nalc_game/mods/screwdriver/init.lua

166 lines
4.8 KiB
Lua

screwdriver = {}
screwdriver.ROTATE_FACE = 1
screwdriver.ROTATE_AXIS = 2
screwdriver.disallow = function(pos, node, user, mode, new_param2)
return false
end
screwdriver.rotate_simple = function(pos, node, user, mode, new_param2)
if mode ~= screwdriver.ROTATE_FACE then
return false
end
end
-- For attached wallmounted nodes: returns true if rotation is valid
-- simplified version of minetest:builtin/game/falling.lua#L148.
local function check_attached_node(pos, rotation)
local d = minetest.wallmounted_to_dir(rotation)
local p2 = vector.add(pos, d)
local n = minetest.get_node(p2).name
local def2 = minetest.registered_nodes[n]
if def2 and not def2.walkable then
return false
end
return true
end
screwdriver.rotate = {}
local facedir_tbl = {
[screwdriver.ROTATE_FACE] = {
[0] = 1, [1] = 2, [2] = 3, [3] = 0,
[4] = 5, [5] = 6, [6] = 7, [7] = 4,
[8] = 9, [9] = 10, [10] = 11, [11] = 8,
[12] = 13, [13] = 14, [14] = 15, [15] = 12,
[16] = 17, [17] = 18, [18] = 19, [19] = 16,
[20] = 21, [21] = 22, [22] = 23, [23] = 20,
},
[screwdriver.ROTATE_AXIS] = {
[0] = 4, [1] = 4, [2] = 4, [3] = 4,
[4] = 8, [5] = 8, [6] = 8, [7] = 8,
[8] = 12, [9] = 12, [10] = 12, [11] = 12,
[12] = 16, [13] = 16, [14] = 16, [15] = 16,
[16] = 20, [17] = 20, [18] = 20, [19] = 20,
[20] = 0, [21] = 0, [22] = 0, [23] = 0,
},
}
screwdriver.rotate.facedir = function(pos, node, mode)
local rotation = node.param2 % 32 -- get first 5 bits
local other = node.param2 - rotation
rotation = facedir_tbl[mode][rotation] or 0
return rotation + other
end
screwdriver.rotate.colorfacedir = screwdriver.rotate.facedir
local wallmounted_tbl = {
[screwdriver.ROTATE_FACE] = {[2] = 5, [3] = 4, [4] = 2, [5] = 3, [1] = 0, [0] = 1},
[screwdriver.ROTATE_AXIS] = {[2] = 5, [3] = 4, [4] = 2, [5] = 1, [1] = 0, [0] = 3}
}
screwdriver.rotate.wallmounted = function(pos, node, mode)
local rotation = node.param2 % 8 -- get first 3 bits
local other = node.param2 - rotation
rotation = wallmounted_tbl[mode][rotation] or 0
if minetest.get_item_group(node.name, "attached_node") ~= 0 then
-- find an acceptable orientation
for i = 1, 5 do
if not check_attached_node(pos, rotation) then
rotation = wallmounted_tbl[mode][rotation] or 0
else
break
end
end
end
return rotation + other
end
screwdriver.rotate.colorwallmounted = screwdriver.rotate.wallmounted
-- Handles rotation
screwdriver.handler = function(itemstack, user, pointed_thing, mode, uses)
if pointed_thing.type ~= "node" then
return
end
local pos = pointed_thing.under
if minetest.is_protected(pos, user:get_player_name()) then
minetest.record_protection_violation(pos, user:get_player_name())
return
end
local node = minetest.get_node(pos)
local ndef = minetest.registered_nodes[node.name]
if not ndef then
return itemstack
end
-- can we rotate this paramtype2?
local fn = screwdriver.rotate[ndef.paramtype2]
if not fn then
return itemstack
end
local should_rotate = true
local new_param2 = fn(pos, node, mode)
-- Node provides a handler, so let the handler decide instead if the node can be rotated
if ndef.on_rotate then
-- Copy pos and node because callback can modify it
local result = ndef.on_rotate(vector.new(pos),
{name = node.name, param1 = node.param1, param2 = node.param2},
user, mode, new_param2)
if result == false then -- Disallow rotation
return itemstack
elseif result == true then
should_rotate = false
end
elseif ndef.on_rotate == false then
return itemstack
elseif ndef.can_dig and not ndef.can_dig(pos, user) then
return itemstack
end
if should_rotate then
node.param2 = new_param2
minetest.swap_node(pos, node)
minetest.check_for_falling(pos)
end
if not (creative and creative.is_enabled_for
and creative.is_enabled_for(user:get_player_name())) then
itemstack:add_wear(65535 / ((uses or 200) - 1))
end
return itemstack
end
-- Screwdriver
minetest.register_tool("screwdriver:screwdriver", {
description = "Screwdriver (left-click rotates face, right-click rotates axis)",
inventory_image = "screwdriver.png",
on_use = function(itemstack, user, pointed_thing)
screwdriver.handler(itemstack, user, pointed_thing, screwdriver.ROTATE_FACE, 200)
return itemstack
end,
on_place = function(itemstack, user, pointed_thing)
screwdriver.handler(itemstack, user, pointed_thing, screwdriver.ROTATE_AXIS, 200)
return itemstack
end,
})
minetest.register_craft({
output = "screwdriver:screwdriver",
recipe = {
{"default:steel_ingot"},
{"group:stick"}
}
})
minetest.register_alias("screwdriver:screwdriver1", "screwdriver:screwdriver")
minetest.register_alias("screwdriver:screwdriver2", "screwdriver:screwdriver")
minetest.register_alias("screwdriver:screwdriver3", "screwdriver:screwdriver")
minetest.register_alias("screwdriver:screwdriver4", "screwdriver:screwdriver")