The drills weren't taking the variable usage cost into account (either
the per-type base cost or the per-mode multiplier) when deciding whether
they have sufficient charge to use. This could cause them to overshoot in
charge usage, although they would then clamp to zero rather than record
negative charge. Also, for the Mk1 drill where the cost was assessed
correctly, the drill would refuse to discharge to exactly zero charge.
The message to "hold shift" makes an unwarranted assumption about the
user's keybindings. Messages from the server should refer to a key's
game function, rather than its extragame identity.
Disable the flashlight by default.
Use itemstack:{get,set}_{metadata,name,wear,...} rather than {to,from}_table.
Improve the style of part of the code of mischelaneous tools
Theyre already tiered with Mk1-3 (at least drill is, more in the future).
Tools can be considered as designed for different tiers of circuits thx to their power needs.
For example Mk3 will require ages to load in LV batbox.
Batboxes load tools timining: LV standard (1000EU), MV 4x faster (4000EU), HV 16x faster (16000EU)
Also since 1EU is the same in any circuit it is possible to move energy from one to another with portable devices like crystals.
Other changes:
- moved charge/discharge functions to battery_boxes_commons.lua
- added UI style backgrounds for all the batboxes