osukey/osu.Game/Audio/HitSampleInfo.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 System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;

namespace osu.Game.Audio
{
    /// <summary>
    /// Describes a gameplay hit sample.
    /// </summary>
    [Serializable]
    public class HitSampleInfo : ISampleInfo, IEquatable<HitSampleInfo>
    {
        public const string HIT_WHISTLE = @"hitwhistle";
        public const string HIT_FINISH = @"hitfinish";
        public const string HIT_NORMAL = @"hitnormal";
        public const string HIT_CLAP = @"hitclap";

        /// <summary>
        /// All valid sample addition constants.
        /// </summary>
        public static IEnumerable<string> AllAdditions => new[] { HIT_WHISTLE, HIT_CLAP, HIT_FINISH };

        /// <summary>
        /// The bank to load the sample from.
        /// </summary>
        public string Bank;

        /// <summary>
        /// The name of the sample to load.
        /// </summary>
        public string Name;

        /// <summary>
        /// An optional suffix to provide priority lookup. Falls back to non-suffixed <see cref="Name"/>.
        /// </summary>
        public string Suffix;

        /// <summary>
        /// The sample volume.
        /// </summary>
        public int Volume { get; set; }

        /// <summary>
        /// Retrieve all possible filenames that can be used as a source, returned in order of preference (highest first).
        /// </summary>
        public virtual IEnumerable<string> LookupNames
        {
            get
            {
                if (!string.IsNullOrEmpty(Suffix))
                    yield return $"Gameplay/{Bank}-{Name}{Suffix}";

                yield return $"Gameplay/{Bank}-{Name}";
            }
        }

        public HitSampleInfo Clone() => (HitSampleInfo)MemberwiseClone();

        public bool Equals(HitSampleInfo other)
            => other != null && Bank == other.Bank && Name == other.Name && Suffix == other.Suffix;

        public override bool Equals(object obj)
            => obj is HitSampleInfo other && Equals(other);

        [SuppressMessage("ReSharper", "NonReadonlyMemberInGetHashCode")] // This will have to be addressed eventually
        public override int GetHashCode()
        {
            return HashCode.Combine(Bank, Name, Suffix);
        }
    }
}