Huge rewrite

Add sounds
Change Y acceleration to -2.5
Add partwise compatibility for MTG-registered rails

README.txt

@@ -1,6 +1,7 @@
  Minetest mod: boost_cart
 ==========================
 Based on (and fully compatible with) the mod "carts" by PilzAdam
+Also compatible with the carts mod in the subgame "minetest_game".
 Target: Run smoothly as possible even on laggy server
 
 
@@ -16,7 +17,7 @@ Target: Run smoothly as possible even on laggy server
 
  License for everything
 ------------------------
-CC-0
+CC-0, if not specified otherwise below
 
 
  Authors
@@ -36,6 +37,10 @@ kddekadenz
 	cart_side.png
 	cart_top.png
 
+klankbeeld (CC-BY 3.0)
+	http://freesound.org/people/klankbeeld/sounds/174042/
+	cart_rail.*.ogg
+
 numberZero
 	carts_rail_dtc.png
 	carts_rail_dtc_on.png

cart_entity.lua

@@ -0,0 +1,380 @@
+
+local HAVE_MESECONS_ENABLED = minetest.global_exists("mesecon")
+
+function boost_cart:on_rail_step(pos)
+	-- Play rail sound
+	if self.sound_counter <= 0 then
+		minetest.sound_play("cart_rail", {
+			pos = pos,
+			max_hear_distance = 40,
+			gain = 0.5
+		})
+		self.sound_counter = math.random(4, 15)
+	end
+	self.sound_counter = self.sound_counter - 1
+
+	if HAVE_MESECONS_ENABLED then
+		boost_cart:signal_detector_rail(pos)
+	end
+end
+
+local cart_entity = {
+	physical = false,
+	collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+	visual = "mesh",
+	mesh = "cart.x",
+	visual_size = {x=1, y=1},
+	textures = {"cart.png"},
+
+	driver = nil,
+	punched = false, -- used to re-send velocity and position
+	velocity = {x=0, y=0, z=0}, -- only used on punch
+	old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
+	old_pos = nil,
+	old_switch = 0,
+	sound_counter = 0,
+	railtype = nil,
+	attached_items = {}
+}
+
+function cart_entity:on_rightclick(clicker)
+	if not clicker or not clicker:is_player() then
+		return
+	end
+	local player_name = clicker:get_player_name()
+	if self.driver and player_name == self.driver then
+		self.driver = nil
+		boost_cart:manage_attachment(clicker, nil)
+	elseif not self.driver then
+		self.driver = player_name
+		boost_cart:manage_attachment(clicker, self.object)
+	end
+end
+
+function cart_entity:on_activate(staticdata, dtime_s)
+	self.object:set_armor_groups({immortal=1})
+	self.sound_counter = math.random(4, 15)
+
+	if string.sub(staticdata, 1, string.len("return")) ~= "return" then
+		return
+	end
+	local data = minetest.deserialize(staticdata)
+	if not data or type(data) ~= "table" then
+		return
+	end
+	self.railtype = data.railtype
+	if data.old_dir then
+		self.old_dir = data.old_dir
+	end
+end
+
+function cart_entity:get_staticdata()
+	return minetest.serialize({
+		railtype = self.railtype,
+		old_dir = self.old_dir
+	})
+end
+
+function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
+	local pos = self.object:getpos()
+	if not self.railtype then
+		local node = minetest.get_node(pos).name
+		self.railtype = minetest.get_item_group(node, "connect_to_raillike")
+	end
+
+	if not puncher or not puncher:is_player() then
+		local cart_dir = boost_cart:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
+		if vector.equals(cart_dir, {x=0, y=0, z=0}) then
+			return
+		end
+		self.velocity = vector.multiply(cart_dir, 3)
+		self.punched = true
+		return
+	end
+
+	if puncher:get_player_control().sneak then
+		-- Pick up cart: Drop all attachments
+		if self.driver then
+			if self.old_pos then
+				self.object:setpos(self.old_pos)
+			end
+			local player = minetest.get_player_by_name(self.driver)
+			boost_cart:manage_attachment(player, nil)
+		end
+		for _, obj_ in pairs(self.attached_items) do
+			if obj_ then
+				obj_:set_detach()
+			end
+		end
+
+		local leftover = puncher:get_inventory():add_item("main", "carts:cart")
+		if not leftover:is_empty() then
+			minetest.add_item(self.object:getpos(), leftover)
+		end
+		self.object:remove()
+		return
+	end
+
+	local vel = self.object:getvelocity()
+	if puncher:get_player_name() == self.driver then
+		if math.abs(vel.x + vel.z) > boost_cart.punch_speed_max then
+			return
+		end
+	end
+
+	local punch_dir = boost_cart:velocity_to_dir(puncher:get_look_dir())
+	punch_dir.y = 0
+	local cart_dir = boost_cart:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
+	if vector.equals(cart_dir, {x=0, y=0, z=0}) then
+		return
+	end
+
+	local punch_interval = 1
+	if tool_capabilities and tool_capabilities.full_punch_interval then
+		punch_interval = tool_capabilities.full_punch_interval
+	end
+	time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
+	local f = 3 * (time_from_last_punch / punch_interval)
+
+	self.velocity = vector.multiply(cart_dir, f)
+	self.old_dir = cart_dir
+	self.punched = true
+end
+
+function cart_entity:on_step(dtime)
+	local vel = self.object:getvelocity()
+	local update = {}
+	if self.punched then
+		vel = vector.add(vel, self.velocity)
+		self.object:setvelocity(vel)
+		self.old_dir.y = 0
+	elseif vector.equals(vel, {x=0, y=0, z=0}) then
+		return
+	end
+
+	local pos = self.object:getpos()
+
+	if self.old_pos and not self.punched then
+		local flo_pos = vector.round(pos)
+		local flo_old = vector.round(self.old_pos)
+		if vector.equals(flo_pos, flo_old) then
+			-- Do not check one node multiple times
+			return
+		end
+	end
+
+	local ctrl, player
+
+	-- Get player controls
+	if self.driver then
+		player = minetest.get_player_by_name(self.driver)
+		if player then
