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local S = technic.getter
local cable_itstr_to_tier = {}
function technic.register_cable(tier, size)
local ltier = string.lower(tier)
for x1 = 0, 1 do
for x2 = 0, 1 do
for y1 = 0, 1 do
for y2 = 0, 1 do
for z1 = 0, 1 do
for z2 = 0, 1 do
local id = technic.get_cable_id({x1, x2, y1, y2, z1, z2})
cable_itstr_to_tier["technic:"..ltier.."_cable"..id] = tier
local groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2}
if id ~= 0 then
groups.not_in_creative_inventory = 1
end
minetest.register_node("technic:"..ltier.."_cable"..id, {
description = S("%s Cable"):format(tier),
tiles = {"technic_"..ltier.."_cable.png"},
inventory_image = "technic_"..ltier.."_cable_wield.png",
wield_image = "technic_"..ltier.."_cable_wield.png",
groups = groups,
sounds = default.node_sound_wood_defaults(),
drop = "technic:"..ltier.."_cable0",
paramtype = "light",
sunlight_propagates = true,
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = technic.gen_cable_nodebox(x1, y1, z1, x2, y2, z2, size)
},
on_construct = function()
technic.networks = {}
end,
on_destruct = function()
technic.networks = {}
end,
after_place_node = function(pos)
local node = minetest.get_node(pos)
technic.update_cables(pos, technic.get_cable_tier(node.name))
end,
after_dig_node = function(pos, oldnode)
local tier = technic.get_cable_tier(oldnode.name)
technic.update_cables(pos, tier, true)
end
})
end
end
end
end
end
end
end
minetest.register_on_placenode(function(pos, node)
for tier, machine_list in pairs(technic.machines) do
if machine_list[node.name] ~= nil then
technic.update_cables(pos, tier, true)
technic.networks = {}
end
end
end)
minetest.register_on_dignode(function(pos, node)
for tier, machine_list in pairs(technic.machines) do
if machine_list[node.name] ~= nil then
technic.update_cables(pos, tier, true)
technic.networks = {}
end
end
end)
function technic.get_cable_id(links)
return (links[6] * 1) + (links[5] * 2)
+ (links[4] * 4) + (links[3] * 8)
+ (links[2] * 16) + (links[1] * 32)
end
function technic.update_cables(pos, tier, no_set, secondrun)
local link_positions = {
{x=pos.x+1, y=pos.y, z=pos.z},
{x=pos.x-1, y=pos.y, z=pos.z},
{x=pos.x, y=pos.y+1, z=pos.z},
{x=pos.x, y=pos.y-1, z=pos.z},
{x=pos.x, y=pos.y, z=pos.z+1},
{x=pos.x, y=pos.y, z=pos.z-1}}
local links = {0, 0, 0, 0, 0, 0}
for i, link_pos in pairs(link_positions) do
local connect_type = technic.cables_should_connect(pos, link_pos, tier)
if connect_type then
links[i] = 1
-- Have cables next to us update theirselves,
-- but only once. (We don't want to update the entire
-- network or start an infinite loop of updates)
if not secondrun and connect_type == "cable" then
technic.update_cables(link_pos, tier, false, true)
end
end
end
-- We don't want to set ourselves if we have been removed or we are
-- updating a machine
if not no_set then
minetest.set_node(pos, {name="technic:"..string.lower(tier)
.."_cable"..technic.get_cable_id(links)})
end
end
function technic.is_tier_cable(name, tier)
return cable_itstr_to_tier[name] and cable_itstr_to_tier[name] == tier
end
function technic.get_cable_tier(name)
return cable_itstr_to_tier[name]
end
function technic.cables_should_connect(pos1, pos2, tier)
local name = minetest.get_node(pos2).name
if name == "technic:switching_station" then
return pos2.y == pos1.y + 1 and "machine" or false
elseif name == "technic:supply_converter" then
return math.abs(pos2.y - pos1.y) == 1 and "machine" or false
elseif technic.is_tier_cable(name, tier) then
return "cable"
elseif technic.machines[tier][name] then
return "machine"
end
return false
end
function technic.gen_cable_nodebox(x1, y1, z1, x2, y2, z2, size)
-- Nodeboxes
local box_center = {-size, -size, -size, size, size, size}
local box_y1 = {-size, -size, -size, size, 0.5, size} -- y+
local box_x1 = {-size, -size, -size, 0.5, size, size} -- x+
local box_z1 = {-size, -size, size, size, size, 0.5} -- z+
local box_z2 = {-size, -size, -0.5, size, size, size} -- z-
local box_y2 = {-size, -0.5, -size, size, size, size} -- y-
local box_x2 = {-0.5, -size, -size, size, size, size} -- x-
local box = {box_center}
if x1 == 1 then
table.insert(box, box_x1)
end
if y1 == 1 then
table.insert(box, box_y1)
end
if z1 == 1 then
table.insert(box, box_z1)
end
if x2 == 1 then
table.insert(box, box_x2)
end
if y2 == 1 then
table.insert(box, box_y2)
end
if z2 == 1 then
table.insert(box, box_z2)
end
return box
end
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