local robot = require("robot")

local robomove = {}

function robomove.forward(x)
	if x ~= 0 then
		if x > 0 then
			for i = 1, x do
				robot.forward()
			end
		else
			for i = 1, -x do
				robot.back()
			end
		end
	end
end

function robomove.back(x)
	if x ~= 0 then
		if x > 0 then
			robot.turnRight()
			robot.turnRight()
			for i = 1, x do
				robot.forward()
			end
		else
			robot.turnLeft()
			robot.turnLeft()
			for i = 1, -x do
				robot.back()
			end
		end
	end
end

function robomove.up(x)
	if x ~= 0 then
		if x > 0 then
			for i = 1, x do
				robot.up()
			end
		else
			for i = 1, -x do
				robot.down()
			end
		end
	end
end

function robomove.down(x)
	if x ~= 0 then
		if x > 0 then
			for i = 1, x do
				robot.down()
			end
		else
			for i = 1, -x do
				robot.up()
			end
		end
	end
end

function robomove.right(x)
	if x >= 0 then
		robot.turnRight()
		if x > 0 then
			for i = 1, x do
				robot.forward()
			end
		end
	else
		for i = 1, -x do
			robot.back()
		end
		robo.turnLeft()
	end
end

function robomove.left(x)
	if x >= 0 then
		robot.turnLeft()
		if x > 0 then
			for i = 1, x do
				robot.forward()
			end
		end
	else
		for i = 1, -x do
			robot.back()
		end
		robo.turnRight()
	end
end

function robomove.path(m,x)
	local movment = {}
		movment["f"] = robomove.forward
		movment["b"] = robomove.back
		movment["u"] = robomove.up
		movment["d"] = robomove.down
		movment["r"] = robomove.right
		movment["l"] = robomove.left

	movment[m](x)
end

return robomove