Furnace: Improve fuel item replacement support

The output returned by `get_craft_result` has a replacements table that
contains any replacement items that could not be placed in the input
(due to the input stack having a count > 1). Put these replacements in
the dst list or drop them on the furnace.

diff --git a/mods/default/furnace.lua b/mods/default/furnace.lua
index e045080a51c60e04c19509c589680d5d280b9bc1..cd48923ce9ec56f03b868345f1995bbcf49b524b 100644 (file)
--- a/mods/default/furnace.lua
+++ b/mods/default/furnace.lua
@@ -98,7 +98,7 @@ end
 
 local function furnace_node_timer(pos, elapsed)
        --
-       -- Inizialize metadata
+       -- Initialize metadata
        --
        local meta = minetest.get_meta(pos)
        local fuel_time = meta:get_float("fuel_time") or 0
@@ -169,6 +169,16 @@ local function furnace_node_timer(pos, elapsed)
                                else
                                        -- Take fuel from fuel list
                                        inv:set_stack("fuel", 1, afterfuel.items[1])
+                                       -- Put replacements in dst list or drop them on the furnace.
+                                       local replacements = fuel.replacements
+                                       if replacements[1] then
+                                               local leftover = inv:add_item("dst", replacements[1])
+                                               if not leftover:is_empty() then
+                                                       local above = vector.new(pos.x, pos.y + 1, pos.z)
+                                                       local drop_pos = minetest.find_node_near(above, 1, {"air"}) or above
+                                                       minetest.item_drop(replacements[1], nil, drop_pos)
+                                               end
+                                       end
                                        update = true
                                        fuel_totaltime = fuel.time + (fuel_totaltime - fuel_time)
                                end