Nouveau minage

local function printUsage()
    print( "Usage:" )
    print( "minage <distance par shafts>" )
end

local function refuel()
    shell.run("refuel", "all")
    turtle.select(1)
    if turtle.getFuelLevel() == 0 then return false end
end

local function digforward()
    if turtle.getFuelLevel() > 0 then
        turtle.digUp()
        while turtle.detect() do turtle.dig() sleep(0.5) end
        while turtle.detectUp() do turtle.digUp() sleep(0.5) end
        local walked = turtle.forward()
        if not walked then
            print("ERREUR : Impossible d'avancer plus")
            if turtle.detect() then
                print("Il y a un bloc")
                digforward()
                if turtle.detectDown() == false then turtle.placeDown() end
                return true
            else
                print("ERREUR : Il doit y avoir un mob.")
                while true do
                    turtle.attack()
                    walked = turtle.forward()
                    if turtle.detectDown() == false then turtle.placeDown() end
                    if walked == true then break end
                end
                print("SUCCES : Mob disparu")
                return true
            end
            return false
        end
        if turtle.detectDown() == false then turtle.placeDown() end
        return true
        else
        print("Manque d'energie. Tentative de refuel.")
        if refuel() == false then
            print("ERREUR : Plus de fuel.")
            return false
        end
    end
end

local tArgs = { ... }
if #tArgs == 0 then
    printUsage()
    return
end
local goal = tonumber(tArgs[1])-1
turtle.select(2)


while true do
    chemin = 0
    while chemin <= goal do
        if digforward() == false then return
        else
            chemin = chemin+1
        end
    end
    turtle.turnRight()
    turtle.turnRight()
    chemin = 0
    while chemin <= goal do
        if digforward() == false then return
        else
            chemin = chemin+1
        end
    end
    turtle.turnLeft()
    for i=0,3 do
        local walked = turtle.forward()
        if not walked then print("ERREUR : Fin du tunnel") return end
    end
    turtle.turnLeft()
end