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osu-lazer/osu.Game/Rulesets/RulesetInfo.cs
Bartłomiej Dach 628e7a71ed Ignore possible nulls in Type.GetType() calls
They're mostly used in extensibility scenarios, so everything happens in
runtime. There is no better resolution than to crash with a null
reference exception.
2021-05-15 00:09:34 +02:00

59 lines
2.0 KiB
C#

// 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.Diagnostics.CodeAnalysis;
using Newtonsoft.Json;
using osu.Framework.Extensions.ObjectExtensions;
using osu.Framework.Testing;
namespace osu.Game.Rulesets
{
[ExcludeFromDynamicCompile]
public class RulesetInfo : IEquatable<RulesetInfo>
{
public int? ID { get; set; }
public string Name { get; set; }
public string ShortName { get; set; }
public string InstantiationInfo { get; set; }
[JsonIgnore]
public bool Available { get; set; }
// TODO: this should probably be moved to RulesetStore.
public virtual Ruleset CreateInstance()
{
if (!Available) return null;
var ruleset = (Ruleset)Activator.CreateInstance(Type.GetType(InstantiationInfo).AsNonNull());
// overwrite the pre-populated RulesetInfo with a potentially database attached copy.
ruleset.RulesetInfo = this;
return ruleset;
}
public bool Equals(RulesetInfo other) => other != null && ID == other.ID && Available == other.Available && Name == other.Name && InstantiationInfo == other.InstantiationInfo;
public override bool Equals(object obj) => obj is RulesetInfo rulesetInfo && Equals(rulesetInfo);
[SuppressMessage("ReSharper", "NonReadonlyMemberInGetHashCode")]
public override int GetHashCode()
{
unchecked
{
var hashCode = ID.HasValue ? ID.GetHashCode() : 0;
hashCode = (hashCode * 397) ^ (InstantiationInfo != null ? InstantiationInfo.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (Name != null ? Name.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ Available.GetHashCode();
return hashCode;
}
}
public override string ToString() => Name ?? $"{Name} ({ShortName}) ID: {ID}";
}
}