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homedecor_modpack/lib_6d.lua

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-- Simplified 6d facedir rotation/prediction library
-- by VanessaE
-- license: WTFPL
lib_6d = {}
local dirs1 = { 20, 23, 22, 21 }
local dirs2 = { 9, 18, 7, 12 }
function lib_6d:rotate_and_place(itemstack, placer, pointed_thing, infinitestacks)
local node = minetest.get_node(pointed_thing.under)
if not minetest.registered_nodes[node.name] or not minetest.registered_nodes[node.name].on_rightclick then
local above = pointed_thing.above
local under = pointed_thing.under
local pitch = placer:get_look_pitch()
local pname = minetest.get_node(under).name
local node = minetest.get_node(above)
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local wield_name = itemstack:get_name()
if not minetest.registered_nodes[pname]
or not minetest.registered_nodes[pname].on_rightclick then
local iswall = (above.x ~= under.x) or (above.z ~= under.z)
local isceiling = (above.x == under.x) and (above.z == under.z) and (pitch > 0)
local pos1 = above
if minetest.registered_nodes[pname]["buildable_to"] then
pos1 = under
iswall = false
end
if not minetest.registered_nodes[minetest.get_node(pos1).name]["buildable_to"] then return end
if iswall then
minetest.add_node(pos1, {name = wield_name, param2 = dirs2[fdir+1] }) -- place wall variant
elseif isceiling then
minetest.add_node(pos1, {name = wield_name, param2 = 20 }) -- place upside down variant
else
minetest.add_node(pos1, {name = wield_name, param2 = 0 }) -- place right side up
end
if not infinitestacks then
itemstack:take_item()
return itemstack
end
end
else
minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack)
end
end