local event = require "event" -- load event table and store the pointer to it in event

local char_space = string.byte(" ") -- numerical representation of the space char
local running = true -- state variable so the loop can terminate

function unknownEvent()
  -- do nothing if the event wasn't relevant
end

-- table that holds all event handlers
-- in case no match can be found returns the dummy function unknownEvent
local myEventHandlers = setmetatable({}, { __index = function() return unknownEvent end })

-- Example key-handler that simply sets running to false if the user hits space
function myEventHandlers.key_up(adress, char, code, playerName)
  if (char == char_space) then
    running = false
  end
end

-- The main event handler as function to separate eventID from the remaining arguments
function handleEvent(eventID, ...)
  if (eventID) then -- can be nil if no event was pulled for some time
    myEventHandlers[eventID](...) -- call the appropriate event handler with all remaining arguments
  end
end

-- main event loop which processes all events, or sleeps if there is nothing to do
while running do
  handleEvent(event.pull()) -- sleeps until an event is available, then process it
end