Redstone comparators have two modes, comparison mode & subtraction mode.
Before this patch, the functions to turn comparators on or off attempted
to swap nodes with comparators in the same mode, but failed to determine
the correct replacement node, if the existing node was not a comparator.
When a comparator in an on state (e.g. powered by a filled cauldron) was
flooded, the flooding dropped the comparator and replaced the comparator
node that was to be swapped out with air, which lead to a server crash.
This patch changes the functions that turn comparators on or off so they
only swap existing nodes with comparators in the same mode if the name
of the replacement node can be determined – i.e. if it is not nil.
In commit 55009c257e253c49dacf017e4bd56bc36aca2e10 that added vectors to
mcl_composters, mcl_hoppers was accidentally patched with a unrelated
change, updating it to get_item_group(). This mostly works, but in one
particular case the semantics of the return value differs. Instead of
returning 'nil' it returns '0'. That altered the evaluation of an if
condition, breaking the abm that sucks in items.
This commit fixes the conditional by explicitly comparing '~= 0'.
The function on_place_bucket defined a couple of variables that were
used only once or in a redundant check. After removal of the redundant
check in a previous commit, all use-once variables can now be substituted
with their assignment expressions.
The function on_place_bucket contains the following logic:
if not a and not b then return x end
if a then
foo(a)
elseif b then
foo(b)
else
return x
end
The "if not a and not b then .." is removed because the case is handled
by the else case later on. This will allow some further simplifications.
Instead of directly accessing the group table in node definitions, use
the proper minetest.get_item_group accessor to test for "cauldron"
group.
Also adds local alias get_item_group for the global minetest call.
Two instances of add_node and add_item still used the full minetest
call, substitute the alias.
Added a set_node alias for several minetest.set_node calls.
When using a bucket of water on a cauldron, this would not fill the
cauldron as expected, but deposit a water source block on top of the
cauldron instead.
Applied patch from mineclone5 #38 (commit #
698c29733f06a7fcb7e755bf26ee46b33b00699b) from mineclone5 that fixes
this problem.
Implements a composter block with crafting recipe, and some more
uncraftable blocks representing various stages of filling.
Adds a list of items that can be used with the composter and the chances
of these items adding a layer to the composter.
Implements methods to add compostable items to the composter, to update
the composter to various levels of compost and to harvest an item of
bone meal when the composter is ready.
Textures were taken from XSSheep/Nova_Wostra Pixel Perfection texture
pack.
