Function RenderScrollingHUDMessages

Descent3/hudmessage.cpp:1076–1192

Renders all the messages we have in the message list. If HUD_MESSAGE_TIME has elapsed, then punt the oldest message and move the others up one

// Renders all the messages we have in the message list.  If HUD_MESSAGE_TIME has
// elapsed, then punt the oldest message and move the others up one
void RenderScrollingHUDMessages() {
  if (Hud_messages_paused)
    return;

  int shade;
  int text_height;
  int16_t l, t, r, b;
  int i;

  // Check for wraps
  if (Gametime < Hud_timer)
    Hud_timer = Gametime;

  grtext_SetFont(HUD_FONT);
  text_height = grfont_GetHeight(HUD_FONT);

  text_height += (3 * Hud_aspect_y); // add this for a spacer

  if (Doing_input_message > HUD_MESSAGE_NONE)
    RenderHUDInputMessage();

  if (Num_hud_messages == 0)
    return;

  l = (Small_hud_flag) ? (Max_window_w / 2) : (Game_window_w / 2);
  r = l;
  t = 0;
  b = 0;
  for (i = 0; i < Num_hud_messages; i++) {
    int x;

    if (HUD_message_type[i] == HUD_MESSAGE_BLINKING) {
      float blink_time = Gametime;
      int iblink = blink_time;
      float frac_blink = blink_time - iblink;

      float answer = frac_blink / .5;

      iblink = answer;

      if (iblink == 1 || iblink == 3)
        continue;
    }

    if (i == 0 && Hud_scroll_offset != 0) {
      int scolor = text_height + Hud_scroll_offset;
      shade = (255 * scolor) / text_height;
    } else
      shade = 255;

    char *message = HUD_messages[i];
    int text_width = grtext_GetTextLineWidth(message);
    int vp_width = Game_window_w;
    int y = (i * text_height) + Hud_scroll_offset;

    if (HUD_message_type[i] == HUD_MESSAGE_BLINKING) {
      ddgr_color text_color;
      text_color = (GR_RGB(shade, 0, 0));