Mouse Position Gradation

マウス位置グラデーション。
画面の右端で、グラデの左端。
画面の左端で、グラデの右端。

by kawamura 23 Jun 2016

• Related works: 5
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/**
 * Copyright kawamura ( http://wonderfl.net/user/kawamura )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/wNtO
 */

package {
    import flash.display.GradientType;
    import flash.display.Graphics;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.Matrix;
    public class FlashTest extends Sprite {
        private var sprite:Sprite;
        public function FlashTest() {
            // write as3 code here..
            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
            sprite = new Sprite();
            addChild(sprite);
            var g:Graphics;
            g = sprite.graphics;
            var type:String = GradientType.LINEAR;
            var colors:Array = [0x0, 0x0];
            var alphas:Array = [1.0, 0.0];
            var ratios:Array = [0.0, 0xFF];
            var matrix:Matrix = new Matrix();
            matrix.createGradientBox(20, 100, 0.0 * Math.PI, 80, 0);
            g.beginGradientFill(type, colors, alphas, ratios,matrix);
            g.drawRect(0, 0, 100, 100);
            sprite.width = stage.stageWidth;
            sprite.height = stage.stageHeight;
            addEventListener(Event.ENTER_FRAME, enterFrameHandler);
        }
        private function enterFrameHandler(e:Event):void 
        {
            var rate:Number = stage.mouseX / stage.stageWidth;
            var g:Graphics;
            g = sprite.graphics;
            g.clear();
            var type:String = GradientType.LINEAR;
            var colors:Array = [0x0, 0x0];
            var alphas:Array = [1.0, 0.0];
            var ratios:Array = [0.0, 0xFF];
            var matrix:Matrix = new Matrix();
            matrix.createGradientBox(30, 100, 0.0 * Math.PI, -30 + 130*rate, 0);
            g.beginGradientFill(type, colors, alphas, ratios,matrix);
            g.drawRect(0, 0, 100, 100);
        }
    }
}