view from under water
水中からの眺め
/**
* Copyright okoi ( http://wonderfl.net/user/okoi )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/zDyU
*/
//
// view from under water
// 海底から水面を見上げているようなエフェクト
// 背景のグラデーションの設定がうまく出来てないｗ
//
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.display.Shape;
import flash.display.Graphics;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.display.BlendMode;
import flash.filters.BlurFilter;
import flash.filters.ColorMatrixFilter;
import flash.filters.DisplacementMapFilter;
import flash.filters.DisplacementMapFilterMode;
import flash.display.BitmapDataChannel;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.ColorTransform;
[SWF(width = "465", height = "465", frameRate = "60")]
/**
* ...
* @author
*/
public class Main extends Sprite
{
private var _shinelist:/*ShineParticle*/Array;
private var _step:int;
private var _lightcanvas:BitmapData;
private var _shinecanvas:BitmapData;
private static const SUN_X:Number = WIDTH / 2;
private static const SUN_Y:Number = HEIGHT / 2;
private var _colorfilter:ColorMatrixFilter;
private var _blurfilter:BlurFilter;
private var _buffercanvas:BitmapData;
private var _canvas:BitmapData;
// 波Map
private var _wave:BitmapData;
private var _waveOffset:Point;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
// entry point
var gradientMat:Matrix = new Matrix();
gradientMat.createGradientBox( WIDTH, HEIGHT, 0, 0, 0 );
graphics.beginGradientFill("radial", [0x0C08FF, 0x0604FF, 0x0302FF, 0x0302A0], [1, 1, 1, 1], [0, 20 , 64, 255], gradientMat);
graphics.drawRect(0, 0, WIDTH, HEIGHT);
graphics.endFill();
_buffercanvas = new BitmapData( WIDTH, HEIGHT, true, 0 );
_canvas = new BitmapData(WIDTH, HEIGHT, true, 0 );
addChild( new Bitmap(_canvas) );
_colorfilter = new ColorMatrixFilter([
1, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0.99, 0
]);
_blurfilter = new BlurFilter(10,10,2);
_shinecanvas = new BitmapData( WIDTH, HEIGHT, true, 0 );
// 波のゆらぎ用に使うデータ
_wave = new BitmapData( WIDTH, HEIGHT, true, 0 );
_waveOffset = new Point();
_step = 0;
_shinelist = [];
addEventListener( Event.ENTER_FRAME, EnterFrameHandler );
}
private function EnterFrameHandler( e:Event ) : void
{
var color:ColorTransform = new ColorTransform(1, 1, 1, 0.9);
var shinenum:int = _shinelist.length;
_shinecanvas.lock();
//_shinecanvas.fillRect( _shinecanvas.rect, 0 );
_shinecanvas.applyFilter( _shinecanvas, _shinecanvas.rect, new Point(), _colorfilter );
_shinecanvas.applyFilter( _shinecanvas, _shinecanvas.rect, new Point(), _blurfilter );
for ( var i:int = shinenum - 1; i >= 0; i-- )
{
_shinelist[i].Update();
if ( _shinelist[i].life <= 0 ) {
_shinelist.splice( i, 1 );
}else
{
_shinecanvas.draw(
_shinelist[i].shape,
new Matrix(1, 0, 0, 1, _shinelist[i].x - _shinelist[i].size / 2, _shinelist[i].y - _shinelist[i].size / 2 ),
null,
BlendMode.ADD
);
}
}
_shinecanvas.applyFilter( _shinecanvas, _shinecanvas.rect, new Point(),
new DisplacementMapFilter(
_wave,
new Point(),
BitmapDataChannel.RED, // X方向置き換えに使うchannel
BitmapDataChannel.RED, // Y方向置き換えに使うchannel
20,
20,
DisplacementMapFilterMode.CLAMP,
0,
0
)
);
_shinecanvas.unlock();
var mat:Matrix = new Matrix();
mat.createBox(
1.3,
1.3,
0,
-(_canvas.width * 1.3 - _canvas.width) / 2,
-(_canvas.height * 1.3 - _canvas.height) / 2
);
_canvas.lock();
_canvas.fillRect(_canvas.rect, 0 );
_canvas.draw( _shinecanvas );
_canvas.draw( _buffercanvas, mat, color );
_canvas.unlock();
// ブラー用バッファ
_buffercanvas.lock();
_buffercanvas.fillRect( _buffercanvas.rect, 0 );
_buffercanvas.draw( _canvas );
_buffercanvas.applyFilter( _buffercanvas, _shinecanvas.rect, new Point(), _blurfilter );
_buffercanvas.unlock();
if ( _step % 1 == 0 ) AddShine();
_step++;
// 波Map更新
Wave();
}
private function AddShine() : void
{
var shine:ShineParticle = new ShineParticle();
var angle:Number = Math.random() * 360;
var len:Number = Math.random() * 40;
var x:Number = Math.cos( angle * Math.PI / 180 ) * len + SUN_X;
var y:Number = Math.sin( angle * Math.PI / 180 ) * len + SUN_Y;
shine.x = x;
shine.y = y;
_shinelist.push( shine );
}
private function Wave() : void
{
_waveOffset.x += 2;
_waveOffset.y += 2;
_wave.perlinNoise(
50,
50,
1,
128,
true,
true,
1,
false,
[_waveOffset]
);
}
}
}
import flash.display.Shape;
const WIDTH:Number = 465;
const HEIGHT:Number = 465;
class ShineParticle {
public var x:Number;
public var y:Number;
public var size:Number;
public var life:Number;
public var shape:Shape;
public function ShineParticle() {
size = Math.random() * 10 + 1;
life = Math.random() * 30 + 20;
x = 0;
y = 0;
shape = new Shape();
shape.graphics.beginFill( 0xFFFFFF );
shape.graphics.drawCircle( 0, 0, size );
shape.graphics.endFill();
}
public function Update() : void
{
life--;
}
}