing) remappedShit = Std.int(FlxMath.remapToRange(vis.snd.time, 0, vis.snd.length, 0, numSamples)); else remappedShit = Std.int(FlxMath.remapToRange(Conductor.songPosition, 0, vis.snd.length, 0, numSamples)); var i = remappedShit; var prevLine:FlxPoint = new FlxPoint(); var swagheight:Int = 200; var fftSamples:Array = []; // var array:Array = cast audioData.subarray(remappedShit, remappedShit + lengthOfShit); if (FlxG.keys.justPressed.M) { trace('POOP LOL'); var funnyAud = audioData.subarray(remappedShit, remappedShit + lengthOfShit); for (poop in funnyAud) { // trace("actual audio: " + poop); trace("win: " + poop); } // trace(audioData.subarray(remappedShit, remappedShit + lengthOfShit).buffer); } for (sample in remappedShit...remappedShit + (Std.int((44100 * (1 / 144))))) { var left = audioData[i] / 32767; var right = audioData[i + 1] / 32767; var balanced = (left + right) / 2; i += 2; // var remappedSample:Float = FlxMath.remapToRange(sample, remappedShit, remappedShit + lengthOfShit, 0, lengthOfShit - 1); fftSamples.push(balanced); } var freqShit = vis.funnyFFT(fftSamples); for (i in 0...group.members.length) { // needs to be exponential growth / scaling // still need to optmize the FFT to run better, gets only samples needed? // not every frequency is built the same! // 20hz to 40z is a LOT of subtle low ends, but somethin like 20,000hz to 20,020hz, the difference is NOT the same! var powedShit:Float = FlxMath.remapToRange(i, 0, group.members.length, 0, 4); // a value between 10hz and 100Khz var hzPicker:Float = Math.pow(10, powedShit); // var sampleApprox:Int = Std.int(FlxMath.remapToRange(i, 0, group.members.length, startingSample, startingSample + samplesToGen)); var remappedFreq:Int = Std.int(FlxMath.remapToRange(hzPicker, 0, 10000, 0, freqShit[0].length - 1)); group.members[i].x = prevLine.x; group.members[i].y = prevLine.y; var freqPower:Float = 0; for (pow in 0...freqShit.length) freqPower += freqShit[pow][remappedFreq]; freqPower /= freqShit.length; var freqIDK:Float = FlxMath.remapToRange(freqPower, 0, 0.000005, 0, 50); prevLine.x = (freqIDK * swagheight / 2 + swagheight / 2) + x; prevLine.y = (i / group.members.length * daHeight) + y; var line = FlxVector.get(prevLine.x - group.members[i].x, prevLine.y - group.members[i].y); // dont draw a line until i figure out a nicer way to view da spikes and shit idk lol! // group.members[i].setGraphicSize(Std.int(Math.max(line.length, 1)), Std.int(1)); // group.members[i].angle = line.degrees; } } } } public function updateVisulizer():Void { if (vis.snd != null) { var remappedShit:Int = 0; checkAndSetBuffer(); if (setBuffer) { if (vis.snd.playing) remappedShit = Std.int(FlxMath.remapToRange(vis.snd.time, 0, vis.snd.length, 0, numSamples)); else remappedShit = Std.int(FlxMath.remapToRange(Conductor.songPosition, 0, vis.snd.length, 0, numSamples)); var i = remappedShit; var prevLine:FlxPoint = new FlxPoint(); var swagheight:Int = 200; for (sample in remappedShit...remappedShit + lengthOfShit) { var left = audioData[i] / 32767; var right = audioData[i + 1] / 32767; var balanced = (left + right) / 2; i += 2; var remappedSample:Float = FlxMath.remapToRange(sample, remappedShit, remappedShit + lengthOfShit, 0, lengthOfShit - 1); group.members[Std.int(remappedSample)].x = prevLine.x; group.members[Std.int(remappedSample)].y = prevLine.y; // group.members[0].y = prevLine.y; // FlxSpriteUtil.drawLine(this, prevLine.x, prevLine.y, width * remappedSample, left * height / 2 + height / 2); prevLine.x = (balanced * swagheight / 2 + swagheight / 2) + x; prevLine.y = (Std.int(remappedSample) / lengthOfShit * daHeight) + y; var line = FlxVector.get(prevLine.x - group.members[Std.int(remappedSample)].x, prevLine.y - group.members[Std.int(remappedSample)].y); group.members[Std.int(remappedSample)].setGraphicSize(Std.int(Math.max(line.length, 1)), Std.int(1)); group.members[Std.int(remappedSample)].angle = line.degrees; } } } } } enum VISTYPE { STATIC; UPDATED; FREQUENCIES; }