Method Add

src/signal.cpp:155–168

* Adds tile & dir into the set, checks for full set * Sets the 'overflowed' flag if the set was full * @param tile tile * @param dir and dir to add * @return true iff the item could be added (set wasn't full) */

	 * @return true iff the item could be added (set wasn't full)
	 */
	bool Add(TileIndex tile, Tdir dir)
	{
		if (this->IsFull()) {
			overflowed = true;
			Debug(misc, 0, "SignalSegment too complex. Set {} is full (maximum {})", name, items);
			return false; // set is full
		}

		this->data[this->n].tile = tile;
		this->data[this->n].dir = dir;
		this->n++;

		return true;
	}

	/**
	 * Reads the last added element into the set