Tower Defence Game

This is a tower defence game that I started back in February of 2017, which I rediscovered and am rewriting here in late 2018. It is very similar to Balloons Tower Defence, so if you played that game before it should be pretty natural. There are two tabs on the right side of the screen. The top is the tower menu, and the second is the upgrades menu. There are four upgrades currently programmed in, and each tower can be upgraded up to four times.

To place a tower, go to the Towers menu, click a tower, and click where you want to place it. The bubble surrounding the tower represents its attack range. To upgrade a tower, go to the upgrades menu and click on the upgrade you want, and it should show you the nearest available tower, just go near your tower and click again. If you click on either of these but decide that you don't actually want it, simply drag it into the red X on the bottom right of the screen. To sell the tower, highlight it and press backspace.

Towers:
-Basic tower
-Octo-shot: Shoots out 8 bullets at once, but has half the reload speed and range, and double the cost
-Catapult: Like the basic tower but double the damage and range
-Lightning Cannon: Shoots really fast
-Split Cannon: Bullet splits into 8 separate bullets upon contact
-Bank: Generates money every turn
-Hospital: Generates life every turn
-Thunder Cannon: Lightning cannon, but with double range
-Super split cannon: Bullets split into 8, which each split into 8 more bullets (73 total bullets)

Upgrades:
-Range: Increase range by 50
-Lightning: Increase speed by a factor of 0.75
-Damage: Increase damage by 1
-Gen: Increase life or money generation by 25%

Things here are very unbalanced (tower costs, waves, upgrade mechanic, etc.) but I'm working on that.
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