Cannons and Pulse Lasers don't shoot through more than one block.

Before the patch last night that made it to where cannons and pulses false fired or failed to fire less often despite being able to fire, cannons were able to fire through two blocks. After the patch cannons only fire through a single block, and this is likely due to the fact that the projectile now originates at the sponge instead of the at the end of the cannon, though I can't be certain.