diff --git a/mods/stairs/init.lua b/mods/stairs/init.lua
index 78922e4..132c0e6 100644
--- a/mods/stairs/init.lua
+++ b/mods/stairs/init.lua
@@ -110,6 +110,11 @@ function stairs.register_stair(subname, recipeitem, groups, images, description,
end
+-- Slab facedir to placement 6d matching table
+local slab_trans_dir = {[0] = 8, 0, 2, 1, 3, 4}
+-- Slab facedir when placing initial slab against other surface
+local slab_trans_dir_place = {[0] = 0, 20, 12, 16, 4, 8}
+
-- Register slabs.
-- Node will be called stairs:slab_<subname>
@@ -129,86 +134,61 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
},
on_place = function(itemstack, placer, pointed_thing)
- if pointed_thing.type ~= "node" then
- return itemstack
- end
+ local under = minetest.get_node(pointed_thing.under)
+ local wield_item = itemstack:get_name()
- -- If it's being placed on an another similar one, replace it with
- -- a full block
- local slabpos = nil
- local slabnode = nil
- local p0 = pointed_thing.under
- local p1 = pointed_thing.above
- local n0 = minetest.get_node(p0)
- local n1 = minetest.get_node(p1)
- local param2 = 0
+ if under and wield_item == under.name then
+ -- place slab using under node orientation
+ local dir = minetest.dir_to_facedir(vector.subtract(
+ pointed_thing.above, pointed_thing.under), true)
- local n0_is_upside_down = (n0.name == "stairs:slab_" .. subname and
- n0.param2 >= 20)
+ local p2 = under.param2
- if n0.name == "stairs:slab_" .. subname and not n0_is_upside_down and
- p0.y + 1 == p1.y then
- slabpos = p0
- slabnode = n0
- elseif n1.name == "stairs:slab_" .. subname then
- slabpos = p1
- slabnode = n1
- end
- if slabpos then
- -- Remove the slab at slabpos
- minetest.remove_node(slabpos)
- -- Make a fake stack of a single item and try to place it
- local fakestack = ItemStack(recipeitem)
- fakestack:set_count(itemstack:get_count())
-
- pointed_thing.above = slabpos
- local success
- fakestack, success = minetest.item_place(fakestack, placer,
- pointed_thing)
- -- If the item was taken from the fake stack, decrement original
- if success then
- itemstack:set_count(fakestack:get_count())
- -- Else put old node back
- else
- minetest.set_node(slabpos, slabnode)
- end
- return itemstack
- end
-
- -- Upside down slabs
- if p0.y - 1 == p1.y then
- -- Turn into full block if pointing at a existing slab
- if n0_is_upside_down then
- -- Remove the slab at the position of the slab
- minetest.remove_node(p0)
- -- Make a fake stack of a single item and try to place it
- local fakestack = ItemStack(recipeitem)
- fakestack:set_count(itemstack:get_count())
-
- pointed_thing.above = p0
- local success
- fakestack, success = minetest.item_place(fakestack, placer,
- pointed_thing)
- -- If the item was taken from the fake stack, decrement original
- if success then
- itemstack:set_count(fakestack:get_count())
- -- Else put old node back
- else
- minetest.set_node(p0, n0)
+ -- combine two slabs if possible
+ if slab_trans_dir[math.floor(p2 / 4)] == dir then
+ if not recipeitem then
+ return itemstack
+ end
+ local player_name = placer:get_player_name()
+ if minetest.is_protected(pointed_thing.under, player_name) and not
+ minetest.check_player_privs(placer, "protection_bypass") then
+ minetest.record_protection_violation(pointed_thing.under,
+ player_name)
+ return
+ end
+ minetest.set_node(pointed_thing.under, {name = recipeitem, param2 = p2})
+ if not minetest.setting_getbool("creative_mode") then
+ itemstack:take_item()
end
return itemstack
end
- -- Place upside down slab
- param2 = 20
- end
+ -- Placing a slab on an upside down slab should make it right-side up.
+ if p2 >= 20 and dir == 8 then
+ p2 = p2 - 20
+ -- same for the opposite case: slab below normal slab
+ elseif p2 <= 3 and dir == 4 then
+ p2 = p2 + 20
+ end
- -- If pointing at the side of a upside down slab
- if n0_is_upside_down and p0.y + 1 ~= p1.y then
- param2 = 20
- end
+ -- else attempt to place node with proper param2
+ minetest.item_place_node(ItemStack(wield_item), placer, pointed_thing, p2)
+ if not minetest.setting_getbool("creative_mode") then
+ itemstack:take_item()
+ end
+ return itemstack
+ else
+ -- place slab using look direction of player
+ local dir = minetest.dir_to_wallmounted(vector.subtract(
+ pointed_thing.above, pointed_thing.under), true)
- return minetest.item_place(itemstack, placer, pointed_thing, param2)
+ local rot = slab_trans_dir_place[dir]
+ if rot == 0 or rot == 20 then
+ rot = rot + minetest.dir_to_facedir(placer:get_look_dir())
+ end
+
+ return minetest.item_place(itemstack, placer, pointed_thing, rot)
+ end
end,
})