A GUI box node with "Clipping mode" set to "STENCIL". This makes it mask its child node (which is called "bunny").
function init(self) local bunny = gui.get_node("bunny") gui.animate(bunny, "position.x", 150, gui.EASING_INOUTSINE, 3, 0, null, gui.PLAYBACK_LOOP_PINGPONG) end
If you want to play with these examples, you can get the project on Github.
Do you want to see more examples? Why not write a few yourself and submit a pull request? We love contributions.