Function CmdMoveSign

src/signs_cmd.cpp:106–126

* Move a sign to the given coordinates. 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 moved * @param tile tile to place the sign at * @return the cost of this operation or an error */

 * @return the cost of this operation or an error
 */
CommandCost CmdMoveSign(DoCommandFlags flags, SignID sign_id, TileIndex tile)
{
	Sign *si = Sign::GetIfValid(sign_id);
	if (si == nullptr) return CMD_ERROR;
	if (!CompanyCanEditSign(si)) return CMD_ERROR;

	/* Move the sign */
	if (flags.Test(DoCommandFlag::Execute)) {
		int x = TileX(tile) * TILE_SIZE;
		int y = TileY(tile) * TILE_SIZE;

		si->x = x;
		si->y = y;
		si->z = GetSlopePixelZ(x, y);
		if (_game_mode != GM_EDITOR) si->owner = _current_company;

		si->UpdateVirtCoord();
	}

	return CommandCost();
}

/**
 * Callback function that is called after a sign is placed