There is one game object containing the background sprite. It is set at Z position 0. The bunny is another game object containing a sprite. The bunny game object is at Z position 1.
function init(self) go.animate(".", "position.x", go.PLAYBACK_LOOP_PINGPONG, 600, go.EASING_INOUTSINE, 3) -- <1> end --[[ 1. Animate the game object's ("." is shorthand for the current game object) x position between start position and 600. --]]
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