v.1 Game Vision
v.2 create settings
v.3 leaderboard
v.4 Track player gold
v.5 Track items and spaces
v.6 build an item
v.7 create tools
starter tool
v.8 if harvestable
v.9 get leaderboard stats
v.10 add item's value
v.11 reset item
v.12 create sell platform
v.14 finishing touch event
v.13 create touch event
v.15 sell function
v.16 create shop
v.18 add click detector
v.20 test and debug
v.17 change sign text
v.19 grant upgrade
v.21 finishing the project (final)