forked from: flash on 2016-5-9

/**
 * Copyright s8t1h12akj ( http://wonderfl.net/user/s8t1h12akj )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/4nzz
 */

// forked from piratpendop's flash on 2016-5-9
////////////////////////////////////////////////////////////////////////////////

// SoundVisualizer [mini] SoundMixer

//

// [AS3.0] MiniVisualizerクラスだ！ (2)

// http://www.project-nya.jp/modules/weblog/details.php?blog_id=1344

////////////////////////////////////////////////////////////////////////////////



package {



    import flash.display.Sprite;

    import flash.events.Event;

    import flash.events.MouseEvent;



    [SWF(backgroundColor="#000000", width="465", height="465", frameRate="30")]



    public class Main extends Sprite {

        private var visualizer:SoundVisualizer;

        private var se:SoundEffect;

        private static var bgmPath:String = "http://kouetu.sakura.ne.jp.mp3tam-h11.mp3";

        private var playBtn:Btn;

        private var stopBtn:Btn;



        public function Main() {

            //Wonderfl.capture_delay(1);

            init();

        }



        private function init():void {

            graphics.beginFill(0x000000);

            graphics.drawRect(0, 0, 465, 465);

            graphics.endFill();

            //

            visualizer = new SoundVisualizer(16, 0xFFFFFF);

            addChild(visualizer);

            visualizer.x = 232;

            visualizer.y = 232;

            visualizer.alpha = 0.4;

            //

            se = new SoundEffect();

            se.addEventListener(Event.COMPLETE, complete, false, 0, true);

            se.load(bgmPath);

            //

            playBtn = new Btn();

            addChild(playBtn);

            playBtn.x = 232;

            playBtn.y = 400;

            playBtn.init({label: "play", type: 2});

            playBtn.addEventListener(MouseEvent.CLICK, play, false, 0, true);

            playBtn.enabled = false;

            stopBtn = new Btn();

            addChild(stopBtn);

            stopBtn.x = 232;

            stopBtn.y = 400;

            stopBtn.init({label: "stop", type: 2});

            stopBtn.addEventListener(MouseEvent.CLICK, stop, false, 0, true);

            stopBtn.visible = false;

        }

        private function complete(evt:Event):void {

            se.removeEventListener(Event.COMPLETE, complete);

            visualizer.alpha = 1;

            playBtn.enabled = true;

        }

        private function play(evt:MouseEvent):void {

            playBtn.visible = false;

            stopBtn.visible = true;

            //

            visualizer.start();

            se.play(0.5, true);

        }

        private function stop(evt:MouseEvent):void {

            playBtn.visible = true;

            stopBtn.visible = false;

            //

            visualizer.stop();

            se.stop();

        }



    }



}





//////////////////////////////////////////////////

// SoundVisualizerクラス

//////////////////////////////////////////////////



import flash.display.Sprite;

import flash.utils.Timer;

import flash.events.TimerEvent;

import flash.media.SoundMixer;

import flash.utils.ByteArray;



class SoundVisualizer extends Sprite {

    private var max:uint;

    private var color:uint;

    private static var bw:uint = 4;

    private static var bh:uint = 16;

    private static var xoffset:uint = 1;

    private static var yoffset:uint = 2;

    private var indicators:Array;

    private var timer:Timer;

    private static var interval:uint = 25;

    private var byteArray:ByteArray;

    private static var channels:uint = 256;

    private var factors:uint;



    public function SoundVisualizer(m:uint, c:uint = 0x000000) {

        max = m;

        color = c;

        factors = uint(channels/max);

        draw();

    }



    private function draw():void {

        indicators = new Array();

        for (var n:uint = 0; n < max; n++) {

            var indicator:SoundIndicator = new SoundIndicator(bw, bh, color);

            addChild(indicator);

            indicator.x = - uint((bw + xoffset)*max/2) + (bw + xoffset)*n;

            indicator.y = uint(bh/2);

            indicators.push(indicator);

        }

        byteArray = new ByteArray();

    }

    public function start():void {

        timer = new Timer(interval);

        timer.addEventListener(TimerEvent.TIMER, update, false, 0, true);

        timer.start();

    }

    public function stop():void {

        if (timer) {

            timer.stop();

            timer.removeEventListener(TimerEvent.TIMER, update);

        }

        reset();

    }

    public function update(evt:TimerEvent):void {

        try {

            SoundMixer.computeSpectrum(byteArray, true, factors);

        } catch (err:Error) {

            trace(err.message);

        }

        for (var n:uint = 0; n < max; n++) {

            var indicator:SoundIndicator = indicators[n];

            byteArray.position = factors*4*n;

            var percent:Number = byteArray.readFloat();

            indicator.update(percent);

        }

    }

    public function reset():void {

        for (var n:uint = 0; n < max; n++) {

            var indicator:SoundIndicator = indicators[n];

            indicator.reset();

