EngFunc_AlertMessage
Prints an alert message.
engfunc(EngFunc_AlertMessage, AlertType, const Message)
AlertType can be: at_notice - at_console - same as at_notice, but forces a ConPrintf, not a message box, prints output to server console, but only if 'developer' is 1. at_aiconsole - same as at_console, but only shown if 'developer' is 2. at_warning - at_error - at_logged - prints output to server logs and console.