BitmapFilterEffect&Particles
ステージクリックでパーティクルを置きます。MAX６０個。
定番のブラー＋スクロールに一工夫して、見た目の変化をつけようというものです。
/**
* Copyright lagash ( http://wonderfl.net/user/lagash )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/x0QG
*/
//ステージクリックでパーティクルを置きます。MAX６０個。
//定番のブラー＋スクロールに一工夫して、見た目の変化をつけてみようというものです。
package {
import flash.display.Sprite;
import flash.display.Shape;
import flash.display.Bitmap;
import flash.display.Stage;
import flash.display.BitmapData;
import flash.display.DisplayObjectContainer;
import flash.display.LineScaleMode;
import flash.display.BlendMode;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.geom.ColorTransform;
import flash.events.Event;
import flash.utils.ByteArray;
import flash.filters.BlurFilter;
public class partest extends Sprite {
var shape1:Shape;
var shape2:Shape;
var tmpBmd:BitmapData;
var bmp:Bitmap;
var emptymatrix: Matrix = new Matrix();
var flg:Boolean;
static public const _TABLE_SIZE:int = 0x10000;
static public const _PI:Number = Math.PI;
static public const _RADIANS:Number;// = _DEGREES * (_PI / 180);
static public const _TWO_PI:Number = 2 * _PI;
static public const _TWO_PI_SCALE:Number = _TABLE_SIZE / _TWO_PI;
static public const _HALF_PI:Number = _PI / 2;
static public const _table:Vector.<Number> = new function ():Vector.<Number>{
var table:Vector.<Number> = new Vector.<Number>(_TABLE_SIZE, true);
for (var i:uint = 0; i < _TABLE_SIZE; i++) {
table[i] = Math.sin(i / _TWO_PI_SCALE);
}
return table;
};
static public var stageWidth;
static public var stageHeight;
static public var mouse_X;
static public var mouse_Y;
var centerX:uint;
var centerY:uint;
var count:uint=0;
private var particles:Vector.<particle>=new Vector.<particle>();
public function partest() {
super();
addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event) {
stage.frameRate = 30;
stageWidth = stage.stageWidth;
stageHeight = stage.stageHeight;
shape1 = new Shape();//主線描画用
shape1.visible = false;
shape2 = new Shape();//主線描画用
shape2.visible = false;
tmpBmd = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000);
emptymatrix.identity();
//emptymatrix.b = emptymatrix.c = 2;
stage.addEventListener(MouseEvent.MOUSE_DOWN, function(e:MouseEvent) { flg = true; } );
stage.addEventListener(MouseEvent.MOUSE_UP, function(e:MouseEvent) { flg = false; particles[particles.length - 1].cut = true; } );
stage.addEventListener(Event.ENTER_FRAME, enterframeHandlr);
bmp = new Bitmap(new BitmapData(stage.stageWidth, stage.stageHeight, true,0xff000000), "auto", true);//bitmap処理用
addChild(bmp);
addChild(shape1);
addChild(shape2);
}
private function mouseclickHandlr(e) {
flg = true;
enterframeHandlr(e);
flg = false;
}
private function enterframeHandlr(e)
{
mouse_X = e.currentTarget.mouseX;
mouse_Y = e.currentTarget.mouseY;
var flg_2 = 0;
bmp.bitmapData.lock();
shape1.graphics.clear();
shape2.graphics.clear();
centerX = centerY = 0;
for (var i = 0; i < particles.length; i++) {
var tmpObj = particles[i];
var velo=Math.abs(particles[i].tx) * Math.abs(particles[i].ty);
if (velo > 6 && i!=0) { mouse_X = tmpObj.xx; mouse_Y = tmpObj.yy; flg_2 = 1; }
//shape1.graphics.lineStyle(velo * 4, 0xeeeeee, velo, false);
shape2.graphics.lineStyle(1, tmpObj.col, .1, false);
if (i == 0 ) {
//shape1.graphics.moveTo(tmpObj.obj.xx + tmpObj.obj._x * .5, tmpObj.obj.yy + tmpObj.obj._y * .5);
shape2.graphics.moveTo(tmpObj.obj.xx + tmpObj.obj._x * .5+tmpObj.obj.tx*5, tmpObj.obj.yy + tmpObj.obj._y * .5+tmpObj.obj.ty*5);
}
//shape1.graphics.curveTo(tmpObj.xx + tmpObj._x, tmpObj.yy + tmpObj._y, tmpObj.xx + tmpObj._x * .5, tmpObj.yy + tmpObj._y * .5);
shape2.graphics.curveTo(tmpObj.xx + tmpObj._x+tmpObj.tx*5, tmpObj.yy + tmpObj._y+tmpObj.ty*5, tmpObj.xx + tmpObj._x * .5+tmpObj.tx*5, tmpObj.yy + tmpObj._y * .5+tmpObj.ty*5);
shape1.graphics.lineStyle(velo * 4, 0xeeeeee, .2, true);
shape1.graphics.drawCircle(tmpObj.xx, tmpObj.yy, velo*5);
tmpBmd.setPixel32(tmpObj.xx, tmpObj.yy, 0x88000000);// particles[i].col);
centerX += tmpObj.xx;
centerY += tmpObj.yy;
}
//スクロール速度・方向は重心と中心の距離・方向で
centerX /= particles.length;
centerY /= particles.length;
bmp.bitmapData.scroll((stageWidth / 2 - centerX) / 10, (stageHeight / 2 - centerY) / 10);
