arbre = function()
turtle.refuel(2)
test = 1
hauteur = 0

while test == 1 do

sucess, data = turtle.inspect()
if data.name == "minecraft:leaves" then
test = 0
elseif data.name == "" then
test = 0
elseif data.name == "minecraft:log" then
hauteur = hauteur + 1
end

if test == 1 then
turtle.dig()
turtle.digUp()
turtle.up()
end

end


for h = 0,hauteur do
turtle.down()
end
end
check_cube= function()
sucesss, data = turtle.inspect()
cube = data.name
if cube == "minecraft:log" then
arbre()
end
end

while true do
fuel = turtle.getFuelLevel()
if fuel < 60 then
turtle.select(1)
turtle.refuel(1)
end

turtle.forward()
turtle.turnLeft()
check_cube()
turtle.turnRight()
turtle.turnRight()
check_cube()
turtle.turnLeft()

if turtle.detect() then
turtle.turnLeft()
end
end