Currently light is obsolote
Mining helm, torches, candles are decorations only
Proposal is simple
Source of light in caves should :
- speed up mining (because you can see what to mine)
- improve quality of mining (because you can see how to mine to get best chunks)
- decrease strength required to mine particular tile (because you can spot and chip weakest area)
- allow to pick up new things in caves (because you cannot spot them without the light)
Cave hermit should have all these bonuses without light