+			ctrl = player:get_player_control()
+		end
+	end
+
+	if self.old_pos then
+		-- Detection for "skipping" nodes
+		local expected_pos = vector.add(self.old_pos, self.old_dir)
+		local found_path = boost_cart:pathfinder(
+			pos, expected_pos, self.old_dir, ctrl, self.old_switch, self.railtype
+		)
+
+		if not found_path then
+			-- No rail found: reset back to the expected position
+			pos = vector.new(self.old_pos)
+			update.pos = true
+		end
+	end
+
+	local cart_dir = boost_cart:velocity_to_dir(vel)
+
+	-- dir:         New moving direction of the cart
+	-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
+	local dir, switch_keys = boost_cart:get_rail_direction(
+		pos, cart_dir, ctrl, self.old_switch, self.railtype
+	)
+
+	local new_acc = {x=0, y=0, z=0}
+	if vector.equals(dir, {x=0, y=0, z=0}) then
+		vel = {x=0, y=0, z=0}
+		pos = vector.round(pos)
+		update.pos = true
+		update.vel = true
+	else
+		-- Direction change detected
+		if not vector.equals(dir, self.old_dir) then
+			vel = vector.multiply(dir, math.abs(vel.x + vel.z))
+			update.vel = true
+			if dir.y ~= self.old_dir.y then
+				pos = vector.round(pos)
+				update.pos = true
+			end
+		end
+		-- Center on the rail
+		if dir.z ~= 0 and math.floor(pos.x + 0.5) ~= pos.x then
+			pos.x = math.floor(pos.x + 0.5)
+			update.pos = true
+		end
+		if dir.x ~= 0 and math.floor(pos.z + 0.5) ~= pos.z then
+			pos.z = math.floor(pos.z + 0.5)
+			update.pos = true
+		end
+
+		-- Calculate current cart acceleration
+		local acc = nil
+
+		local acc_meta = minetest.get_meta(pos):get_string("cart_acceleration")
+		if acc_meta == "halt" then
+			-- Stop rail
+			vel = {x=0, y=0, z=0}
+			acc = false
+			pos = vector.round(pos)
+			update.pos = true
+			update.vel = true
+			mod_found = true
+		end
+		if acc == nil then
+			-- Meta speed modifier
+			local speed_mod = tonumber(acc_meta)
+			if speed_mod and speed_mod ~= 0 then
+				-- Try to make it similar to the original carts mod
+				acc = speed_mod * 10
+			end
+		end
+		if acc == nil and boost_cart.mtg_compat then
+			-- MTG Cart API adaption
+			local rail_node = minetest.get_node(vector.round(pos))
+			local railparam = carts.railparams[rail_node.name]
+			if railparam and railparam.acceleration then
+				acc = railparam.acceleration
+			end
+		end
+		if acc == nil then
+			-- Handbrake
+			if ctrl and ctrl.down then
+				acc = -2
+			else
+				acc = -0.4
+			end
+		end
+		
+		-- Slow down or speed up, depending on Y direction
+		if acc then
+			acc = acc + dir.y * -2.5
+		else
+			acc = 0
+		end
+
+		if self.old_dir.y ~= 1 and not self.punched then
+			-- Stop the cart swing between two rail parts (handbrake)
+			if vector.equals(vector.multiply(self.old_dir, -1), dir) then
+				vel = {x=0, y=0, z=0}
+				acc = 0
+				if self.old_pos then
+					pos = vector.new(self.old_pos)
+					update.pos = true
+				end
+				dir = vector.new(self.old_dir)
+				update.vel = true
+			end
+		end
+
+		new_acc = vector.multiply(dir, acc)
+	end
+	boost_cart.on_rail_step(self, vector.round(pos))
+
+	-- Limits
+	local max_vel = boost_cart.speed_max
+	for _,v in pairs({"x","y","z"}) do
+		if math.abs(vel[v]) > max_vel then
+			vel[v] = boost_cart:get_sign(vel[v]) * max_vel
+			new_acc[v] = 0
+			update.vel = true
+		end
+	end
+
+	self.object:setacceleration(new_acc)
+	self.old_pos = pos
+	if not vector.equals(dir, {x=0, y=0, z=0}) then
+		self.old_dir = dir
+	end
+	self.old_switch = switch_keys
+
+
+	if self.punched then
+		-- Collect dropped items
+		for _, obj_ in pairs(minetest.get_objects_inside_radius(pos, 1)) do
+			if not obj_:is_player() and
+					obj_:get_luaentity() and
+					not obj_:get_luaentity().physical_state and
+					obj_:get_luaentity().name == "__builtin:item" then
+
+				obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
+				self.attached_items[#self.attached_items + 1] = obj_
+			end
+		end
+		self.punched = false
+		update.vel = true
+	end
+
+	if not (update.vel or update.pos) then
+		return
+	end
+
+	local yaw = 0
+	if self.old_dir.x < 0 then
+		yaw = 0.5
+	elseif self.old_dir.x > 0 then
+		yaw = 1.5
+	elseif self.old_dir.z < 0 then
+		yaw = 1
+	end
+	self.object:setyaw(yaw * math.pi)
+
+	local anim = {x=0, y=0}
+	if dir.y == -1 then
+		anim = {x=1, y=1}
+	elseif dir.y == 1 then
+		anim = {x=2, y=2}
+	end
+	self.object:set_animation(anim, 1, 0)
+
+	self.object:setvelocity(vel)
+	if update.pos then
+		self.object:setpos(pos)
+	end
+	update = nil
+end
+
+minetest.register_entity(":carts:cart", cart_entity)
+minetest.register_craftitem(":carts:cart", {
+	description = "Cart (Sneak+Click to pick up)",
+	inventory_image = minetest.inventorycube("cart_top.png", "cart_side.png", "cart_side.png"),
+	wield_image = "cart_side.png",
+	on_place = function(itemstack, placer, pointed_thing)
+		if not pointed_thing.type == "node" then
+			return
+		end
+		if boost_cart:is_rail(pointed_thing.under) then
+			minetest.add_entity(pointed_thing.under, "carts:cart")
+		elseif boost_cart:is_rail(pointed_thing.above) then
+			minetest.add_entity(pointed_thing.above, "carts:cart")
+		else
+			return
+		end
+
+		if not minetest.setting_getbool("creative_mode") then
+			itemstack:take_item()
+		end
+		return itemstack
+	end,
+})
+
+minetest.register_craft({
+	output = "carts:cart",
+	recipe = {
+		{"default:steel_ingot", "", "default:steel_ingot"},
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+	},
+})

