CC: rfrefuel

print("Refuel v1.0 started!")

function IsCharger()
    success, data = turtle.inspectUp()
    if not success then
        return false
    end
    if data.name == "peripheralsplusone:rf_charger" then
        return true
    end
    return false
end

turtle.turnRight()
while not turtle.forward() do end
while true do
    turtle.turnRight()
    if turtle.detect() then
        turtle.turnLeft()
    else
        turtle.forward()
        break
    end
    if not turtle.forward() then
        turtle.turnRight()
        break
    end
end

local fuelLevel = turtle.getFuelLevel()
local oldfl = fuelLevel
local flmx = turtle.getFuelLimit()

local found = false
while not found do
    if not IsCharger() then
        turtle.forward()
    else
        found = true
    end
end

while true do
    local present = fuelLevel / (flmx / 100)
    print("Fuel: " .. present  .. "%")
    sleep(1)
    term.clear()
    term.setCursorPos(1,1)
    fuelLevel = turtle.getFuelLevel()
    if present == 100 then
        turtle.forward()
    end
end