VoxeLibre/mods/ITEMS/mcl_walls/init.lua
2017-02-23 15:08:52 +01:00

240 lines
5.9 KiB
Lua

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 to add. Must not contain an underscore
* description: Item description (tooltip), visible to user
* craft_material: Material for the default crafting recipe (optional)
* tiles: Wall textures table
* inventory_image: Inventory image (optional)
* groups: Base group memberships (optional, default is {cracky=3})
* sounds: Sound table (optional, default is stone)
]]
function mcl_walls.register_wall(nodename, description, craft_material, tiles, inventory_image, groups, sounds)
local base_groups = groups
if not base_groups then
base_groups = {cracky=3}
end
base_groups.wall = 1
local internal_groups = table.copy(base_groups)
internal_groups.not_in_creative_inventory = 1
local main_node_groups = table.copy(base_groups)
main_node_groups.deco_block = 1
-- TODO: Stop hardcoding blast resistance
if not sounds then
sounds = mcl_sounds.node_sound_stone_defaults()
end
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 = internal_groups,
drop = nodename,
node_box = {
type = "fixed",
fixed = take
},
sounds = sounds,
_mcl_blast_resistance = 30,
})
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 = internal_groups,
drop = nodename,
node_box = {
type = "fixed",
fixed = {pillar, full_blocks[1]}
},
sounds = sounds,
_mcl_blast_resistance = 30,
})
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 = internal_groups,
drop = nodename,
node_box = {
type = "fixed",
fixed = {pillar, full_blocks[2]}
},
sounds = sounds,
_mcl_blast_resistance = 30,
})
-- Inventory item
minetest.register_node(nodename, {
description = description,
paramtype = "light",
is_ground_content = false,
groups = main_node_groups,
tiles = tiles,
inventory_image = inventory_image,
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 = sounds,
_mcl_blast_resistance = 30,
})
if craft_material then
minetest.register_craft({
output = nodename .. " 6",
recipe = {
{craft_material, craft_material, craft_material},
{craft_material, craft_material, craft_material},
}
})
end
end
-- Cobblestone wall
mcl_walls.register_wall("mcl_walls:cobble", "Cobblestone Wall", "mcl_core:cobble", {"default_cobble.png"}, "mcl_walls_cobble.png")
-- Mossy wall
mcl_walls.register_wall("mcl_walls:mossycobble", "Mossy Cobblestone Wall", "mcl_core:mossycobble", {"default_mossycobble.png"}, "mcl_walls_mossycobble.png")
minetest.register_on_placenode(update_wall_global)
minetest.register_on_dignode(update_wall_global)