depends.txt

@@ -1,3 +1,4 @@
 default
 mesecons?
-moreores?
+moreores?
+carts?

init.lua

@@ -13,354 +13,23 @@ if not boost_cart.modpath then
 			"See also: http://dev.minetest.net/Installing_Mods")
 end
 
-dofile(boost_cart.modpath.."/functions.lua")
-dofile(boost_cart.modpath.."/rails.lua")
-
-local HAVE_MESECONS_ENABLED = minetest.global_exists("mesecon")
-if HAVE_MESECONS_ENABLED then
-	dofile(boost_cart.modpath.."/detector.lua")
-end
-
 -- Support for non-default games
 if not default.player_attached then
 	default.player_attached = {}
 end
 
-boost_cart.cart = {
+dofile(boost_cart.modpath.."/functions.lua")
-	physical = false,
+dofile(boost_cart.modpath.."/rails.lua")
-	collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
-	visual = "mesh",
-	mesh = "cart.x",
-	visual_size = {x=1, y=1},
-	textures = {"cart.png"},
 
-	driver = nil,
+if minetest.global_exists("mesecon") then
-	punched = false, -- used to re-send velocity and position
+	dofile(boost_cart.modpath.."/detector.lua")
-	velocity = {x=0, y=0, z=0}, -- only used on punch
+--else
-	old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
+--	minetest.register_alias("carts:powerrail", "boost_cart:detectorrail")
-	old_pos = nil,
+--	minetest.register_alias("carts:powerrail", "boost_cart:detectorrail_on")
-	old_switch = 0,
-	railtype = nil,
-	attached_items = {}
-}
-
-function boost_cart.cart:on_rightclick(clicker)
-	if not clicker or not clicker:is_player() then
-		return
-	end
-	local player_name = clicker:get_player_name()
-	if self.driver and player_name == self.driver then
-		self.driver = nil
-		boost_cart:manage_attachment(clicker, nil)
-	elseif not self.driver then
-		self.driver = player_name
-		boost_cart:manage_attachment(clicker, self.object)
-	end
 end
 
