First and foremost, is the title a Steely Dan reference? I really enjoyed this even though I sucked at it. Eventually got into a bit of a groove switching my tools and zooming up and down trying to keep each row occupied. Obviously this would have been out of scope for a jam, and sort of goes against the design element of things ramping up more and more, but I was wishing I could buy something that could be placed and auto-shoot certain projectiles on a row, or get the ability to chain shots, so like shoot the pickaxe and that automatically shoots a cart right behind it.
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lol it actually is a song references, just to "You're So Vain" by Carly Simon instead of "Your Gold Teeth". Autoshoot would have been cool and I did think about an upgraded where you would put a miner on a row and he would send out tools for you (albeit not as well as if you were choosing them yourself). The chain shots would have required a complete rework of the code, cause currently each row is assigned a tool when you send it out, and that tool id only can fill one index. I could have built a queue array that feeds into the active array, but seemed like a whole lot of work.