FF: Ripple01 + Collision
/**
* Copyright WLAD ( http://wonderfl.net/user/WLAD )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/kTtz
*/
// forked from s8t1h12akj's forked from: forked from: Ripple01
// forked from WLAD's forked from: Ripple01
// forked from chutaicho's Ripple01
//-----------------------------------------------------
// title : Ripple
// 波紋効果の練習
//-----------------------------------------------------
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BitmapDataChannel;
import flash.display.BlendMode;
import flash.display.Loader;
import flash.display.Sprite;
import flash.display.StageQuality;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filters.ConvolutionFilter;
import flash.filters.DisplacementMapFilter;
import flash.filters.DisplacementMapFilterMode;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.net.URLRequest;
import flash.system.LoaderContext;
[SWF(backgroundColor="0x000000", frameRate="30", width="465", height="465")]
public class Ripple01 extends Sprite
{
private const IMAGE_URL:String = "http://assets.wonderfl.net/images/related_images/c/ca/ca47/ca47a073a3ed4057d9290bd18da08bbf14b8d896";
private const RIPPLE_SIZE:int = 20; //波紋サイズ
private const BUFFER_SCALE:Number = 0.2; //バッファ用ビットマップのサイズ
private var _sample:Bitmap;
private var _buffer1:BitmapData;
private var _buffer2:BitmapData;
private var _defData:BitmapData;
private var _scale:Number;
private var _matrix:Matrix;
private var _fullRect:Rectangle;
private var _drawRect:Rectangle;
private var _origin:Point;
private var _filter:DisplacementMapFilter;
private var _convoFilter:ConvolutionFilter;
private var _colorTransform:ColorTransform;
private var _index:int;
private var _balls:Array = [];
public function Ripple01()
{
stage.quality = StageQuality.MEDIUM;;
stage.frameRate = 40;
graphics.beginFill(0);
graphics.drawRect(0, 0, 465, 465);
mouseEnabled = false;
var BALLS:int = 7;
for ( _index = 0; _index < BALLS; ++_index ) {
var ball:Ball = new Ball();
ball.x = Math.random() * 465;
ball.y = Math.random() * 465;
stage.addChild( ball );
_balls.push( ball );
}
stage.addEventListener('mouseUp', function(_:*):void {
for ( _index = 0; _index < BALLS; ++_index ) {
_balls[_index].drag = false;
}
});
stage.addEventListener('enterFrame', function(_:*):void {
for ( _index = 0; _index < BALLS; ++_index ) {
_balls[_index].time();
}
for ( _index = 0; _index < BALLS; ++_index ) {
for ( var _jindex:int = _index + 1; _jindex < BALLS; ++_jindex ) {
if ( Point.distance( _balls[_index].pos, _balls[_jindex].pos ) >
_balls[_index].radius + _balls[_jindex].radius ) {
//_balls[_index].contact = false;
//_balls[_jindex].contact = false;
}else _balls[_index].bounce( _balls[ _jindex ] );
}
}
});
init();
}
private function init():void
{
var req:URLRequest = new URLRequest(IMAGE_URL);
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete);
loader.load( req, new LoaderContext(true));
}
private function loadComplete(e:Event):void
{
e.target.removeEventListener(Event.COMPLETE, loadComplete);
var sw:int = stage.stageWidth;
var sh:int = stage.stageHeight;
// 読み込んだ画像を一旦リサイズ
var source:Bitmap = e.target.loader.content as Bitmap;
var resizeData:BitmapData = new BitmapData(sw, sh);
source.width = sw;
source.height = sh;
resizeData.draw( source );
_sample = new Bitmap(resizeData);
addChild(_sample);
// ちょっと傾ける
//rotationX = -30;
_buffer1 = new BitmapData(_sample.width*BUFFER_SCALE, _sample.height*BUFFER_SCALE, false, 0x000000);
_buffer2 = new BitmapData(_buffer1.width, _buffer1.height, false, 0x000000);
_defData = new BitmapData(_sample.width, _sample.height, false, 0x7f7f7f);
_fullRect = new Rectangle(0, 0, _buffer1.width, _buffer1.height);
_drawRect = new Rectangle();
_filter = new DisplacementMapFilter(_buffer1, new Point(), BitmapDataChannel.BLUE, BitmapDataChannel.BLUE, 50, 50, DisplacementMapFilterMode.WRAP);
_sample.filters = [_filter];
