Code: Select all
require "defines"
game.on_event(defines.events.on_player_created, function(event)
game.get_player(event.player_index).gui.left.add{type="button", name="bla", caption="bla"}
end)
num = 0
game.on_event(defines.events.on_gui_click, function(event)
num = num + 1
print("on_gui_click called "..tostring(num).." times")
if num >= 5 then err() end
end)