--[[

	Hyperloop Mod
	=============

	Copyright (C) 2017 Joachim Stolberg

	LGPLv2.1+
	See LICENSE.txt for more information

	History:
	see init.lua

]]--

-- Open/close/animate the pod door
-- seat_pos: position of the seat
-- facedir: direction to the display
-- cmnd: "close", "open", or "animate"
function hyperloop.door_command(seat_pos, facedir, cmnd)
	-- one step forward
	local lcd_pos = vector.add(seat_pos, hyperloop.facedir2dir(facedir))
	-- one step left
	local door_pos1 = vector.add(lcd_pos, hyperloop.facedir2dir(facedir + 1))
	-- one step up
	local door_pos2 = vector.add(door_pos1, {x=0, y=1, z=0})

	local node1 = minetest.get_node(door_pos1)
	local node2 = minetest.get_node(door_pos2)

	-- switch from the radian following facedir to the silly original one
	local tbl = {[0]=0, [1]=3, [2]=2, [3]=1}
	facedir = (facedir + 3) % 4   -- first turn left
	facedir = tbl[facedir]

	if cmnd == "open" then
		minetest.sound_play("door", {
				pos = seat_pos,
				gain = 0.5,
				max_hear_distance = 5,
			})
		node1.name = "air"
		minetest.swap_node(door_pos1, node1)
		node2.name = "air"
		minetest.swap_node(door_pos2, node2)
	elseif cmnd == "close" then
		minetest.sound_play("door", {
				pos = seat_pos,
				gain = 0.5,
				max_hear_distance = 5,
			})
		node1.name = "hyperloop:doorBottom"
		node1.param2 = facedir
		minetest.swap_node(door_pos1, node1)
		node2.name = "hyperloop:doorTopPassive"
		node2.param2 = facedir
		minetest.swap_node(door_pos2, node2)
	elseif cmnd == "animate" then
		node2.name = "hyperloop:doorTopActive"
		node2.param2 = facedir
		minetest.swap_node(door_pos2, node2)
	end
end

minetest.register_node("hyperloop:doorTopPassive", {
		description = "Hyperloop Door Top",
		tiles = {
			-- up, down, right, left, back, front
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_door1OUT.png",
			"hyperloop_door1OUT.png",
		},
		drawtype = "nodebox",
		node_box = {
			type = "fixed",
			fixed = {-8/16, -8/16, -5/16, 8/16, 8/16, 5/16},
		},
		paramtype2 = "facedir",
		diggable = false,
		sounds = default.node_sound_metal_defaults(),
		groups = {cracky=1, not_in_creative_inventory=1},
		is_ground_content = false,
	})

minetest.register_node("hyperloop:doorTopActive", {
		description = "Hyperloop Door Top",
		tiles = {
			-- up, down, right, left, back, front
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			{
				name = "hyperloop_door1IN.png",
				animation = {
					type = "vertical_frames",
					aspect_w = 32,
					aspect_h = 32,
					length = 1.0,
				},
			},
			"hyperloop_door1OUT.png",
		},
		drawtype = "nodebox",
		node_box = {
			type = "fixed",
			fixed = {-8/16, -8/16, -5/16, 8/16, 8/16, 5/16},
		},
		paramtype2 = "facedir",
		diggable = false,
		light_source = 2,
		sounds = default.node_sound_metal_defaults(),
		groups = {cracky=1, not_in_creative_inventory=1},
		is_ground_content = false,
	})

minetest.register_node("hyperloop:doorBottom", {
		description = "Hyperloop Door Bottom",
		tiles = {
			-- up, down, right, left, back, front
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_skin_door.png",
			"hyperloop_door2IN.png",
			"hyperloop_door2OUT.png",
		},
		drawtype = "nodebox",
		node_box = {
			type = "fixed",
			fixed = {-8/16, -8/16, -5/16, 8/16, 8/16, 5/16},
		},
		paramtype2 = "facedir",
		diggable = false,
		sounds = default.node_sound_metal_defaults(),
		groups = {cracky=1, not_in_creative_inventory=1},
		is_ground_content = false,
	})