osu/osu.Game/Screens/Play/ReplayPlayerLoader.cs

// 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 System;
using osu.Framework.Screens;
using osu.Game.Scoring;

namespace osu.Game.Screens.Play
{
    public class ReplayPlayerLoader : PlayerLoader
    {
        private readonly ScoreInfo scoreInfo;

        public ReplayPlayerLoader(Score score)
            : base(() => new ReplayPlayer(score))
        {
            if (score.Replay == null)
                throw new ArgumentException($"{nameof(score)} must have a non-null {nameof(score.Replay)}.", nameof(score));

            scoreInfo = score.ScoreInfo;
        }

        public override void OnEntering(IScreen last)
        {
            // these will be reverted thanks to PlayerLoader's lease.
            Mods.Value = scoreInfo.Mods;
            Ruleset.Value = scoreInfo.Ruleset;

            base.OnEntering(last);
        }
    }
}