Method InternalPostBefore

src/command.cpp:207–227

* Decide what to do with the command depending on current game state. * @param cmd Command to execute. * @param flags Command flags. * @param tile Tile of command execution. * @param err_message Message prefix to show on error. * @param network_command Does this command come from the network? * @return error state + do only cost estimation? + send to network only? */

 * @return error state + do only cost estimation? + send to network only?
 */
std::tuple<bool, bool, bool> CommandHelperBase::InternalPostBefore(Commands cmd, CommandFlags flags, TileIndex tile, StringID err_message, bool network_command)
{
	/* Cost estimation is generally only done when the
	 * local user presses shift while doing something.
	 * However, in case of incoming network commands,
	 * map generation or the pause button we do want
	 * to execute. */
	bool estimate_only = _shift_pressed && IsLocalCompany() && !_generating_world && !network_command && !flags.Test(CommandFlag::NoEst);

	/* We're only sending the command, so don't do
	 * fancy things for 'success'. */
	bool only_sending = _networking && !network_command;

	if (_pause_mode.Any() && !IsCommandAllowedWhilePaused(cmd) && !estimate_only) {
		ShowErrorMessage(GetEncodedString(err_message), GetEncodedString(STR_ERROR_NOT_ALLOWED_WHILE_PAUSED),
			WL_INFO, TileX(tile) * TILE_SIZE, TileY(tile) * TILE_SIZE);
		return { true, estimate_only, only_sending };
	} else {
		return { false, estimate_only, only_sending };
	}
}

/**
 * Process result of executing a command, possibly displaying any error to the player.