        }

    }



}





//////////////////////////////////////////////////

// SoundIndicatorクラス

//////////////////////////////////////////////////



import flash.display.Sprite;

import flash.display.Shape;



class SoundIndicator extends Sprite {

    private var bar:Shape;

    private var color:uint;

    private var _width:uint;

    private var _height:uint;



    public function SoundIndicator(w:uint, h:uint, c:uint = 0x000000) {

        _width = w;

        _height = h;

        color = c;

        draw();

        reset();

    }



    private function draw():void {

        var base:Shape = new Shape();

        addChild(base);

        base.graphics.beginFill(color);

        base.graphics.drawRect(0, 0, _width, 1);

        base.graphics.endFill();

        //

        bar = new Shape();

        addChild(bar);

        bar.graphics.beginFill(color);

        bar.graphics.drawRect(0, 0, _width, - _height);

        bar.graphics.endFill();

    }

    public function update(percent:Number):void {

        bar.scaleY = percent;

        bar.height = uint(bar.height);

    }

    public function reset():void {

        bar.scaleY = 0;

    }



}





//////////////////////////////////////////////////

// Btnクラス

//////////////////////////////////////////////////



import flash.display.Sprite;

import flash.display.Shape;

import flash.text.TextField;

import flash.text.TextFieldType;

import flash.text.AntiAliasType;

import flash.text.TextFormat;

import flash.text.TextFormatAlign;

import flash.filters.GlowFilter;

import flash.events.MouseEvent;



class Btn extends Sprite {

    public var id:uint;

    private var shade:Shape;

    private var bottom:Shape;

    private var light:Shape;

    private var base:Shape;

    private var txt:TextField;

    private var label:String = "";

    private static var fontType:String = "_ゴシック";

    private var _width:uint = 60;

    private static var _height:uint = 20;

    private static var corner:uint = 5;

    private var type:uint = 1;

    private static var bColor:uint = 0xFFFFFF;

    private static var sColor:uint = 0x000000;

    private static var upColor:uint = 0x666666;

    private static var overColor:uint = 0x333333;

    private static var offColor:uint = 0x999999;

    private static var gColor:uint = 0x0099FF;

    private var blueGlow:GlowFilter;

    private var shadeGlow:GlowFilter;

    private var _clicked:Boolean = false;

    private var _enabled:Boolean = true;



    public function Btn() {

    }



    public function init(option:Object):void {

        if (option.id != undefined) id = option.id;

        if (option.label != undefined) label = option.label;

        if (option.width != undefined) _width = option.width;

        if (option.type != undefined) type = option.type;

        draw();

    }

    private function draw():void {

        switch (type) {

        case 1 :

            bColor = 0xFFFFFF;

            sColor = 0x000000;

            upColor = 0x666666;

            overColor = 0x333333;

            offColor = 0x999999;

            break;

        case 2 :

            bColor = 0x000000;

            sColor = 0xFFFFFF;

            upColor = 0x666666;

            overColor = 0x999999;

            offColor = 0x333333;

            break;

        }

        blueGlow = new GlowFilter(gColor, 0.6, 5, 5, 2, 3, false, true);

        shadeGlow = new GlowFilter(sColor, 0.3, 4, 4, 2, 3, false, true);

        shade = new Shape();

        bottom = new Shape();

        light = new Shape();

        base = new Shape();

        txt = new TextField();

        addChild(shade);

        addChild(bottom);

        addChild(light);

        addChild(base);

        addChild(txt);

        createBase(shade, _width, _height, corner, sColor);

        shade.filters = [shadeGlow];

        createBase(bottom, _width, _height, corner, sColor, 0.3);

        createBase(light, _width, _height, corner, gColor);

        light.filters = [blueGlow];

        createBase(base, _width, _height, corner, bColor);

        txt.x = -_width*0.5;

        txt.y = -_height*0.5;

        txt.width = _width;

        txt.height = _height - 1;

        txt.type = TextFieldType.DYNAMIC;

        txt.selectable = false;

        //txt.embedFonts = true;

        //txt.antiAliasType = AntiAliasType.ADVANCED;

        var tf:TextFormat = new TextFormat();

        tf.font = fontType;

        tf.size = 12;

        tf.align = TextFormatAlign.CENTER;

        txt.defaultTextFormat = tf;

        txt.text = label;

        enabled = true;

        mouseChildren = false;

    }

    private function rollOver(evt:MouseEvent):void {

        _over();

    }

    private function rollOut(evt:MouseEvent):void {

        _up();

    }

    private function press(evt:MouseEvent):void {

        _down();

    }

    private function release(evt:MouseEvent):void {

        _up();

    }

    private function click(evt:MouseEvent):void {

    }

    private function _up():void {

        txt.y = -_height*0.5;

        txt.textColor = upColor;

        base.y = -1;

        light.visible = false;

        light.y = -1;

