Function CmdRenameSign

src/signs_cmd.cpp:67–96

* Rename a sign. If the new name of the sign is empty, we assume * the user wanted to delete it. So delete it. Ownership of signs * has no meaning/effect whatsoever except for eyecandy * @param flags type of operation * @param sign_id index of the sign to be renamed/removed * @param text the new name or an empty string when resetting to the default * @return the cost of this operation or an

 * @return the cost of this operation or an error
 */
CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::string &text)
{
	Sign *si = Sign::GetIfValid(sign_id);
	if (si == nullptr) return CMD_ERROR;
	if (!CompanyCanEditSign(si)) return CMD_ERROR;

	/* Rename the signs when empty, otherwise remove it */
	if (!text.empty()) {
		if (Utf8StringLength(text) >= MAX_LENGTH_SIGN_NAME_CHARS) return CMD_ERROR;

		if (flags.Test(DoCommandFlag::Execute)) {
			/* Assign the new one */
			si->name = text;
			if (_game_mode != GM_EDITOR) si->owner = _current_company;

			si->UpdateVirtCoord();
			InvalidateWindowData(WC_SIGN_LIST, 0, 1);
		}
	} else { // Delete sign
		if (flags.Test(DoCommandFlag::Execute)) {
			si->sign.MarkDirty();
			if (si->sign.kdtree_valid) _viewport_sign_kdtree.Remove(ViewportSignKdtreeItem::MakeSign(si->index));
			delete si;

			InvalidateWindowData(WC_SIGN_LIST, 0, 0);
		}
	}

	return CommandCost();
}

/**
 * Move a sign to the given coordinates. Ownership of signs