-function boost_cart.cart:on_activate(staticdata, dtime_s)
+boost_cart.mtg_compat = minetest.global_exists("carts") and carts.pathfinder
-	self.object:set_armor_groups({immortal=1})
+if boost_cart.mtg_compat then
-	if string.sub(staticdata, 1, string.len("return")) ~= "return" then
+	minetest.log("action", "[boost_cart] Overwriting definitions of similar carts mod")
-		return
-	end
-	local data = minetest.deserialize(staticdata)
-	if not data or type(data) ~= "table" then
-		return
-	end
-	self.railtype = data.railtype
-	if data.old_dir then
-		self.old_dir = data.old_dir
-	end
 end
-
+dofile(boost_cart.modpath.."/cart_entity.lua")
-function boost_cart.cart:get_staticdata()
-	return minetest.serialize({
-		railtype = self.railtype,
-		old_dir = self.old_dir
-	})
-end
-
-function boost_cart.cart:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
-	local pos = self.object:getpos()
-	if not self.railtype then
-		local node = minetest.get_node(pos).name
-		self.railtype = minetest.get_item_group(node, "connect_to_raillike")
-	end
-
-	if not puncher or not puncher:is_player() then
-		local cart_dir = boost_cart:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
-		if vector.equals(cart_dir, {x=0, y=0, z=0}) then
-			return
-		end
-		self.velocity = vector.multiply(cart_dir, 3)
-		self.punched = true
-		return
-	end
-
-	if puncher:get_player_control().sneak then
-		-- Pick up cart: Drop all attachments
-		if self.driver then
-			if self.old_pos then
-				self.object:setpos(self.old_pos)
-			end
-			local player = minetest.get_player_by_name(self.driver)
-			boost_cart:manage_attachment(player, nil)
-		end
-		for _,obj_ in ipairs(self.attached_items) do
-			if obj_ then
-				obj_:set_detach()
-			end
-		end
-
-		local leftover = puncher:get_inventory():add_item("main", "carts:cart")
-		if not leftover:is_empty() then
-			minetest.add_item(self.object:getpos(), leftover)
-		end
-		self.object:remove()
-		return
-	end
-
-	local vel = self.object:getvelocity()
-	if puncher:get_player_name() == self.driver then
-		if math.abs(vel.x + vel.z) > boost_cart.punch_speed_max then
-			return
-		end
-	end
-
-	local punch_dir = boost_cart:velocity_to_dir(puncher:get_look_dir())
-	punch_dir.y = 0
-	local cart_dir = boost_cart:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
-	if vector.equals(cart_dir, {x=0, y=0, z=0}) then
-		return
-	end
-
-	local punch_interval = 1
-	if tool_capabilities and tool_capabilities.full_punch_interval then
-		punch_interval = tool_capabilities.full_punch_interval
-	end
-	time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
-	local f = 3 * (time_from_last_punch / punch_interval)
-
-	self.velocity = vector.multiply(cart_dir, f)
-	self.old_dir = cart_dir
-	self.punched = true
-end
-
-function boost_cart.cart:on_step(dtime)
-	local vel = self.object:getvelocity()
-	local update = {}
-	if self.punched then
-		vel = vector.add(vel, self.velocity)
-		self.object:setvelocity(vel)
-		self.old_dir.y = 0
-	elseif vector.equals(vel, {x=0, y=0, z=0}) then
-		return
-	end
-
-	local pos = self.object:getpos()
-
-	if self.old_pos and not self.punched then
-		local flo_pos = vector.round(pos)
-		local flo_old = vector.round(self.old_pos)
-		if vector.equals(flo_pos, flo_old) then
-			-- Do not check one node multiple times
-			return
-		end
-	end
-
-	local ctrl, player
-
-	-- Get player controls
-	if self.driver then
-		player = minetest.get_player_by_name(self.driver)
-		if player then
-			ctrl = player:get_player_control()
-		end
-	end
-
-	if self.old_pos then
-		-- Detection for "skipping" nodes
-		local expected_pos = vector.add(self.old_pos, self.old_dir)
-		local found_path = boost_cart:pathfinder(
-			pos, expected_pos, self.old_dir, ctrl, self.old_switch, self.railtype
-		)
-
-		if not found_path then
-			-- No rail found: reset back to the expected position
-			pos = vector.new(self.old_pos)
-			update.pos = true
-		end
-	end
-
-	local cart_dir = boost_cart:velocity_to_dir(vel)
-
-	-- dir:         New moving direction of the cart
-	-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
-	local dir, switch_keys = boost_cart:get_rail_direction(
-		pos, cart_dir, ctrl, self.old_switch, self.railtype
-	)
-
-	local new_acc = {x=0, y=0, z=0}
