var bounceScript = (function () { this.clickDownOnEntity = function (entityID, mouseEvent) {
            Entities.editEntity(entityID, {
                velocity: { x: Math.random()*2, y: 5+Math.random()*10, z: Math.random()*2},
                angularVelocity: { x: Math.random()*10, y: Math.random()*10, z: Math.random()*10}
            });
          }
        })