add cod bucket

cod_bucket.lua

@@ -0,0 +1,39 @@
+local S = minetest.get_translator("extra_mobs")
+
+mcl_buckets.register_liquid({
+    source_place = "mcl_core:water_source",
+    source_take = {"mcl_core:water_source"},
+    itemname = "extra_mobs:cod_bucket",
+    inventory_image = "bucket_water.png^cod_bucket.png",
+    name = S("Cod Bucket"),
+    longdesc = S("This bucket can be used to release a cod. It is filled with water."),
+    usagehelp = S("Place it to empty the bucket, create a water source and release a cod."),
+    tt_help = S("Places a water source and cod"),
+    extra_check = function(pos, placer)
+        minetest.add_entity(pos, "extra_mobs:cod")
+        -- Check protection
+        local placer_name = ""
+        if placer ~= nil then
+            placer_name = placer:get_player_name()
+        end
+        if placer and minetest.is_protected(pos, placer_name) then
+            minetest.record_protection_violation(pos, placer_name)
+            return false
+        end
+        local nn = minetest.get_node(pos).name
+        if minetest.get_item_group(nn, "cauldron") ~= 0 then
+            -- Put water into cauldron  TODO: remove second source
+            if nn ~= "mcl_cauldrons:cauldron_3" then
+                minetest.set_node(pos, {name="mcl_cauldrons:cauldron_3"})
+            end
+        -- Evaporate water if used in Nether (except on cauldron)
+        else
+            local dim = mcl_worlds.pos_to_dimension(pos)
+            if dim == "nether" then
+                minetest.sound_play("fire_extinguish_flame", {pos = pos, gain = 0.25, max_hear_distance = 16}, true)
+                return false
+            end
+        end
+    end,
+    groups = { water_bucket = 1 },
+})