Hopefully-added, mostly-planned features

[pipliz]

Features that are more like to get added than the ones in #320 , but which currently don't have a set plan for when.

• Transparency. Of the water kind. Would really improve water graphics and also allow a decent implementation of glass. Complicated to make work with the torch/sun lighting and multiple layers
• Wipe recovery mechanic. Some way to stores a backup of stuff such than on wiping you can recover (but without it being too OP, it should still be costly). Something more "native" to the game than bread crates.