<p>Please click into this link first</p><p>https://circuits.io/circuits/1023084-arduino-lcd-game?</p><p>After a minite, you will see a button "Code Editor" and clickit.</p><p>Could you explain the following code:</p><p>#define SPRITE_RUN1 1<br/>#define SPRITE_RUN2 2<br/>#define SPRITE_JUMP 3<br/>#define SPRITE_JUMP_UPPER '.'