Function LoadTTDPatchExtraChunks

src/saveload/oldloader_sl.cpp:1565–1619

}

static bool LoadTTDPatchExtraChunks(LoadgameState &ls, int)
{
	ReadTTDPatchFlags(ls);

	Debug(oldloader, 2, "Found {} extra chunk(s)", _old_extra_chunk_nums);

	for (int i = 0; i != _old_extra_chunk_nums; i++) {
		uint16_t id = ReadUint16(ls);
		uint32_t len = ReadUint32(ls);

		switch (id) {
			/* List of GRFIDs, used in the savegame. 0x8004 is the new ID
			 * They are saved in a 'GRFID:4 active:1' format, 5 bytes for each entry */
			case 0x2:
			case 0x8004: {
				/* Skip the first element: TTDP hack for the Action D special variables (FFFF0000 01) */
				ReadUint32(ls); ReadByte(ls); len -= 5;

				ClearGRFConfigList(_grfconfig);
				while (len != 0) {
					uint32_t grfid = ReadUint32(ls);

					if (ReadByte(ls) == 1) {
						auto c = std::make_unique<GRFConfig>("TTDP game, no information");
						c->ident.grfid = grfid;

						Debug(oldloader, 3, "TTDPatch game using GRF file with GRFID {:08X}", std::byteswap(c->ident.grfid));
						AppendToGRFConfigList(_grfconfig, std::move(c));
					}
					len -= 5;
				}

				/* Append static NewGRF configuration */
				AppendStaticGRFConfigs(_grfconfig);
				break;
			}

			/* TTDPatch version and configuration */
			case 0x3:
				_ttdp_version = ReadUint32(ls);
				Debug(oldloader, 3, "Game saved with TTDPatch version {}.{}.{} r{}",
					GB(_ttdp_version, 24, 8), GB(_ttdp_version, 20, 4), GB(_ttdp_version, 16, 4), GB(_ttdp_version, 0, 16));
				len -= 4;
				while (len-- != 0) ReadByte(ls); // skip the configuration
				break;

			default:
				Debug(oldloader, 4, "Skipping unknown extra chunk {}", id);
				while (len-- != 0) ReadByte(ls);
				break;
		}
	}

	return true;
}

extern TileIndex _cur_tileloop_tile;
extern uint16_t _disaster_delay;