Function TelcomDisplayStatic

Descent3/TelCom.cpp:2208–2252

Displays static on the screen

//	Displays static on the screen
void TelcomDisplayStatic(float alpha) {
  int x, y;
  int height = (Telcom_system.Monitor_coords[MONITOR_MAIN].bottom) - (Telcom_system.Monitor_coords[MONITOR_MAIN].top);
  int width = (Telcom_system.Monitor_coords[MONITOR_MAIN].right) - (Telcom_system.Monitor_coords[MONITOR_MAIN].left);
  int type;

  if (alpha < 0)
    alpha = 0;
  if (alpha > 1)
    alpha = 1;

  type = (int)myrand(21);
  if ((type < 7))
    type = 0;
  else if ((type < 14))
    type = 4;
  else
    type = 8;

  int xoff = Telcom_system.Monitor_coords[MONITOR_MAIN].left;
  int yoff = Telcom_system.Monitor_coords[MONITOR_MAIN].top;

  rend_SetAlphaType(AT_CONSTANT_TEXTURE);
  rend_SetAlphaValue(alpha * 255.0);
  rend_SetLighting(LS_NONE);
  rend_SetColorModel(CM_MONO);
  rend_SetOverlayType(OT_NONE);
  rend_SetWrapType(WT_CLAMP);
  rend_SetFiltering(0);

  int dy = ((int)myrand(32)) - 16;

  int h = bm_h(StaticBmps[type], 0);
  int w = bm_w(StaticBmps[type], 0);
  int j = 0;
  for (y = dy; y < height; y += h)
    for (x = 0; x < width; x += w) {
      rend_DrawScaledBitmap(x + xoff, y + yoff, x + w + xoff, y + h + yoff, StaticBmps[type + (j % 4)], 0, 0, 1, 1);
      h = bm_h(StaticBmps[type + (j % 4)], 0);
      w = bm_w(StaticBmps[type + (j % 4)], 0);
      j++;
    }

  rend_SetFiltering(1);
}

//	Frees the mouse cursor
void TelcomFreeMouseCursor(void) {