package { import flash.display.*; import com.actionsnippet.qbox.*; public class FlashTest extends MovieClip { public function FlashTest() { // write as3 code here.. stage.frameRate = 60; var sim:QuickBox2D = new QuickBox2D(this); sim.createStageWalls(); sim.addBox({x:5, y:5, width:1, height:1}); sim.addCircle({x:4, y:8, radius:2}); sim.start(); sim.mouseDrag(); } } } QuickBox2D sample