[QuickBox2D] Soft Object #4

隣り合う丸は糸でつないで、天井の２点からゴムぶら下げた

by Kay 15 Mar 2010

• Forked from Kay's [QuickBox2D] Soft Object #3
• Diff: 53
• Related works: 20
Embed

/**
 * Copyright Kay ( http://wonderfl.net/user/Kay )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/ewg3
 */

// forked from Kay's [QuickBox2D] Soft Object #3
// forked from Kay's [QuickBox2D] Soft Object #2
// forked from Kay's forked from: QuickBox2D sample
// forked from mash's QuickBox2D sample
/*
 * 隣り合う丸は糸でつないで、天井の２点からゴムぶら下げた
 */
package {
    import flash.display.*;
    import com.actionsnippet.qbox.*;
    import flash.geom.*;
    import flash.events.*;

    public class FlashTest extends MovieClip {
    		private const SW:Number = stage.stageWidth;
    		private const SH:Number = stage.stageHeight;
        private const radius:Number = 1.2;
        private const outRadius:Number = 5;
        private const jHz:Number = 2;
        private const nColor:int = 0xff0000;
        private var outer:Array = new Array();
        private const dotNum:int = 12;
        public function FlashTest() {
            var sim:QuickBox2D = new QuickBox2D(this, { debug:false, gravityX:0, gravityY:0.2 });
            var anchorA:QuickObject = sim.addCircle({x:0,y:-SH/30,width:SH/30, radius:radius, density:0, fillAlpha:0, lineAlpha:0});
            var anchorB:QuickObject = sim.addCircle({x:SH/30,y:-SH/30,width:SH/30, radius:radius, density:0, fillAlpha:0, lineAlpha:0});
            var center:Point = new Point(SW/2/30, SH/2/30);
	        // Outer
            for (var o:int = 0; o < dotNum; o++) {
            		var nR:Number = Math.PI*2/dotNum*o;
	            var dot:QuickObject = sim.addCircle({x:center.x+outRadius*Math.cos(nR), y:center.y+outRadius*Math.sin(nR), radius:radius, fillColor:0xcc9966, lineAlpha:0 });
	            outer.push(dot);
	            if (o > 0) {
		            sim.addJoint({a:outer[o-1].body, b:dot.body, lineAlpha:0});
	            }
	            sim.addJoint({a:dot.body, b:anchorA.body, frequencyHz:jHz, lineAlpha:0});
	            sim.addJoint({a:dot.body, b:anchorB.body, frequencyHz:jHz, lineAlpha:0});
            }
            sim.addJoint({a:outer[dotNum-1].body, b:outer[0].body, frequencyHz:0, lineAlpha:0});
            for (o = 0; o < dotNum; o++) {
            		outer[o].y = 0;
            }
            
            	sim.start();
			sim.mouseDrag();
        }
    }
}