ShowGameMessage(<-message <-buttonText <-button2Text <-pauseGame <-messagechannel)

Shows a game message.
message: The string message to show.
buttonText: Text for the first button. If empty the button is not shown.
button2Text: Text for the second button. If empty the button is not shown.
pauseGame: Bool indicating if the game should be auto paused.
messageChannel: The message channel to message when a button is clicked.