VoxeLibre/mods/mcl_minecarts/rails.lua

-- Speed up

minetest.register_node("mcl_minecarts:golden_rail", {
	description = "Powered Rail",
	drawtype = "raillike",
	tiles = {"carts_rail_pwr.png", "carts_rail_curved_pwr.png", "carts_rail_t_junction_pwr.png", "carts_rail_crossing_pwr.png"},
	inventory_image = "carts_rail_pwr.png",
	wield_image = "carts_rail_pwr.png",
	paramtype = "light",
	is_ground_content = true,
	walkable = false,
	selection_box = {
		type = "fixed",
		-- but how to specify the dimensions for curved and sideways rails?
		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
	},
	groups = {dig_immediate = 2, attached_node = 1, rail = 1, connect_to_raillike = 1, dig_by_water = 1},
	
	after_place_node = function(pos, placer, itemstack)
		if not mesecon then
			minetest.get_meta(pos):set_string("cart_acceleration", "0.5")
		end
	end,
	
	mesecons = {
		effector = {
			action_on = function(pos, node)
				mcl_minecarts:boost_rail(pos, 0.5)
			end,
			
			action_off = function(pos, node)
				minetest.get_meta(pos):set_string("cart_acceleration", "0")
			end,
		},
	},
})

minetest.register_craft({
	output = "mcl_minecarts:golden_rail 6",
	recipe = {
		{"default:gold_ingot", "", "default:gold_ingot"},
		{"default:gold_ingot", "default:stick", "default:gold_ingot"},
		{"default:gold_ingot", "mesecons:redstone", "default:gold_ingot"},
	}
})