addEventListener(Event.ENTER_FRAME, enterFrameHandler);
_convoFilter = new ConvolutionFilter(3, 3, [0.5, 1, 0.5, 1, 0, 1, 0.5, 1, 0.5], 3);
_colorTransform = new ColorTransform(1, 1, 1, 1, 0, 128, 128);
_matrix = new Matrix(_defData.width/_buffer1.width, 0, 0, _defData.height/_buffer1.height);
}
private function enterFrameHandler(event : Event) : void
{
var rad:int = RIPPLE_SIZE/2 * -1;
for ( _index = 0; _index < _balls.length; ++_index ) {
if ( _balls[_index].force > 1 ) {
_drawRect.x = ( rad + _balls[_index].x ) * BUFFER_SCALE;
_drawRect.y = ( rad + _balls[_index].y ) * BUFFER_SCALE;
_drawRect.width = _drawRect.height = RIPPLE_SIZE * BUFFER_SCALE;
_buffer1.fillRect(_drawRect, 0xFF);
}
}
var temp:BitmapData = _buffer2.clone();
_buffer2.applyFilter(_buffer1, _fullRect, new Point(), _convoFilter);
_buffer2.draw(temp, null, null, BlendMode.SUBTRACT, null, false);
_defData.draw(_buffer2, _matrix, _colorTransform, null, null, true);
_filter.mapBitmap = _defData;
_sample.filters = [_filter];
temp.dispose();
switchBuffers();
}
// バッファの入れ替え
private function switchBuffers():void
{
var temp : BitmapData;
temp = _buffer1;
_buffer1 = _buffer2;
_buffer2 = temp;
}
}
}
import flash.display.Sprite;
import flash.geom.Point;
class Ball extends Sprite
{
public var velocityX:Number = 0;
public var velocityY:Number = 0;
public var mass:Number = 1;
public var radius:Number = 14;
public var drag:Boolean = false;
public var force:Number = 0;
public var contact:Boolean = false;
public function get pos():Point { return new Point(x, y);}
public function Ball()
{
useHandCursor = buttonMode = true;
velocityX = ( Math.random() - 0.5 ) * 4;
velocityY = ( Math.random() - 0.5 ) * 4;
graphics.beginFill( 0x88EBF0 | ( Math.random() * 0x333333 ) );
graphics.drawCircle( 0, 0, 14 );
graphics.endFill();
graphics.beginFill( 0xFFFFFF );
graphics.drawCircle( 4, 0, 2);
graphics.endFill();
graphics.beginFill( 0xFFFFFF, 0.5 );
graphics.drawCircle( 4, 0, 4);
graphics.endFill();
addEventListener('mouseDown', function(_:*):void { drag = true; });
}
public function time():void
{
rotation = Math.atan2( y - stage.mouseY, x - stage.mouseX ) * 57.295779;
x += velocityX;
y += velocityY;
if ( x - radius < 0 ) velocityX = Math.abs( velocityX );
if ( x + radius > 465 ) velocityX = -Math.abs( velocityX );
if ( y - radius < 0 ) velocityY = Math.abs( velocityY );
if ( y + radius > 465 ) velocityY = -Math.abs( velocityY );
velocityX *= 0.99;
velocityY *= 0.99;
if ( drag ) {
velocityX += ( stage.mouseX - x ) * 0.05;
velocityY += ( stage.mouseY - y ) * 0.05;
}
if ( Math.abs(velocityX) < 0.1 ) velocityX = 0;
if ( Math.abs(velocityY) < 0.1 ) velocityY = 0;
force = Math.sqrt( velocityX * velocityX + velocityY * velocityY);
}
public function bounce( ball:Ball ):void
{
//if ( ball.contact || contact ) return;
//ball.contact = true; contact = true;
var dx:Number = ball.x - x;
var dy:Number = ball.y - y;
var a:Number = Math.atan2(dy, dx);
var m1:Number = Math.sqrt(ball.velocityX * ball.velocityX + ball.velocityY * ball.velocityY);
var m2:Number = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
var d1:Number = Math.atan2(ball.velocityY, ball.velocityX);
var d2:Number = Math.atan2(velocityY, velocityX);
var s1x:Number = m1 * Math.cos(d1 - a);
var s1y:Number = m1 * Math.sin(d1 - a);
var s2x:Number = m2 * Math.cos(d2 - a);
var s2y:Number = m2 * Math.sin(d2 - a);
var v1x:Number = ((ball.mass - mass) * s1x + (mass + mass) * s2x) / (ball.mass + mass);
var v2x:Number = ((ball.mass + ball.mass) * s1x + (mass - ball.mass) * s2x) / (ball.mass + mass);
var v1y:Number = s1y;
var v2y:Number = s2y;
ball.velocityX = Math.cos(a) * v1x + Math.cos(a + Math.PI / 2) * v1y;
ball.velocityY = Math.sin(a) * v1x + Math.sin(a + Math.PI / 2) * v1y;
velocityX = Math.cos(a) * v2x + Math.cos(a + Math.PI / 2) * v2y;
ball.velocityY = Math.sin(a) * v2x + Math.sin(a + Math.PI / 2) * v2y;
}
}