Some very minor balance changes and adjustments:
Overhauled tower cooldown code so that it is more consistent at variable framerates
this actually buffs all towers very slightly. About 10% of the time at normal framerates, towers would take an extra frame to fire. So this will shave off that one frame in those cases.
This also buffs towers MUCH more if game framerate was lower. In some cases. towers would fire 25% slower than intended - This fix will improve tower performance a lot in those cases.
this should also make performance consistent on tutorial levels, especially tutorial 3, which was previously heavily affected by this issue.
also improved tower rotation speed consistency at variable framerates
all towers, upon first being built, have 0.5 seconds left in their cooldown (up from 0.2 seconds)
all towers come off of cooldown when a wave ends
Some additional minor fixes:
fixed issue where poison clouds would persist between waves.
fixed issue where poison damage would underreport damage numbers against targets affected by chemical warfare debuff
Let me know if you still run into any problems in the tutorials, or elsewhere.
Gabriel