-	if vector.equals(dir, {x=0, y=0, z=0}) then
-		vel = {x=0, y=0, z=0}
-		pos = vector.round(pos)
-		update.pos = true
-		update.vel = true
-	else
-		-- Direction change detected
-		if not vector.equals(dir, self.old_dir) then
-			vel = vector.multiply(dir, math.abs(vel.x + vel.z))
-			update.vel = true
-			if dir.y ~= self.old_dir.y then
-				pos = vector.round(pos)
-				update.pos = true
-			end
-		end
-		-- Center on the rail
-		if dir.z ~= 0 and math.floor(pos.x + 0.5) ~= pos.x then
-			pos.x = math.floor(pos.x + 0.5)
-			update.pos = true
-		end
-		if dir.x ~= 0 and math.floor(pos.z + 0.5) ~= pos.z then
-			pos.z = math.floor(pos.z + 0.5)
-			update.pos = true
-		end
-
-		-- Slow down or speed up..
-		local acc = dir.y * -1.8
-
-		local speed_mod_string = minetest.get_meta(pos):get_string("cart_acceleration")
-		local speed_mod = tonumber(speed_mod_string)
-		if speed_mod_string == "halt" then
-			vel = {x=0, y=0, z=0}
-			acc = 0
-			pos = vector.round(pos)
-			update.pos = true
-			update.vel = true
-		elseif speed_mod and speed_mod ~= 0 then
-			-- Try to make it similar to the original carts mod
-			acc = acc + (speed_mod * 10)
-		else
-			-- Handbrake
-			if ctrl and ctrl.down then
-				acc = acc - 1.6
-			else
-				acc = acc - 0.4
-			end
-		end
-
-		if self.old_dir.y ~= 1 and not self.punched then
-			-- Stop the cart swing between two rail parts (handbrake)
-			if vector.equals(vector.multiply(self.old_dir, -1), dir) then
-				vel = {x=0, y=0, z=0}
-				acc = 0
-				if self.old_pos then
-					pos = vector.new(self.old_pos)
-					update.pos = true
-				end
-				dir = vector.new(self.old_dir)
-				update.vel = true
-			end
-		end
-
-		new_acc = vector.multiply(dir, acc)
-	end
-
-	if HAVE_MESECONS_ENABLED then
-		boost_cart:signal_detector_rail(vector.round(pos))
-	end
-
-	-- Limits
-	local max_vel = boost_cart.speed_max
-	for _,v in ipairs({"x","y","z"}) do
-		if math.abs(vel[v]) > max_vel then
-			vel[v] = boost_cart:get_sign(vel[v]) * max_vel
-			new_acc[v] = 0
-			update.vel = true
-		end
-	end
-
-	self.object:setacceleration(new_acc)
-	self.old_pos = vector.new(pos)
-	if not vector.equals(dir, {x=0, y=0, z=0}) then
-		self.old_dir = vector.new(dir)
-	end
-	self.old_switch = switch_keys
-
-
-	if self.punched then
-		-- Collect dropped items
-		for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 1)) do
-			if not obj_:is_player() and
-					obj_:get_luaentity() and
-					not obj_:get_luaentity().physical_state and
-					obj_:get_luaentity().name == "__builtin:item" then
-
-				obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
-				self.attached_items[#self.attached_items + 1] = obj_
-			end
-		end
-		self.punched = false
-		update.vel = true
-	end
-
-	if not (update.vel or update.pos) then
-		return
-	end
-
-	local yaw = 0
-	if self.old_dir.x < 0 then
-		yaw = 0.5
-	elseif self.old_dir.x > 0 then
-		yaw = 1.5
-	elseif self.old_dir.z < 0 then
-		yaw = 1
-	end
-	self.object:setyaw(yaw * math.pi)
-
-	local anim = {x=0, y=0}
-	if dir.y == -1 then
-		anim = {x=1, y=1}
-	elseif dir.y == 1 then
-		anim = {x=2, y=2}
-	end
-	self.object:set_animation(anim, 1, 0)
-
-	self.object:setvelocity(vel)
-	if update.pos then
-		self.object:setpos(pos)
-	end
-	update = nil
-end
-
-minetest.register_entity(":carts:cart", boost_cart.cart)
-minetest.register_craftitem(":carts:cart", {
-	description = "Cart (Sneak+Click to pick up)",
-	inventory_image = minetest.inventorycube("cart_top.png", "cart_side.png", "cart_side.png"),
-	wield_image = "cart_side.png",
-	on_place = function(itemstack, placer, pointed_thing)
-		if not pointed_thing.type == "node" then
-			return
-		end
-		if boost_cart:is_rail(pointed_thing.under) then
-			minetest.add_entity(pointed_thing.under, "carts:cart")
-		elseif boost_cart:is_rail(pointed_thing.above) then
-			minetest.add_entity(pointed_thing.above, "carts:cart")
-		else
-			return
-		end
-
-		if not minetest.setting_getbool("creative_mode") then
-			itemstack:take_item()
-		end
-		return itemstack
-	end,
-})
-
-minetest.register_craft({
-	output = "carts:cart",
-	recipe = {
-		{"default:steel_ingot", "", "default:steel_ingot"},
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
-	},
-})

