// Hello dialog. So the nooblets know the controls
func doHello(stdscr *gc.Window) {
stdscr.Refresh()
y, x := stdscr.MaxYX()
center_x := int(x / 2)
center_y := int(y / 2)
stdscr.MovePrintln(center_y-6, center_x-4, "Controls:")
stdscr.MovePrintln(center_y-5, center_x-12, "Escape: Exit the program.")
stdscr.MovePrintln(center_y-4, center_x-30, "Tab: Switch between the input window and the Message window.")
stdscr.MovePrintln(center_y-3, center_x-11, "Return: Send a message")
stdscr.MovePrintln(center_y-2, center_x-44, `Shift + Right Arrow: put in a new line '\n' character (like shift+return in facebook chat)`)
stdscr.MovePrintln(center_y-1, center_x-30, "Page-Up / Page-Down: Scroll up in the message history window")
}
