Simple tower defense game in vanilla javascript

In brief: your mission is preventing enemies from reaching exit point!

There is 2 types of enemies (for now):

Tanks - High hp, low movement speed
Fast - Low hp, Fast movement speed

Live game:

https://patryk-rozwadowski.github.io/Tower_defense_game/

Todo:

Add collision detection for mobs
Finish A* algorithm for path finding
Add more turrets/mobs types
Add server / database for player leaderboards
Add mob's wave generator
Multiplayer (?)
More UI features