Minetest game's doors mod was known to cause server errors when passed a nil digger in it's can_dig callback,
due to always attempting to invoke digger:get_player_name().
Fix this by providing a basic fake player which provides this method to can_dig callbacks.
(It should be noted that currently this fix causes doors to be undiggable by quarries.)
model includes a flat extension on one "side" to fix #342
rotate the reactor with the screwdriver with shift-right-click before filling, to
line up the flat side with your cabling. Note that the reactor doesn't actually
care which side the cable comes from.
delete back/bottom texture for power monitor
use "machine bottom" for bottom of force field generator
add cable connection overlay, use it on various machines' bottoms/sides, as appropriate
Radiation now slowly damages you for a while after exposure,
with the effect's time and intensity proportional to the
amount of radiation received. The radioactivity of some
items is reduced to account for the increased damage.
This simplifies radioactivity by removing the 1000 and 0.25 multipliers.
It also increases the effectiveness of protection (I think it was too low
before -- most of the advantage of adding protective layers was just from
the increased distance).
The reactor originaly used a stainless steel shield only
because lead wasn't yet available. Stainless steel shields
are automatically converted to lead shields for legacy reasons.
Changes:
* Make rayIter a global utility, and use it for radiation too.
* prettynum -> pretty_num and cleanup.
* Remove resolve_name/function_exists (unused).
* Cleanup nuclear reactor code.
Adds a cache to the quarry in order to reduce load and send larger stacks through pipes instead of just single items. Coin tossing ensures the cache gets purged around every 200 seconds. The interval isn't fixed in order to prevent material spikes from multiple quarries which got loaded simultaneously. When the cache is full, or the quarry finished, it is purged too.
Don't load the whole digging area when only a small piece is relevant.
Also, move the (time expensive) check whether the air above a block is free to the last position, which spares unneccessary checks when multiple quarries are placed together, or a quarry has to loop over air for another reason.
Squeeze the range of material shielding values. The strongest shielding
materials get weaker, and weaker shielding materials, especially low-end
ones such as dirt, get stronger. The radioactivity of the active
reactor core is increased so that the standard shielding is (still)
only narrowly sufficient.
Make the "radioactive" group value be the safe distance in millimeters
rather than meters, to allow for intermediate values. Use such
intermediate values for the uranium blocks, using the existing formula
with this finer quantisation. All other radioactive nodes retain their
existing radioactivity exactly.
