UNFINISHED!-Stairs

tArgs = {...}

local lenght = tArgs[1]
local width = tArgs[2]
local height = tArgs[3]

width = width - 1
height = height - 2

print("write <left>, <right> or <middle>")
term.write("Which side to start from?>")
sideCheck = read()
print("The turtle will start from the "..sideCheck.." and make stairs")

ErrorMessage = 0

if sideCheck == "left" then

ErrorMessage = ErrorMessage + 1
end

if sideCheck == "right" then

ErrorMessage = ErrorMessage + 1
end

if sideCheck == "middle" then

ErrorMessage = ErrorMessage + 1
end

if ErrorMessage == 0 then
print("There is no such mode")
return
end

print("write <up> or <down>")
term.write("Which way to go?>")
upOrDownCheck = read()
print("The turtle will go "..upOrDownCheck.." aswell as going "..sideCheck)

errorMessage = 0

upOrDownCheck == "up" then

errorMessage = errorMessage + 1
end

if sideCheck == "down" then

errorMessage = errorMessage + 1
end

if errorMessage == 0 then
print("There is no such mode")
return
end



function ReturnPoint()

for i = 1, tArgs[2] do
turtle.back()
end
end

function forwardDig()

while turtle.digUp() == true do
sleep(0.4)
end
while turtle.dig() == true do
sleep(0.4)
end
while turtle.forward() == false do
sleep(0.4)
turtle.attack()
turtle.dig()
end
end

function heightDig()

while turtle.digUp() == true do
sleep(0.4)
end

for i = 1, tArgs[3] do
while turtle.digUp() == true do
sleep(0.4)
end
turtle.up()
end

for i = 1, tArgs[3] do
while turtle.down() == false do
turtle.attackDown()
turtle.attack()

end
end
end


function leftStairs()

turtle.turnRight()

for i = 1, tArgs[2] do
heightDig()
forwardDig()
ReturnPoint()

end
end

function rightStairs()

turtle.turnLeft()

for i = 1, tArgs[2] do
heightDig()
forwardDig()
ReturnPoint()

end
end

function middleStairs()

end