    }

    private function _over():void {

        txt.y = -_height*0.5;

        txt.textColor = overColor;

        base.y = -1;

        light.visible = true;

        light.y = -1;

    }

    private function _down():void {

        txt.y = -_height*0.5 + 1;

        txt.textColor = overColor;

        base.y = 0;

        light.visible = true;

        light.y = 0;

    }

    private function _off():void {

        txt.y = -_height*0.5 + 1;

        txt.textColor = offColor;

        base.y = 0;

        light.visible = false;

        light.y = 0;

    }

    public function get clicked():Boolean {

        return _clicked;

    }

    public function set clicked(param:Boolean):void {

        _clicked = param;

        enabled = !_clicked;

        if (_clicked) {

            _down();

        } else {

            _up();

        }

    }

    public function get enabled():Boolean {

        return _enabled;

    }

    public function set enabled(param:Boolean):void {

        _enabled = param;

        buttonMode = _enabled;

        mouseEnabled = _enabled;

        useHandCursor = _enabled;

        if (_enabled) {

            _up();

            addEventListener(MouseEvent.MOUSE_OVER, rollOver, false, 0, true);

            addEventListener(MouseEvent.MOUSE_OUT, rollOut, false, 0, true);

            addEventListener(MouseEvent.MOUSE_DOWN, press, false, 0, true);

            addEventListener(MouseEvent.MOUSE_UP, release, false, 0, true);

            addEventListener(MouseEvent.CLICK, click, false, 0, true);

        } else {

            _off();

            removeEventListener(MouseEvent.MOUSE_OVER, rollOver);

            removeEventListener(MouseEvent.MOUSE_OUT, rollOut);

            removeEventListener(MouseEvent.MOUSE_DOWN, press);

            removeEventListener(MouseEvent.MOUSE_UP, release);

            removeEventListener(MouseEvent.CLICK, click);

        }

    }

    private function createBase(target:Shape, w:uint, h:uint, c:uint, color:uint, alpha:Number = 1):void {

        target.graphics.beginFill(color, alpha);

        target.graphics.drawRoundRect(-w*0.5, -h*0.5, w, h, c*2);

        target.graphics.endFill();

    }



}





//////////////////////////////////////////////////

// SoundEffectクラス

//////////////////////////////////////////////////



import flash.events.EventDispatcher;

import flash.events.Event;

import flash.events.ProgressEvent;

import flash.media.Sound;

import flash.media.SoundChannel;

import flash.media.SoundTransform;

import flash.net.URLRequest;

import flash.media.SoundLoaderContext;



class SoundEffect extends EventDispatcher {

    public var id:String;

    private var sound:Sound;

    private var channel:SoundChannel;

    private var level:Number;

    private var volume:Number = 1;

    private var looping:Boolean = false;

    public var initialized:Boolean = false;

    public var playing:Boolean = false;



    public function SoundEffect() {

    }



    public function init(Snd:Class):void {

        sound = new Snd();

    }

    public function load(filePath:String):void {

        sound = new Sound();

        sound.addEventListener(ProgressEvent.PROGRESS, progress, false, 0, true);

        sound.addEventListener(Event.COMPLETE, initialize, false, 0, true);

        try {

            sound.load(new URLRequest(filePath), new SoundLoaderContext(10, true));

        } catch (err:Error) {

            trace(err.message);

        }

    }

    private function progress(evt:ProgressEvent):void {

        dispatchEvent(evt);

    }

    private function initialize(evt:Event):void {

        initialized = true;

        channel = sound.play();

        channel.stop();

        dispatchEvent(evt);

    }

    public function play(lv:Number, loop:Boolean = false):void {

        playing = true;

        if (channel) channel.stop();

        level = lv;

        looping = loop;

        channel = sound.play();

        var transform:SoundTransform = channel.soundTransform;

        transform.volume = level*volume;

        channel.soundTransform = transform;

        if (looping) {

            channel.addEventListener(Event.SOUND_COMPLETE, complete, false, 0, true);

        }

    }

    public function stop():void {

        playing = false;

        if (channel) {

            channel.stop();

            channel.removeEventListener(Event.SOUND_COMPLETE, complete);

        }

    }

    public function setVolume(v:Number):void {

        volume = v;

        if (channel) {

            var transform:SoundTransform = channel.soundTransform;

            transform.volume = level*volume;

            channel.soundTransform = transform;

        }

    }

    private function complete(evt:Event):void {

        channel.removeEventListener(Event.SOUND_COMPLETE, complete);

        if (looping) {

            channel = sound.play(0);

            channel.addEventListener(Event.SOUND_COMPLETE, complete, false, 0, true);

            var transform:SoundTransform = channel.soundTransform;

            transform.volume = level*volume;

            channel.soundTransform = transform;

        } else {

            playing = false;

        }

    }



}