arrows to move click to plant click open UI to see cash and seeds
update log v0 share v0.0.1 add a sign v0.1 add plant system,cash and backpack v0.2 add shop v0.2.1 can open or close UI now v0.3 shop change to UI v0.3.1 touch water will die v0.4 state system v0.4.1 add potato
