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This prevents nodes that are not of the "facedir" paramtype2, as these are generally not expected to be able to rotate. Mods and other methods may still manipulate param2 of these nodes as expected. Addresses #712
118 lines
3.2 KiB
Lua
118 lines
3.2 KiB
Lua
screwdriver = {}
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local function nextrange(x, max)
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x = x + 1
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if x > max then
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x = 0
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end
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return x
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end
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screwdriver.ROTATE_FACE = 1
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screwdriver.ROTATE_AXIS = 2
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screwdriver.disallow = function(pos, node, user, mode, new_param2)
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return false
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end
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screwdriver.rotate_simple = function(pos, node, user, mode, new_param2)
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if mode ~= screwdriver.ROTATE_FACE then
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return false
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end
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end
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local USES = 200
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-- Handles rotation
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local function screwdriver_handler(itemstack, user, pointed_thing, mode)
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if pointed_thing.type ~= "node" then
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return
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end
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local pos = pointed_thing.under
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if minetest.is_protected(pos, user:get_player_name()) then
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minetest.record_protection_violation(pos, user:get_player_name())
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return
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end
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local node = minetest.get_node(pos)
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local ndef = minetest.registered_nodes[node.name]
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-- verify node is facedir (expected to be rotatable)
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if ndef.paramtype2 ~= "facedir" then
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return
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end
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-- Compute param2
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local rotationPart = node.param2 % 32 -- get first 4 bits
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local preservePart = node.param2 - rotationPart
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local axisdir = math.floor(rotationPart / 4)
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local rotation = rotationPart - axisdir * 4
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if mode == screwdriver.ROTATE_FACE then
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rotationPart = axisdir * 4 + nextrange(rotation, 3)
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elseif mode == screwdriver.ROTATE_AXIS then
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rotationPart = nextrange(axisdir, 5) * 4
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end
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local new_param2 = preservePart + rotationPart
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local should_rotate = true
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if ndef and ndef.on_rotate then -- Node provides a handler, so let the handler decide instead if the node can be rotated
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-- Copy pos and node because callback can modify it
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local result = ndef.on_rotate(vector.new(pos),
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{name = node.name, param1 = node.param1, param2 = node.param2},
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user, mode, new_param2)
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if result == false then -- Disallow rotation
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return
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elseif result == true then
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should_rotate = false
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end
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else
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if not ndef or not ndef.paramtype2 == "facedir" or
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(ndef.drawtype == "nodebox" and
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not ndef.node_box.type == "fixed") or
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node.param2 == nil then
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return
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end
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if ndef.can_dig and not ndef.can_dig(pos, user) then
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return
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end
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end
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if should_rotate then
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node.param2 = new_param2
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minetest.swap_node(pos, node)
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end
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if not minetest.setting_getbool("creative_mode") then
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itemstack:add_wear(65535 / (USES - 1))
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end
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return itemstack
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end
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-- Screwdriver
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minetest.register_tool("screwdriver:screwdriver", {
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description = "Screwdriver (left-click rotates face, right-click rotates axis)",
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inventory_image = "screwdriver.png",
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on_use = function(itemstack, user, pointed_thing)
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screwdriver_handler(itemstack, user, pointed_thing, screwdriver.ROTATE_FACE)
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return itemstack
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end,
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on_place = function(itemstack, user, pointed_thing)
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screwdriver_handler(itemstack, user, pointed_thing, screwdriver.ROTATE_AXIS)
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return itemstack
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end,
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})
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minetest.register_craft({
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output = "screwdriver:screwdriver",
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recipe = {
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{"default:steel_ingot"},
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{"group:stick"}
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}
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})
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minetest.register_alias("screwdriver:screwdriver1", "screwdriver:screwdriver")
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minetest.register_alias("screwdriver:screwdriver2", "screwdriver:screwdriver")
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minetest.register_alias("screwdriver:screwdriver3", "screwdriver:screwdriver")
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minetest.register_alias("screwdriver:screwdriver4", "screwdriver:screwdriver")
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