Green flag to inizialize Arrows to move the dog and make the sheeps follow you
GU prompts for this week put me into real trouble sometimes because they asked me to use things and blocks that I always use (like variables, lists and random blocks) making me scream "noooo, not a prompt about random blocks! I used them yesterday and the day before". So I spent two days thinking about lists (and still I'm thinking about how to use variables) then I came up with the idea of reproducing the "Snake" game (basically because I did it once in python + minecraft) but @AngelaSofiaRobotics proposed to do it with dogs and sheeps. The dog is a cat, the sheep is a sheep because @AngelaSofiaRobotics was so kind to modify the mouse sprite. The basic functionality is there: positions are added to lists and clones go to the position of the sheep in front of them but there is still some work to do since they point in the wrong direction as they move and they are a bit too close one another (no social distancing for sheeps). I plan to work more on this later and actually writing this notes geve me an idea for the #8 prompt...
