mcl_walls = {} local function rshift(x, by) return math.floor(x / 2 ^ by) end local directions = { {x = 1, y = 0, z = 0}, {x = 0, y = 0, z = 1}, {x = -1, y = 0, z = 0}, {x = 0, y = 0, z = -1}, {x = 0, y = -1, z = 0}, } local function update_wall(pos) local thisnode = minetest.get_node(pos) if minetest.get_item_group(thisnode.name, "wall") == 0 then return end -- Get the node's base name, including the underscore since we will need it local colonpos = thisnode.name:find(":") local underscorepos local itemname, basename, modname if colonpos ~= nil then itemname = thisnode.name:sub(colonpos+1) modname = thisnode.name:sub(1, colonpos-1) end underscorepos = itemname:find("_") if underscorepos == nil then -- New wall basename = thisnode.name .. "_" else -- Already placed wall basename = modname .. ":" .. itemname:sub(1, underscorepos) end local sum = 0 -- Neighbouring walkable nodes for i = 1, 4 do local dir = directions[i] local node = minetest.get_node({x = pos.x + dir.x, y = pos.y + dir.y, z = pos.z + dir.z}) if minetest.registered_nodes[node.name].walkable then sum = sum + 2 ^ (i - 1) end end -- Torches or walkable nodes above the wall local upnode = minetest.get_node({x = pos.x, y = pos.y+1, z = pos.z}) if sum == 5 or sum == 10 then if minetest.registered_nodes[upnode.name].walkable or upnode.name == "mcl_torches:floor" then sum = sum + 11 end end --[[if sum == 0 then sum = 15 end]] minetest.add_node(pos, {name = basename..sum}) end local function update_wall_global(pos) for i = 1,5 do local dir = directions[i] update_wall({x = pos.x + dir.x, y = pos.y + dir.y, z = pos.z + dir.z}) end end local half_blocks = { {4/16, -0.5, -3/16, 0.5, 5/16, 3/16}, {-3/16, -0.5, 4/16, 3/16, 5/16, 0.5}, {-0.5, -0.5, -3/16, -4/16, 5/16, 3/16}, {-3/16, -0.5, -0.5, 3/16, 5/16, -4/16} } local pillar = {-4/16, -0.5, -4/16, 4/16, 0.5, 4/16} local full_blocks = { {-0.5, -0.5, -3/16, 0.5, 5/16, 3/16}, {-3/16, -0.5, -0.5, 3/16, 5/16, 0.5} } --[[ Adds a new wall type. * nodename: Itemstring of base node. Must not contain an underscore * name: Item name, visible to user * tiles: Wall textures table * invtex: Inventory image (optional) ]] function mcl_walls.register_wall(nodename, name, tiles, invtex) for i = 0, 15 do local need = {} local need_pillar = false for j = 1, 4 do if rshift(i, j - 1) % 2 == 1 then need[j] = true end end local take = {} if need[1] == true and need[3] == true then need[1] = nil need[3] = nil table.insert(take, full_blocks[1]) end if need[2] == true and need[4] == true then need[2] = nil need[4] = nil table.insert(take, full_blocks[2]) end for k in pairs(need) do table.insert(take, half_blocks[k]) need_pillar = true end if i == 15 or i == 0 then need_pillar = true end if need_pillar then table.insert(take, pillar) end minetest.register_node(nodename.."_"..i, { collision_box = { type = 'fixed', fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16} }, drawtype = "nodebox", is_ground_content = false, tiles = tiles, paramtype = "light", groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3,wall=1,not_in_creative_inventory=1}, drop = nodename, node_box = { type = "fixed", fixed = take }, sounds = mcl_sounds.node_sound_stone_defaults(), }) end minetest.register_node(nodename.."_16", { drawtype = "nodebox", collision_box = { type = 'fixed', fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16} }, tiles = tiles, paramtype = "light", is_ground_content = false, groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3,wall=1,not_in_creative_inventory=1}, drop = nodename, node_box = { type = "fixed", fixed = {pillar, full_blocks[1]} }, sounds = mcl_sounds.node_sound_stone_defaults(), }) minetest.register_node(nodename.."_21", { drawtype = "nodebox", collision_box = { type = 'fixed', fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16} }, tiles = tiles, paramtype = "light", is_ground_content = false, groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3,wall=1,not_in_creative_inventory=1}, drop = nodename, node_box = { type = "fixed", fixed = {pillar, full_blocks[2]} }, sounds = mcl_sounds.node_sound_stone_defaults(), }) -- Inventory item minetest.register_node(nodename, { description = name, paramtype = "light", is_ground_content = false, groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3,wall=1,deco_block=1}, tiles = tiles, inventory_image = invtex, stack_max = 64, drawtype = "nodebox", node_box = { type = "fixed", fixed = pillar }, collision_box = { type = 'fixed', fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16} }, collisionbox = {-0.2, 0, -0.2, 0.2, 1.4, 0.2}, on_construct = update_wall, sounds = mcl_sounds.node_sound_stone_defaults(), }) end -- Cobblestone wall mcl_walls.register_wall("mcl_walls:cobble", "Cobblestone Wall", {"default_cobble.png"}, "mcl_walls_cobble.png") minetest.register_craft({ output = 'mcl_walls:cobble 6', recipe = { {'mcl_core:cobble', 'mcl_core:cobble', 'mcl_core:cobble'}, {'mcl_core:cobble', 'mcl_core:cobble', 'mcl_core:cobble'} } }) -- Mossy wall mcl_walls.register_wall("mcl_walls:mossycobble", "Mossy Cobblestone Wall", {"default_mossycobble.png"}, "mcl_walls_mossycobble.png") minetest.register_craft({ output = 'mcl_walls:mossycobble 6', recipe = { {'mcl_core:mossycobble', 'mcl_core:mossycobble', 'mcl_core:mossycobble'}, {'mcl_core:mossycobble', 'mcl_core:mossycobble', 'mcl_core:mossycobble'} } }) minetest.register_on_placenode(update_wall_global) minetest.register_on_dignode(update_wall_global)