startup

local oldState = rs.getBundledInput("front")

local colName = {"White", "Orange", "Magenta", "Light Blue", "Yellow", "Lime", "Pink", "Grey", "Light Grey", "Cyan", "Purple", "Blue", "Brown", "Green", "Red", "Black"}

print("Online")

repeat
        local event, p1 = os.pullEvent()

        if event == "redstone" then
                local curState,  checkCol = rs.getBundledInput("front"), 1

                for i = 1, 16 do
                        local curOn, oldOn = colours.test(curState, checkCol), colours.test(oldState, checkCol)

                        if curOn and not oldOn then
                                print(colName[i] .. " turned on.")
                        elseif not curOn and oldOn then
                                print(colName[i] .. " turned off.")
                        end

                        checkCol = checkCol * 2
                end

                oldState = curState
        end
until event == "key" and p1 == keys.x