package { import flash.display.*; public class FlashTest extends MovieClip { import com.actionsnippet.qbox.*; public function FlashTest() { // write as3 code here.. var sim:QuickBox2D = new QuickBox2D(this); sim.createStageWalls(); var circleA:QuickObject = sim.addCircle({x:3, y:3, radius:1}); var circleB:QuickObject = sim.addCircle({x:6, y:6, radius:0.5});   var j:QuickObject = sim.addJoint({type:"distance", a:circleA.body, b:circleB.body}); /* j.userData.graphics.clear(); j.userData.graphics.lineStyle(2,0xFF0000); j.userData.graphics.lineTo(50,20); j.userData.graphics.lineTo(100,100)*/   sim.start(); sim.mouseDrag(); } } }