Rename wallet mod to mcl_walls

mods/mcl_walls/depends.txt

@@ -0,0 +1 @@
+default

mods/mcl_walls/init.lua

@@ -0,0 +1,218 @@
+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
+	if colonpos ~= nil then
+		itemname = thisnode.name:sub(colonpos+1)
+	end
+	minetest.log("error", itemname)
+	underscorepos = itemname:find("_")
+	if underscorepos == nil then -- New wall
+		basename = thisnode.name .. "_"
+	else -- Already placed wall
+		basename = "mcl_walls:" .. itemname:sub(1, underscorepos)
+	end
+	minetest.log("error", basename)
+
+	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 == "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
+* texture: Wall texture
+* invtex: Inventory image ]]
+local function register_wall(nodename, name, texture, 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 = {texture},
+			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 = default.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 = {texture},
+		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 = default.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 = {texture},
+		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 = default.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 = {texture},
+		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 = default.node_sound_stone_defaults(), 
+	})
+end
+
+-- Cobblestone wall
+
+register_wall("mcl_walls:cobble", "Cobblestone Wall", "default_cobble.png", "mcl_walls_cobble.png")
+minetest.register_craft({
+	output = 'mcl_walls:cobble 6',
+	recipe = {
+		{'default:cobble', 'default:cobble', 'default:cobble'},
+		{'default:cobble', 'default:cobble', 'default:cobble'}
+	}
+})
+
+-- Mossy wall
+
+register_wall("mcl_walls:mossycobble", "Mossy Cobblestone Wall", "default_mossycobble.png", "mcl_walls_mossycobble.png")
+minetest.register_craft({
+	output = 'mcl_walls:mossycobble 6',
+	recipe = {
+		{'default:mossycobble', 'default:mossycobble', 'default:mossycobble'},
+        {'default:mossycobble', 'default:mossycobble', 'default:mossycobble'}
+	}
+})
+
+minetest.register_on_placenode(update_wall_global)
+minetest.register_on_dignode(update_wall_global)