local xp1,yp1,zp1 = gps.locate()

print("veuillez entrer les coordonnes")
write ("x: ")
xd = read()
write ("\ny: ")
yd = read()
write ("\nz: ")
zd = read()

x = xd - xp1
y = yd - yp1
z = zd - zp1

if x < 0 then
x = x * -1
elseif y < 0 then
y = y * -1
elseif z < 0 then
z = z * -1
end

-- voir dans quel sens est la tortue

turtle.forward()
local xp2,yp2,zp2 = gps.locate()

if xd < xp1 then

	if xp1 > xp2 then
	x = x - 1
	elseif xp1 < xp2 then
	x = x+1
	turtle.turnRight()
	turtle.turnRight()
	elseif xp1 = xp2 and zp1 < zp2 then
	turtle.turnRight()
	z = z + 1
	elseif xp1 = xp2 and zp1 > zp2 then
	turtle.turnLeft()
	z = z - 1
	end

end