--[[local node_ok = function(pos, fallback)

	fallback = fallback or "mcl_core:dirt"

	local node = minetest.get_node_or_nil(pos)

	if node and minetest.registered_nodes[node.name] then
		return node
	end

	return {name = fallback}
end


local function node_is(pos)
	local node = minetest.get_node(pos)

	if node.name == "air" then
		return "air"
	end

	if minetest.get_item_group(node.name, "lava") ~= 0 then
		return "lava"
	end

	if minetest.get_item_group(node.name, "liquid") ~= 0 then
		return "liquid"
	end

	local def = minetest.registered_nodes[node.name]

	if not def or def.walkable then
		return "walkable"
	end

	return "other"
end
--]]

function mcl_mobs.mob:mount(obj)
	if mcl_mount.mount(obj) then
		if self.def.on_mount(obj) == false then
			return
		end

		self.driver = obj
		obj:set_attach(self.object, "", self.def.driver_offset)
		if obj:is_player() then
			obj:set_eye_offset(self.def.driver_eye_offset, vector.new(0, 0, 0))
		end
	end
end

--[[
function mobs:drive(moving_anim, stand_anim, can_fly, dtime)

	local rot_view = 0

	if self.player_rotation.y == 90 then
		rot_view = math.pi/2
	end

	local acce_y = 0
	local velo = self.object:get_velocity()

	self.v = get_v(velo) * get_sign(self.v)

	-- process controls
	if self.driver then

		local ctrl = self.driver:get_player_control()

		-- move forwards
		if ctrl.up then

			self:set_velocity(self.run_velocity)

			self:set_mob_animation( moving_anim)

		-- move backwards
		elseif ctrl.down then

			self:set_velocity(-self.run_velocity)

			self:set_mob_animation(moving_anim)

		--halt
		else

			mobs.set_velocity(entity, 0)

			mobs.set_mob_animation(entity, stand_anim)
		end

		-- mob rotation
		entity.object:set_yaw(entity.driver:get_look_horizontal() - entity.rotate)
		entity.yaw = entity.driver:get_look_horizontal() - entity.rotate

		--[[
		if can_fly then

			-- fly up
			if ctrl.jump then
				velo.y = velo.y + 1
				if velo.y > entity.accel then velo.y = entity.accel end

			elseif velo.y > 0 then
				velo.y = velo.y - 0.1
				if velo.y < 0 then velo.y = 0 end
			end

			-- fly down
			if ctrl.sneak then
				velo.y = velo.y - 1
				if velo.y < -entity.accel then velo.y = -entity.accel end

			elseif velo.y < 0 then
				velo.y = velo.y + 0.1
				if velo.y > 0 then velo.y = 0 end
			end

		else
			] ]--

		-- jump
		if ctrl.jump then

			mobs.jump(entity)
		end

		--end
	end

	--[[
	-- set moving animation
	if moving_anim then
		mobs:set_mob_animation(entity, moving_anim)
	end

	-- Stop!
	local s = get_sign(entity.v)

	entity.v = entity.v - 0.02 * s

	if s ~= get_sign(entity.v) then

		entity.object:set_velocity({x = 0, y = 0, z = 0})
		entity.v = 0
		return
	end

	-- enforce speed limit forward and reverse
	local max_spd = entity.max_speed_reverse

	if get_sign(entity.v) >= 0 then
		max_spd = entity.max_speed_forward
	end

	if math.abs(entity.v) > max_spd then
		entity.v = entity.v - get_sign(entity.v)
	end

	-- Set position, velocity and acceleration
	local p = entity.object:get_pos()
	local new_velo
	local new_acce = {x = 0, y = -9.8, z = 0}

	p.y = p.y - 0.5

	local ni = node_is(p)
	local v = entity.v

	if ni == "air" then

		if can_fly == true then
			new_acce.y = 0
		end

	elseif ni == "liquid" or ni == "lava" then

		if ni == "lava" and entity.lava_damage ~= 0 then

			entity.lava_counter = (entity.lava_counter or 0) + dtime

			if entity.lava_counter > 1 then

				minetest.sound_play("default_punch", {
					object = entity.object,
					max_hear_distance = 5
				}, true)

				entity.object:punch(entity.object, 1.0, {
					full_punch_interval = 1.0,
					damage_groups = {fleshy = entity.lava_damage}
				}, nil)

				entity.lava_counter = 0
			end
		end

		if entity.terrain_type == 2
		or entity.terrain_type == 3 then

			new_acce.y = 0
			p.y = p.y + 1

			if node_is(p) == "liquid" then

				if velo.y >= 5 then
					velo.y = 5
				elseif velo.y < 0 then
					new_acce.y = 20
				else
					new_acce.y = 5
				end
			else
				if math.abs(velo.y) < 1 then
					local pos = entity.object:get_pos()
					pos.y = math.floor(pos.y) + 0.5
					entity.object:set_pos(pos)
					velo.y = 0
				end
			end
		else
			v = v * 0.25
		end
	end

	new_velo = get_velocity(v, entity.object:get_yaw() - rot_view, velo.y)
	new_acce.y = new_acce.y + acce_y

	entity.object:set_velocity(new_velo)
	entity.object:set_acceleration(new_acce)

	-- CRASH!
	if enable_crash then

		local intensity = entity.v2 - v

		if intensity >= crash_threshold then

			entity.object:punch(entity.object, 1.0, {
				full_punch_interval = 1.0,
				damage_groups = {fleshy = intensity}
			}, nil)

		end
	end

	entity.v2 = v
	] ]--
end


-- directional flying routine by D00Med (edited by TenPlus1)

function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)

	if true then
		print("succ")
		return
	end
	local ctrl = entity.driver:get_player_control()
	local velo = entity.object:get_velocity()
	local dir = entity.driver:get_look_dir()
	local yaw = entity.driver:get_look_horizontal() + 1.57 -- offset fix between old and new commands

	if ctrl.up then
		entity.object:set_velocity({
			x = dir.x * speed,
			y = dir.y * speed + 2,
			z = dir.z * speed
		})

	elseif ctrl.down then
		entity.object:set_velocity({
			x = -dir.x * speed,
			y = dir.y * speed + 2,
			z = -dir.z * speed
		})

	elseif not ctrl.down or ctrl.up or ctrl.jump then
		entity.object:set_velocity({x = 0, y = -2, z = 0})
	end

	entity.object:set_yaw(yaw + math.pi + math.pi / 2 - entity.rotate)

	-- firing arrows
	if ctrl.LMB and ctrl.sneak and shoots then

		local pos = entity.object:get_pos()
		local obj = minetest.add_entity({
			x = pos.x + 0 + dir.x * 2.5,
			y = pos.y + 1.5 + dir.y,
			z = pos.z + 0 + dir.z * 2.5}, arrow)

		local ent = obj:get_luaentity()
		if ent then
			ent.switch = 1 -- for mob specific arrows
			ent.owner_id = tostring(entity.object) -- so arrows dont hurt entity you are riding
			local vec = {x = dir.x * 6, y = dir.y * 6, z = dir.z * 6}
			local yaw = entity.driver:get_look_horizontal()
			obj:set_yaw(yaw + math.pi / 2)
			obj:set_velocity(vec)
		else
			obj:remove()
		end
	end

	-- change animation if stopped
	if velo.x == 0 and velo.y == 0 and velo.z == 0 then

		mobs:set_mob_animation(entity, stand_anim)
	else
		-- moving animation
		mobs:set_mob_animation(entity, moving_anim)
	end
end

]]--