Function RenderMine

Descent3/render.cpp:3421–3511

Draws the mine, starting at a the specified room The rendering surface must be set up, and g3_StartFrame() must have been called Parameters: viewer_roomnum - what room the viewer is in flag_automap - if true, flag segments as visited when rendered called_from_terrain - set if calling this routine from the terrain renderer

//					flag_automap - if true, flag segments as visited when rendered
//					called_from_terrain - set if calling this routine from the terrain renderer
void RenderMine(int viewer_roomnum, int flag_automap, int called_from_terrain) {
#ifdef EDITOR
  In_editor_mode = (GetFunctionMode() == EDITOR_MODE);
#endif
  // check to see if we should render windows
  if (No_render_windows_hack == -1) {
    if (FindArg("-NoRenderWindows"))
      No_render_windows_hack = 1;
    else
      No_render_windows_hack = 0;
  }
  // Get the viewer eye so functions down the line can look at it
  g3_GetViewPosition(&Viewer_eye);
  g3_GetUnscaledMatrix(&Viewer_orient);
  // set these globals so functions down the line can look at them
  Viewer_roomnum = viewer_roomnum;
  Flag_automap = flag_automap;
  Called_from_terrain = called_from_terrain;
  // Assume no terrain
  Must_render_terrain = 0;

  // Get the width & height of the render window
  rend_GetProjectionParameters(&Render_width, &Render_height);
  if (!Called_from_terrain) {
    Terrain_portal_top = Render_height;
    Terrain_portal_bottom = 0;
    Terrain_portal_right = 0;
    Terrain_portal_left = Render_width;
  }
  // Build the list of visible rooms
  BuildRoomList(viewer_roomnum); // fills in Render_list & N_render_segs

  // If we determined that the terrain is visible, render it
  if (Must_render_terrain && !Called_from_terrain && !(In_editor_mode && Render_inside_only)) {
    RenderTerrain(1, Terrain_portal_left, Terrain_portal_top, Terrain_portal_right, Terrain_portal_bottom);
    // Mark all room points to be rerotated due to terrain trashing our point list
    for (int i = 0; i <= Highest_room_index; i++) {
      Rooms[i].wpb_index = -1;
      Global_buffer_index = 0;
    }
    // Setup fog if needed
    g3_SetFarClipZ(VisibleTerrainZ);

    if ((Terrain_sky.flags & TF_FOG) && (UseHardware || (!UseHardware && Lighting_on))) {
      rend_SetZValues(0, VisibleTerrainZ);
      rend_SetFogState(1);
      rend_SetFogBorders(VisibleTerrainZ * .85, VisibleTerrainZ);
      rend_SetFogColor(Terrain_sky.fog_color);
    } else
      rend_SetZValues(0, 5000);
  }

  // First render mirrored rooms
  RenderMirrorRooms();

  Num_mirror_rooms = 0;

  // Render the list of rooms