LightTune (1)
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[AS3.0] LightTuneクラスだ！ (2)
http://www.project-nya.jp/modules/weblog/details.php?blog_id=1156
背景を暗くするのに BitmapData.draw(shade) を用いた
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/**
* Copyright ProjectNya ( http://wonderfl.net/user/ProjectNya )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/4Wy6
*/
////////////////////////////////////////////////////////////////////////////////
// [AS3.0] LightTuneクラスだ！ (2)
// http://www.project-nya.jp/modules/weblog/details.php?blog_id=1156
//
// 背景を暗くするのに BitmapData.draw(shade) を用いた
////////////////////////////////////////////////////////////////////////////////
package {
import flash.display.Sprite;
import flash.display.Shape;
import flash.geom.Rectangle;
import flash.events.MouseEvent;
import net.hires.debug.Stats;
[SWF(backgroundColor="#000000", width="465", height="465", frameRate="30")]
public class Main extends Sprite {
private var light:LightTune;
private var playing:Boolean = true;
public function Main() {
Wonderfl.capture_delay(3);
init();
addChild(new Stats());
}
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 LightTune(rect);
addChild(light);
light.start();
stage.addEventListener(MouseEvent.CLICK, click, false, 0, true);
}
private function click(evt:MouseEvent):void {
playing = !playing;
if (playing) {
light.start();
} else {
light.stop();
}
}
}
}
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.Matrix;
import flash.filters.BlurFilter;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.events.Event;
class LightTune extends Sprite {
private var rect:Rectangle;
private var canvas:BitmapData;
private var bitmapData:BitmapData;
private static var scale:Number = 1.25;
private var matrix:Matrix;
private var blur:BlurFilter;
private static var point:Point = new Point();
private var light:EmitLight;
//BitmapData.draw(shade)
private var shade:BitmapData;
public function LightTune(r:Rectangle) {
rect = r;
init();
}
private function init():void {
canvas = new BitmapData(rect.width, rect.height, true, 0xFF000000);
addChild(new Bitmap(canvas));
bitmapData = new BitmapData(rect.width, rect.height, false, 0xFF000000);
matrix = new Matrix();
matrix.scale(scale, scale);
var w:int = (rect.width - rect.width*scale)*0.5;
var h:int = (rect.height - rect.height*scale)*0.5;
matrix.translate(w, h);
blur = new BlurFilter(1, 1, 3);
light = new EmitLight();
addChild(light);
light.initialize(40);
light.x = rect.width*0.5;
light.y = rect.height*0.5;
//BitmapData.draw(shade)
shade = new BitmapData(rect.width, rect.height, true, 0x08000000);
}
public function start():void {
addEventListener(Event.ENTER_FRAME, draw, false, 0, true);
}
public function stop():void {
removeEventListener(Event.ENTER_FRAME, draw);
}
private function draw(evt:Event):void {
light.create();
bitmapData.lock();
bitmapData.draw(this);
bitmapData.applyFilter(bitmapData, rect, point, blur);
//BitmapData.draw(shade)
bitmapData.draw(shade);
bitmapData.unlock();
canvas.lock();
canvas.draw(bitmapData, matrix, null, null, rect, true);
canvas.unlock();
light.emit();
}
}
import flash.display.Sprite;
import flash.geom.Rectangle;
import flash.display.BlendMode;
import frocessing.color.ColorHSV;
class EmitLight extends Sprite {
private var radius:uint;
private var circles:Array;
private static var deceleration:Number = 0.9;
private var id:uint;
private var color:ColorHSV;
public function EmitLight() {
init();
}
private function init():void {
circles = new Array();
color = new ColorHSV(0, 0.6, 1);
}
public function initialize(r:uint):void {
radius = r;
}
public function create():void {
id ++;
var angle:uint = id%360;
color.h = angle;
var circle:Circle = new Circle(color.value);
addChild(circle);
circle.x = Math.cos(-angle*Math.PI/180)*radius;
circle.y = Math.sin(-angle*Math.PI/180)*radius;
circle.vx = (Math.random()*2 - 1)*20;
circle.vy = (Math.random()*2 - 1)*20;
circle.scale = Math.random()*0.75 + 0.25;
circle.blendMode = BlendMode.HARDLIGHT;
circles.push(circle);
}
public function emit():void {
for (var n:uint = 0; n < circles.length; n++) {
var circle:Circle = circles[n];
circle.vx *= deceleration;
circle.vy *= deceleration;
circle.x += circle.vx;
circle.y += circle.vy;
circle.scale *= deceleration;
if (circle.scale < 0.1) {
circles.splice(n, 1);
removeChild(circle);
circle = null;
}
}
}
}
import flash.display.Shape;
class Circle extends Shape {
private static var radius:uint = 10;
private var rgb:uint = 0xFFFFFF;
private var _scale:Number = 1;
public var vx:Number = 0;
public var vy:Number = 0;
public function Circle(c:uint = 0xFFFFFF) {
rgb = c;
draw();
}
private function draw():void {
graphics.clear();
graphics.beginFill(rgb);
graphics.drawCircle(0, 0, radius);
graphics.drawCircle(0, 0, radius*0.6);
graphics.endFill();
}
public function get scale():Number {
return _scale;
}
public function set scale(param:Number):void {
_scale = param;
scaleX = scaleY = _scale;
}
}