rails.lua

@@ -1,21 +1,10 @@
-minetest.register_node(":default:rail", {
+boost_cart:register_rail(":default:rail", {
 	description = "Rail",
-	drawtype = "raillike",
 	tiles = {
 		"default_rail.png", "default_rail_curved.png",
 		"default_rail_t_junction.png", "default_rail_crossing.png"
 	},
-	inventory_image = "default_rail.png",
+	groups = boost_cart:get_rail_groups()
-	wield_image = "default_rail.png",
-	paramtype = "light",
-	sunlight_propagates = true,
-	is_ground_content = true,
-	walkable = false,
-	selection_box = {
-		type = "fixed",
-		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
-	},
-	groups = boost_cart:get_rail_groups(),
 })
 
 if minetest.get_modpath("moreores") then
@@ -28,7 +17,7 @@ else
 			"carts_rail_cp.png", "carts_rail_curved_cp.png",
 			"carts_rail_t_junction_cp.png", "carts_rail_crossing_cp.png"
 		},
-		groups = boost_cart:get_rail_groups(),
+		groups = boost_cart:get_rail_groups()
 	})
 
 	minetest.register_craft({
@@ -62,7 +51,6 @@ boost_cart:register_rail(":carts:powerrail", {
 			action_on = function(pos, node)
 				boost_cart:boost_rail(pos, 0.5)
 			end,
-
 			action_off = function(pos, node)
 				minetest.get_meta(pos):set_string("cart_acceleration", "0")
 			end,
@@ -98,7 +86,6 @@ boost_cart:register_rail(":carts:brakerail", {
 			action_on = function(pos, node)
 				minetest.get_meta(pos):set_string("cart_acceleration", "-0.3")
 			end,
-
 			action_off = function(pos, node)
 				minetest.get_meta(pos):set_string("cart_acceleration", "0")
 			end,
@@ -134,7 +121,6 @@ boost_cart:register_rail("boost_cart:startstoprail", {
 			action_on = function(pos, node)
 				boost_cart:boost_rail(pos, 0.5)
 			end,
-
 			action_off = function(pos, node)
 				minetest.get_meta(pos):set_string("cart_acceleration", "halt")
 			end,