Screwdriver rewrite

mods/screwdriver/init.lua

-
-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, "Use while sneaking 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
@@ -55,21 +6,21 @@ local function nextrange(x, max)
 	return x
 end
 
-local function screwdriver_handler(itemstack, user, pointed_thing)
+-- Handles rotation
+local function screwdriver_handler(itemstack, user, pointed_thing, mode)
 	if pointed_thing.type ~= "node" then
 		return
 	end
+
 	local pos = pointed_thing.under
 	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
+
 	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 or not ndef.paramtype2 == "facedir" or
@@ -78,47 +29,22 @@ local function screwdriver_handler(itemstack, user, pointed_thing)
 			node.param2 == nil then
 		return
 	end
-	-- Get ready to set the param2
+
+	-- Set 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
+	item_wear = item_wear + 300 -- was 327
 	if item_wear > 65535 then
 		itemstack:clear()
 		return itemstack
@@ -127,33 +53,30 @@ local function screwdriver_handler(itemstack, user, pointed_thing)
 	return itemstack
 end
 
-minetest.register_craft({
-	output = "screwdriver:screwdriver",
-	recipe = {
-		{"default:steel_ingot"},
-		{"group:stick"}
-	}
-})
-
+-- Screwdriver
 minetest.register_tool("screwdriver:screwdriver", {
-	description = "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_handler(itemstack, user, pointed_thing, 1)
+		return itemstack
+	end,
+	on_place = function(itemstack, user, pointed_thing)
+		screwdriver_handler(itemstack, user, pointed_thing, 3)
 		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
 
+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")