VoxeLibre/mods/mcl_walls/init.lua
2017-01-27 18:15:36 +01:00

219 lines
5.6 KiB
Lua

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)