dig1.lua

--[[
    Digging routine for hole expansion
]]--

-- empties inventory and returns to the position it was
function emptyInv()

end

-- inventory check
function spaceCheck()
    local invSlots = robot.inventorySize()
    for i=1, i<= invSlots, 1 do
        if robot.count(i) == 0 then
            return
        end
    end
    -- if this executes, the inventory is full
    print("Inventory full, going to the storage system.")
    emptyInv()
end

-- energy check
function energyCheck()
    local maxEnergy = computer.maxEnergy()
    local energy = computer.energy()
    local minLevel = maxEnergy * 0.1
    if(energy < minLevel) then
        print("Energy low, going to charge.")
        -- TODO returning to the charger
    end
end

-- goes to the initial position
function goToInitial()

end

-- moves to the next position to mine
function move()

end

-- mines the block upwards or stores the liquid upwards
function mine()
    robot.swingUp()
    robot.drainUp()
end

-- main execution
function main()
    goToInitial()
    local end = false
    while(not end)
        energyCheck()
        spaceCheck()
        mine()
        end = move()
    end
end

print("Starting digging routine")
main()
print("Ending digging routine")