minetest_game/mods/screwdriver/init.lua

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local mode_text = {
{"Change rotation, Don't change axisdir."},
{"Keep choosen face in front then rotate it."},
{"Change axis dir, Reset rotation."},
{"Bring top in front then rotate it."},
}
local opposite_faces = {
[0] = 5,
[1] = 2,
[2] = 1,
[3] = 4,
[4] = 3,
[5] = 0,
}
local function screwdriver_setmode(user,itemstack)
local player_name = user:get_player_name()
local item = itemstack:to_table()
local mode = tonumber(itemstack:get_metadata())
if not mode then
minetest.chat_send_player(player_name, "Hold shift and use to change screwdriwer modes.")
mode = 0
end
mode = mode + 1
if mode == 5 then
mode = 1
end
minetest.chat_send_player(player_name, "Screwdriver mode : "..mode.." - "..mode_text[mode][1] )
itemstack:set_name("screwdriver:screwdriver"..mode)
itemstack:set_metadata(mode)
return itemstack
end
local function get_node_face(pointed_thing)
local ax, ay, az = pointed_thing.above.x, pointed_thing.above.y, pointed_thing.above.z
local ux, uy, uz = pointed_thing.under.x, pointed_thing.under.y, pointed_thing.under.z
if ay > uy then return 0 -- Top
elseif az > uz then return 1 -- Z+ side
elseif az < uz then return 2 -- Z- side
elseif ax > ux then return 3 -- X+ side
elseif ax < ux then return 4 -- X- side
elseif ay < uy then return 5 -- Bottom
else
error("pointed_thing.above and under are the same!")
end
end
local function nextrange(x, max)
x = x + 1
if x > max then
x = 0
end
return x
end
local function screwdriver_handler(itemstack, user, pointed_thing)
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 keys = user:get_player_control()
local player_name = user:get_player_name()
local mode = tonumber(itemstack:get_metadata())
if not mode or keys["sneak"] == true then
return screwdriver_setmode(user, itemstack)
end
local node = minetest.get_node(pos)
local node_name = node.name
local ndef = minetest.registered_nodes[node.name]
if ndef.paramtype2 == "facedir" then
if ndef.drawtype == "nodebox" and ndef.node_box.type ~= "fixed" then
return
end
if node.param2 == nil then
return
end
-- Get ready to set the param2
local n = node.param2
local axisdir = math.floor(n / 4)
local rotation = n - axisdir * 4
if mode == 1 then
n = axisdir * 4 + nextrange(rotation, 3)
elseif mode == 2 then
-- If you are pointing at the axisdir face or the
-- opposite one then you can just rotate the node.
-- Otherwise change the axisdir, avoiding the facing
-- and opposite axes.
local face = get_node_face(pointed_thing)
if axisdir == face or axisdir == opposite_faces[face] then
n = axisdir * 4 + nextrange(rotation, 3)
else
axisdir = nextrange(axisdir, 5)
-- This is repeated because switching from the face
-- can move to to the opposite and vice-versa
if axisdir == face or axisdir == opposite_faces[face] then
axisdir = nextrange(axisdir, 5)
end
if axisdir == face or axisdir == opposite_faces[face] then
axisdir = nextrange(axisdir, 5)
end
n = axisdir * 4
end
elseif mode == 3 then
n = nextrange(axisdir, 5) * 4
elseif mode == 4 then
local face = get_node_face(pointed_thing)
if axisdir == face then
n = axisdir * 4 + nextrange(rotation, 3)
else
n = face * 4
end
end
--print (dump(axisdir..", "..rotation))
node.param2 = n
minetest.swap_node(pos, node)
local item_wear = tonumber(itemstack:get_wear())
item_wear = item_wear + 327
if item_wear > 65535 then
itemstack:clear()
return itemstack
end
itemstack:set_wear(item_wear)
return itemstack
end
end
minetest.register_craft({
output = "screwdriver:screwdriver",
recipe = {
{"default:steel_ingot"},
{"group:stick"}
}
})
minetest.register_tool("screwdriver:screwdriver", {
description = "Screwdriver",
inventory_image = "screwdriver.png",
on_use = function(itemstack, user, pointed_thing)
screwdriver_handler(itemstack, user, pointed_thing)
return itemstack
end,
})
for i = 1, 4 do
minetest.register_tool("screwdriver:screwdriver"..i, {
description = "Screwdriver in Mode "..i,
inventory_image = "screwdriver.png^tool_mode"..i..".png",
wield_image = "screwdriver.png",
groups = {not_in_creative_inventory=1},
on_use = function(itemstack, user, pointed_thing)
screwdriver_handler(itemstack, user, pointed_thing)
return itemstack
end,
})
end