forked from: 重力マウス（シンクロカラー）
リンクリストにしてみたけどそんなに速くない？？
_bmd.fillRect()を_bmd.setPixel()に変更。
sin(),cos(),atan2(),sqrt()を排除。
パーティクルの多色化＆モーションシンクロ
/**
* Copyright Aquioux ( http://wonderfl.net/user/Aquioux )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/b3ru
*/
// forked from coppieee's 重力マウス（さらに軽量化してみた）
// forked from paq's forked from: 重力マウス（ちょっぴり軽量化してみた）
// forked from fumix's 重力マウス（リンクリストにしてみた）
// forked from undo's 重力マウス
// リンクリストにしてみたけどそんなに速くない？？
//_bmd.fillRect()を_bmd.setPixel()に変更。
//sin(),cos(),atan2(),sqrt()を排除。
// パーティクルの多色化＆モーションシンクロ
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.geom.ColorTransform;
import flash.geom.Point;
import flash.geom.Rectangle;
import net.hires.debug.Stats;
[SWF(frameRate='60', width='465', height='465', backgroundColor='0x0')]
public class ParticleTest1 extends Sprite
{
private var _bmd:BitmapData;
private var _first1:Node;
private var _first2:Node;
private var _first3:Node;
private var _first4:Node;
private const NUM_OF_PARTICLE:int = 12500;
private const OFFSET:uint = 120;
private const RECT:Rectangle = new Rectangle(0, 0, 465, 465);
private const CT:ColorTransform = new ColorTransform(1.0, 1.0, 1.0, 0.92);
public function ParticleTest1()
{
this.stage.align = StageAlign.TOP_LEFT;
this.stage.scaleMode = StageScaleMode.NO_SCALE;
addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(evt:Event):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
_bmd = new BitmapData(465, 465, false, 0x000000);
addChild(new Bitmap(_bmd));
var old1:Node;
var old2:Node;
var old3:Node;
var old4:Node;
for (var i:int = 0; i < this.NUM_OF_PARTICLE; i++)
{
var n1:Node = new Node();
var n2:Node = new Node();
var n3:Node = new Node();
var n4:Node = new Node();
n1.pos_x = Math.random() * 465;
n1.pos_y = Math.random() * 465;
n2.pos_x = Math.random() * 465;
n2.pos_y = Math.random() * 465;
n3.pos_x = Math.random() * 465;
n3.pos_y = Math.random() * 465;
n4.pos_x = Math.random() * 465;
n4.pos_y = Math.random() * 465;
// リンクリスト
if (_first1 == null) {
old1 = _first1 = n1;
old2 = _first2 = n2;
old3 = _first3 = n3;
old4 = _first4 = n4;
} else {
old1.next = n1;
old1 = n1;
old2.next = n2;
old2 = n2;
old3.next = n3;
old3 = n3;
old4.next = n4;
old4 = n4;
}
}
addChild(new Stats());
addEventListener(Event.ENTER_FRAME, onEnter);
}
private function onEnter(evt:Event):void
{
var gravPoint_x:Number = mouseX;
var gravPoint_y:Number = mouseY;
var n1:Node = _first1;
var n2:Node = _first2;
var n3:Node = _first3;
var n4:Node = _first4;
this._bmd.lock();
do
{
var diff_x1:Number = gravPoint_x - n1.pos_x - OFFSET;
var diff_y1:Number = gravPoint_y - n1.pos_y - OFFSET;
var diff_x2:Number = gravPoint_x - n2.pos_x + OFFSET;
var diff_y2:Number = gravPoint_y - n2.pos_y - OFFSET;
var diff_x3:Number = gravPoint_x - n3.pos_x - OFFSET;
var diff_y3:Number = gravPoint_y - n3.pos_y + OFFSET;
var diff_x4:Number = gravPoint_x - n4.pos_x + OFFSET;
var diff_y4:Number = gravPoint_y - n4.pos_y + OFFSET;
var acc1:Number = 25 / (diff_x1 * diff_x1 + diff_y1 * diff_y1);
var acc_x1:Number = acc1 * diff_x1;
var acc_y1:Number = acc1 * diff_y1;
var acc2:Number = 25 / (diff_x2 * diff_x2 + diff_y2 * diff_y2);
var acc_x2:Number = acc2 * diff_x2;
var acc_y2:Number = acc2 * diff_y2;
var acc3:Number = 25 / (diff_x3 * diff_x3 + diff_y3 * diff_y3);
var acc_x3:Number = acc3 * diff_x3;
var acc_y3:Number = acc3 * diff_y3;
var acc4:Number = 25 / (diff_x4 * diff_x4 + diff_y4 * diff_y4);
var acc_x4:Number = acc4 * diff_x4;
var acc_y4:Number = acc4 * diff_y4;
n1.v_x += acc_x1;
n1.v_y += acc_y1;
n1.pos_x += n1.v_x;
n1.pos_y += n1.v_y;
n1.v_x *= 0.96;
n1.v_y *= 0.96;
n2.v_x += acc_x2;
n2.v_y += acc_y2;
n2.pos_x += n2.v_x;
n2.pos_y += n2.v_y;
n2.v_x *= 0.96;
n2.v_y *= 0.96;
n3.v_x += acc_x3;
n3.v_y += acc_y3;
n3.pos_x += n3.v_x;
n3.pos_y += n3.v_y;
n3.v_x *= 0.96;
n3.v_y *= 0.96;
n4.v_x += acc_x4;
n4.v_y += acc_y4;
n4.pos_x += n4.v_x;
n4.pos_y += n4.v_y;
n4.v_x *= 0.96;
n4.v_y *= 0.96;
/*
if (n1.pos_x > 465) {
n1.pos_x = 0;
} else if (n1.pos_x < 0) {
n1.pos_x = 465;
}
if (n1.pos_y > 465) {
n1.pos_y = 0;
} else if (n1.pos_y < 0) {
n1.pos_y = 465;
}
if (n2.pos_x > 465) {
n2.pos_x = 0;
} else if (n2.pos_x < 0) {
n2.pos_x = 465;
}
if (n2.pos_y > 465) {
n2.pos_y = 0;
} else if (n2.pos_y < 0) {
n2.pos_y = 465;
}
if (n3.pos_x > 465) {
n3.pos_x = 0;
} else if (n3.pos_x < 0) {
n3.pos_x = 465;
}
if (n3.pos_y > 465) {
n3.pos_y = 0;
} else if (n3.pos_y < 0) {
n3.pos_y = 465;
}
if (n4.pos_x > 465) {
n4.pos_x = 0;
} else if (n4.pos_x < 0) {
n4.pos_x = 465;
}
if (n4.pos_y > 465) {
n4.pos_y = 0;
} else if (n4.pos_y < 0) {
n4.pos_y = 465;
}
*/
this._bmd.setPixel(n1.pos_x, n1.pos_y, 0xFF0033);
this._bmd.setPixel(n2.pos_x, n2.pos_y, 0xFFCC00);
this._bmd.setPixel(n3.pos_x, n3.pos_y, 0x66FF66);
this._bmd.setPixel(n4.pos_x, n4.pos_y, 0x3366FF);
}
while (n1 = n1.next, n2 = n2.next, n3 = n3.next, n4 = n4.next);
this._bmd.colorTransform(this.RECT, this.CT);
this._bmd.unlock();
}
}
}
class Node
{
public var v_x:Number = 0;
public var v_y:Number = 0;
public var pos_x:Number = 0;
public var pos_y:Number = 0;
public var next:Node;
}