diff options
Diffstat (limited to 'node_builders.lua')
| -rw-r--r-- | node_builders.lua | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/node_builders.lua b/node_builders.lua index b8218b7..52fee0b 100644 --- a/node_builders.lua +++ b/node_builders.lua @@ -99,6 +99,12 @@ minetest.register_node("digtron:builder", { -- return the item you took and the inventory location you took it from so it can be put back after all the other builders have been tested. -- If you couldn't get the item from inventory, return an error code so we can abort the cycle. -- If you're not supposed to build at all, or the location is obstructed, return 0 to let us know you're okay and we shouldn't abort." + + --return code and accompanying value: + -- 0, nil -- not supposed to build, no error + -- 1, {itemstack, source inventory pos} -- can build, took an item from inventory + -- 2, itemstack -- was supposed to build, but couldn't get the item from inventory + -- 3, nil -- builder configuration error test_build = function(pos, test_pos, inventory_positions, protected_nodes, nodes_dug, controlling_coordinate, controller_pos) local meta = minetest.get_meta(pos) local facing = minetest.get_node(pos).param2 @@ -106,7 +112,7 @@ minetest.register_node("digtron:builder", { if (buildpos[controlling_coordinate] + meta:get_string("offset")) % meta:get_string("period") ~= 0 then --It's not the builder's turn to build right now. - return 0 + return 0, nil end if not digtron.can_move_to(buildpos, protected_nodes, nodes_dug) then @@ -120,7 +126,7 @@ minetest.register_node("digtron:builder", { --managed one more cycle. That's not a bad outcome for a digtron array that was built stupidly to begin with. --The player should be thanking me for all the error-checking I *do* do, really. --Ungrateful wretch. - return 0 + return 0, nil end local inv = minetest.get_inventory({type="node", pos=pos}) @@ -136,11 +142,11 @@ minetest.register_node("digtron:builder", { end local source_location = digtron.take_from_inventory(item_stack:get_name(), inventory_positions) if source_location ~= nil then - return {item=item_stack, location=source_location} + return 1, {item=item_stack, location=source_location} end - return 2 -- error code for "needed an item but couldn't get it from inventory" + return 2, item_stack -- error code for "needed an item but couldn't get it from inventory" else - return 1 -- error code for "this builder's item slot is unset" + return 3, nil -- error code for "this builder's item slot is unset" end end, |