if (!isObject(bunnyBehavior))
{
   %template = new BehaviorTemplate(bunnyBehavior);

   %template.friendlyName = "Bunny Behavior";
   %template.behaviorType = "Player Behavior";

   %template.addBehaviorField(yVelocity, "The object's vertical speed", float, 5.0);
}

function bunnyBehavior::onLevelLoaded(%this)
{
   //moveMap is already defined in another place, and function call does work
   moveMap.bindCmd(keyboard, "space", "bunnyBehavior.jump(1);", "");
}

function bunnyBehavior::jump(%value)
{
   //line below gives me junk data
   echo("yVelocity is" @ %this.yVelocity);
}