QuickBox2D Connect to GroundBody

import com.actionsnippet.qbox.*;

[SWF (backgroundColor=0x000000, width=700, height=600)]

var sim:QuickBox2D = new QuickBox2D(this);

sim.setDefault({fillColor:0x113366, fillAlpha:0.8, lineColor:0x3355AA});

sim.createStageWalls();

var boxA:QuickObject = sim.addBox({x:10, y:8, width:4, height:0.5, angularDamping:1});
var boxB:QuickObject = sim.addBox({x:7, y:8, width:3, height:0.25, angle:-.5, angularDamping:1});
var boxC:QuickObject = sim.addBox({x:12, y:2, width:2, height:1});

var rev:QuickObject = sim.addJoint({type:"revolute", a:boxA.body, b:sim.w.GetGroundBody()});
// add a red dot to boxA
with (boxA.userData.graphics) lineStyle(), beginFill(0xFF0000), drawCircle(0,0,2);

var rev2:QuickObject = sim.addJoint({type:"revolute", a:boxB.body, b:sim.w.GetGroundBody()});
with (boxB.userData.graphics) lineStyle(), beginFill(0xFF0000), drawCircle(0,0,2);

sim.start();
sim.mouseDrag();

In order to use gear joints (covered in tomorrows post) you’ll need to know how to connect to the ground body…

Check out the swf…