tmpBmd.scroll( -(stageWidth / 2 - centerX) / 5, -(stageHeight / 2 - centerY) / 5);
bmp.bitmapData.draw(shape1,emptymatrix, null, BlendMode.LIGHTEN);
bmp.bitmapData.draw(shape2,emptymatrix, null, BlendMode.ADD);
bmp.bitmapData.copyPixels(tmpBmd,new Rectangle(0,0,this.width,this.height),new Point(0,0),tmpBmd,new Point(0,0),true);// , emptymatrix, null, BlendMode.ADD);
bmp.bitmapData.applyFilter(bmp.bitmapData,new Rectangle(0,0,this.width,this.height),new Point(0,0),new BlurFilter(2,2,1));
bmp.bitmapData.draw(shape1,emptymatrix, null, BlendMode.OVERLAY);
//tmpBmd.applyFilter(tmpBmd,new Rectangle(0,0,this.width,this.height),new Point(0,0),new BlurFilter(2,2,1));
bmp.bitmapData.unlock();
if(count<30){
count++;
mouse_X=Math.random()*stage.stageWidth;
mouse_Y=stage.stageHeight/2;
flg=true;
if(count==30)flg=false;
}
if (!flg && flg_2==0) return;
if (particles.length > 0) {
if (getLineLength(new Rectangle(particles[particles.length - 1].xx, particles[particles.length - 1].yy, mouse_X, mouse_Y)) < 3) { ; return false; }
do{
var newX = mouse_X + (Math.random() * 100-50) * flg_2;
var newY = mouse_Y + (Math.random() * 100-50) * flg_2;
}while (newX<0 || newX>stageWidth || newY<0 || newY>stageHeight);
particles.push(new particle(newX,newY, particles.length, particles[particles.length-1]));
shape1.graphics.lineStyle(20+flg_2*20, 0xffffff, .2, true);
shape1.graphics.drawCircle(newX, newY, 40+flg_2*30);
bmp.bitmapData.draw(shape1,emptymatrix, null, BlendMode.LIGHTEN);
particles[0].setObj(particles[particles.length-1]);
} else {
particles.push(new particle(mouse_X,mouse_Y,0));
}
if (particles.length > 60) {//これを増やすと点の上限数が増える
shape1.graphics.lineStyle(30, 0x000000, .8, true);
shape1.graphics.drawCircle(particles[0].xx, particles[0].yy, 60);
bmp.bitmapData.draw(shape1,emptymatrix, null, BlendMode.SUBTRACT);
particles.shift();
}
}
function getLineLength(p:Rectangle):Number
{
var vx=p.x-p.width;
var vy=p.y-p.height;
var vl=Math.sqrt(Math.pow(vx,2)+Math.pow(vy,2));
return vl;
}
}
}
import flash.display.Sprite;
import flash.display.Shape;
import flash.display.Bitmap;
import flash.display.Stage;
import flash.display.BitmapData;
import flash.display.DisplayObjectContainer;
import flash.display.LineScaleMode;
import flash.display.BlendMode;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.geom.ColorTransform;
import flash.events.Event;
import flash.utils.ByteArray;
import flash.filters.BlurFilter;
class particle extends Sprite{
var col:uint = 0;
var ox:Number=0;
var oy:Number=0;
var ol:Number=0;
var xx:Number=0;
var yy:Number=0;
var _x:Number=0;
var _y:Number=0;
var tx:Number=0;
var ty:Number=0;
var dx:Number=0;
var dy:Number=0;
var dl:Number=0;
var cnt:Number=0;
var obj:particle;
var cut:Boolean = false;
public function particle(... args):void {
ox= xx = args[0];
oy= yy = args[1];
name = args[2];
obj = args[3];
if (args[3]==undefined) {
obj = this;
}
var tmptime = new Date();
cnt = tmptime.milliseconds * .002 * Math.PI;
tx = partest._table[((cnt + partest._HALF_PI) * partest._TWO_PI_SCALE) & (partest._TABLE_SIZE - 1)];
ty = partest._table[(cnt * partest._TWO_PI_SCALE) & (partest._TABLE_SIZE - 1)];
col = Math.random() * 16777215;
addEventListener(Event.ENTER_FRAME, enterframeHandlr);
}
private function enterframeHandlr(e:Event) {
calcVector();
}
private function calcVector() {
//この子は一つ前の点を追う動きをする
cnt += (cnt < 12.56)?.3: -cnt;
_x = obj.xx - this.xx;
_y = obj.yy - this.yy;
ol = _x * _x + _y * _y;
if (ol > 3) {
dx = _x / ol;
dy = _y / ol;
dx = (!dx)?0:dx;
dy = (!dy)?0:dy;
dx = (Math.abs(dx)<2)?dx:dx/Math.abs(dx);
dy = (Math.abs(dy)<2)?dy:dy/Math.abs(dy);
tx += dx * uint(dx > 0 && tx < 5) + dx * uint(dx<0 && tx>-5);// + partest._table[((cnt + partest._HALF_PI) * partest._TWO_PI_SCALE) & (partest._TABLE_SIZE - 1)];
ty += dy * uint(dy > 0 && ty < 5) + dy * uint(dy<0 && ty>-5);//+ partest._table[(cnt * partest._TWO_PI_SCALE) & (partest._TABLE_SIZE - 1)];
tx = (Math.abs(tx)<5)?tx:tx/Math.abs(tx)*5;
ty = (Math.abs(ty)<5)?ty:ty/Math.abs(ty)*5;
}
xx += tx;
yy += ty;
if(partest.stageWidth){
if (xx < 0 || xx > partest.stageWidth) { xx -= tx; tx = -tx*.3; }
if (yy < 0 || yy > partest.stageHeight) { yy -= ty; ty = -ty*.3; }
}
}
public function setObj(o):void {
obj = o;
}
}