EmitLight (5)
////////////////////////////////////////////////////////////////////////////////
// EmitLight (5)
//
// 音はTsabeat より拝借
// http://www.ektoplazm.com/free-music/tsabeat-warp-speed-ep/
////////////////////////////////////////////////////////////////////////////////
/**
* Copyright ProjectNya ( http://wonderfl.net/user/ProjectNya )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/cJD7
*/
// forked from Event's Instrument
////////////////////////////////////////////////////////////////////////////////
// EmitLight (5)
//
// 音はTsabeat より拝借
// http://www.ektoplazm.com/free-music/tsabeat-warp-speed-ep/
////////////////////////////////////////////////////////////////////////////////
package {
import flash.display.Sprite;
import flash.geom.Rectangle;
[SWF(backgroundColor="#000000", width="465", height="465", frameRate="60")]
public class Main extends Sprite {
private var light:EmitLight;
public function Main() {
//Wonderfl.capture_delay(4);
init();
}
private function init():void {
graphics.beginFill(0x000000);
graphics.drawRect(0, 0, 465, 465);
graphics.endFill();
var rect:Rectangle = new Rectangle(0, 0, 465, 465);
light = new EmitLight(rect);
addChild(light);
}
}
}
//////////////////////////////////////////////////
// EmitLightクラス
//////////////////////////////////////////////////
import flash.display.Sprite;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.geom.Matrix;
import flash.geom.ColorTransform;
import flash.display.BlendMode;
import flash.filters.BlurFilter;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.media.SoundLoaderContext;
import flash.media.SoundMixer;
import flash.utils.ByteArray;
import flash.net.URLRequest;
import flash.system.Security;
import frocessing.color.ColorHSV;
class EmitLight extends Sprite {
private var rect:Rectangle;
private var bitmapData:BitmapData;
private var bitmap:Bitmap;
private var container:Sprite;
private static var max:uint = 4;
private var particles:Array;
private var color:ColorHSV;
private var colorTrans:ColorTransform;
private static var blur:BlurFilter;
private static var point:Point = new Point();
private var id:uint = 0;
private static var policyPath:String = "http://mutast.heteml.jp/crossdomain.xml";
private var sound:Sound;
private var channel:SoundChannel;
private static var soundPath:String = "http://mutast.heteml.jp/works/music/music.mp3";
private var byteArray:ByteArray;
private static var channels:uint = 256;
private var factors:uint = 0;
private static var radian:Number = Math.PI/180;
private static var radius:uint = 128;
public function EmitLight(r:Rectangle) {
rect = r;
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init, false, 0, true);
}
private function init(evt:Event = null):void {
removeEventListener(Event.ADDED_TO_STAGE, init);
bitmapData = new BitmapData(rect.width, rect.height, true, 0x00000000);
bitmap = new Bitmap(bitmapData);
addChild(bitmap);
container = new Sprite();
addChild(container);
particles = new Array();
color = new ColorHSV(0);
colorTrans = new ColorTransform();
blur = new BlurFilter(8, 8, 3);
//
Security.loadPolicyFile(policyPath);
sound = new Sound();
sound.addEventListener(Event.COMPLETE, loaded, false, 0, true);
sound.load(new URLRequest(soundPath), new SoundLoaderContext(10, true));
byteArray = new ByteArray();
}
private function loaded(evt:Event):void {
evt.target.removeEventListener(Event.COMPLETE, loaded);
start();
}
private function start():void {
channel = sound.play(0, 1000);
addEventListener(Event.ENTER_FRAME, update, false, 0, true);
}
private function update(evt:Event):void {
SoundMixer.computeSpectrum(byteArray, false, factors);
var units:Array = new Array();
for (var n:uint = 0; n < channels; n++) {
var p:Number = byteArray.readFloat();
if (n%32 == 0) units.push(p);
}
create(units);
draw();
}
private function draw():void {
bitmapData.lock();
for (var n:uint = 0; n < particles.length; n++) {
var particle:Particle = particles[n];
particle.update();
particle.scale = particle.alpha = particle.power;
if (particle.power < 0) {
container.removeChild(particle);
particles.splice(n, 1);
particle = null;
}
}
color.h = id;
colorTrans.color = color.value;
bitmapData.draw(container, null, colorTrans, BlendMode.SCREEN, null, true);
bitmapData.applyFilter(bitmapData, rect, point, blur);
bitmapData.unlock();
id ++;
}
private function create(units:Array):void {
for (var n:uint = 0; n < max; n++) {
var particle:Particle = new Particle();
var p:Number = units[n]*360 + 90;
particle.tx = 232 + radius*Math.cos(p*radian);
particle.ty = 232 + radius*Math.sin(p*radian);
particle.angle = Math.random()*360;
particle.speed = Math.random()*3 + 5;
particle.power = 1;
particle.setup();
container.addChild(particle);
particles.push(particle);
}
}
}
//////////////////////////////////////////////////
// Particleクラス
//////////////////////////////////////////////////
import flash.display.Shape;
class Particle extends Shape {
private static var radius:uint = 6;
private static var color:uint = 0xFFFFFF;
public var angle:Number = 0;
public var speed:Number = 0;
public var tx:Number;
public var ty:Number;
private var vx:Number = 0;
private var vy:Number = 0;
public var power:Number = 0;
private static var radian:Number = Math.PI/180;
private static var friction:Number = 0.96;
private static var deceleration:Number = 0.016;
private static var acceleration:Number = 0.02;
private var _scale:Number = 1;
public function Particle() {
draw();
}
private function draw():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
public function setup():void {
x = tx;
y = ty;
vx = speed*Math.cos(angle*radian);
vy = speed*Math.sin(angle*radian);
}
public function update():void {
tx += vx;
ty += vy;
x += (tx - x)*acceleration;
y += (ty - y)*acceleration;
vx *= friction;
vy *= friction;
power -= deceleration;
}
public function get scale():Number {
return _scale;
}
public function set scale(param:Number):void {
_scale = param;
scaleX = scaleY = _scale;
}
}