// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using osu.Game.Rulesets.Replays.Types;

namespace osu.Game.Rulesets
{
    public interface ILegacyRuleset
    {
        const int MAX_LEGACY_RULESET_ID = 3;

        /// <summary>
        /// Identifies the server-side ID of a legacy ruleset.
        /// </summary>
        int LegacyID { get; }

        /// <summary>
        /// For rulesets which support legacy (osu-stable) replay conversion, this method will create an empty replay frame
        /// for conversion use.
        /// </summary>
        /// <returns>An empty frame for the current ruleset, or null if unsupported.</returns>
        IConvertibleReplayFrame CreateConvertibleReplayFrame();
    }
}