code drawing 85c, various states, created on or about 2015-07-02. I began to constrain the composition within the frame, rather than allow it to build all the way to the edges. Hopscotch doesn’t want to let a sprite go outside the margins of the iPad screen so a novice won’t lose a sprite in the boundless mathematical universe outside of the visible frame. the program clamps movement of any entity to within this 1024 x 768 frame, even after the availability of the retina display doubled the resolution to 2048 x 1536. the makers of Hopscotch round the values when they speak in their videos to “about 1000 x 800”. this feels as though they don’t have confidence in their audience to be precise.