Add an IsPumping bool field to Player, use this to lower the water level.
Add an IsPumping bool field to Player, use this to lower the water level.
Revert "Add an IsPumping bool field to Player, use this to lower the water level."

This reverts commit 226ca0129d5e8a69d512b1e460eae5637d1ec8e4.
Make sure Level's WaterAccumulation field never dips below 0.
Merge branch 'master' of github.com:kurrik/ld29