Actionscript:
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import com.actionsnippet.qbox.*;
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import Box2D.Common.Math.*;
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[SWF (backgroundColor=0xaa0000, width=700, height=600)]
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const TWO_PI:Number = Math.PI * 2;
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var sim:QuickBox2D = new QuickBox2D(this,{gravityY:20, debug:false});
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var i:int = 0;
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// add some circles
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var circles:Array = [];
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var circleNum:int = 20;
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for (i = 0; i<circleNum; i++){
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circles[i] = sim.addCircle({x: 8, y:-2 - i, radius:0.1 + Math.random()*0.4, fillColor:0x000000});
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}
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// add some boxes
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var boxes:Array = [];
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var boxNum:int = 20;
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for (i= 0; i<boxNum; i++){
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var rx:Number = 4 + (i % 5) * 4;
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var ry:Number = 4 + int(i / 5) * 4;
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var ra:Number = Math.random() * TWO_PI;
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boxes[i] = sim.addBox({x:rx, y:ry, width:3, height:0.4, angle:ra, density:0,fillColor:0xFF2200});
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}
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// vector(0,0) used to reset velocity
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var resetVec:b2Vec2 = new b2Vec2();
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sim.start();
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sim.mouseDrag();
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addEventListener(Event.ENTER_FRAME, onLoop);
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function onLoop(evt:Event):void {
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// rotate all boxes
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for (i= 0; i<boxNum; i++){
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boxes[i].angle += .05;
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}
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// move circles to top of sceen after they fall off bottom
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for (i= 0; i<circleNum; i++){
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if (circles[i].y> 20){
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circles[i].y = -1;
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circles[i].x = Math.random()*(stage.stageWidth / 30 - 9) + 4;
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// access to Box2D b2Body methods
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circles[i].body.SetLinearVelocity(resetVec);
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}
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}
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}
This is another QuickBox2D experiment. If you don't know what QuickBox2D is ... read about it here.
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