minetest-mods/mesecons
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Code Issues Releases Wiki Activity

Replace mesecon.mergetable (#533)

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Vitaliy
2020-12-19 23:12:00 +03:00
committed by GitHub
parent 397d449f1e
commit 583d2c1441
4 changed files with 35 additions and 8 deletions
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33
mesecons/util.lua
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@ -213,8 +213,9 @@ function mesecon.cmpAny(t1, t2)
return true
end
-- does not overwrite values; number keys (ipairs) are appended, not overwritten
-- Deprecated. Use `merge_tables` or `merge_rule_sets` as appropriate.
function mesecon.mergetable(source, dest)
minetest.log("warning", debug.traceback("Deprecated call to mesecon.mergetable"))
local rval = mesecon.tablecopy(dest)
for k, v in pairs(source) do
@ -227,6 +228,32 @@ function mesecon.mergetable(source, dest)
return rval
end
-- Merges several rule sets in one. Order may not be preserved. Nil arguments
-- are ignored.
-- The rule sets must be of the same kind (either all single-level or all two-level).
-- The function may be changed to normalize the resulting set in some way.
function mesecon.merge_rule_sets(...)
local rval = {}
for _, t in pairs({...}) do -- ignores nils automatically
table.insert_all(rval, mesecon.tablecopy(t))
end
return rval
end
-- Merges two tables, with entries from `replacements` taking precedence over
-- those from `base`. Returns the new table.
-- Values are deep-copied from either table, keys are referenced.
-- Numerical indices aren’t handled specially.
function mesecon.merge_tables(base, replacements)
local ret = mesecon.tablecopy(replacements) -- these are never overriden so have to be copied in any case
for k, v in pairs(base) do
if ret[k] == nil then -- it could be `false`
ret[k] = mesecon.tablecopy(v)
end
end
return ret
end
function mesecon.register_node(name, spec_common, spec_off, spec_on)
spec_common.drop = spec_common.drop or name .. "_off"
spec_common.on_blast = spec_common.on_blast or mesecon.on_blastnode
@ -234,8 +261,8 @@ function mesecon.register_node(name, spec_common, spec_off, spec_on)
spec_on.__mesecon_state = "on"
spec_off.__mesecon_state = "off"
spec_on = mesecon.mergetable(spec_common, spec_on);
spec_off = mesecon.mergetable(spec_common, spec_off);
spec_on = mesecon.merge_tables(spec_common, spec_on);
spec_off = mesecon.merge_tables(spec_common, spec_off);
minetest.register_node(name .. "_on", spec_on)
minetest.register_node(name .. "_off", spec_off)