osu/osu.Game/Rulesets/RulesetConfigCache.cs

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2018-06-11 06:07:42 +00:00
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Collections.Generic;
using osu.Framework.Graphics;
using osu.Game.Configuration;
using osu.Game.Rulesets.Configuration;
namespace osu.Game.Rulesets
{
/// <summary>
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/// A cache that provides a single <see cref="IRulesetConfigManager"/> per-ruleset.
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/// This is done to support referring to and updating ruleset configs from multiple locations in the absence of inter-config bindings.
/// </summary>
public class RulesetConfigCache : Component
{
private readonly Dictionary<int, IRulesetConfigManager> configCache = new Dictionary<int, IRulesetConfigManager>();
private readonly SettingsStore settingsStore;
public RulesetConfigCache(SettingsStore settingsStore)
{
this.settingsStore = settingsStore;
}
/// <summary>
/// Retrieves the <see cref="IRulesetConfigManager"/> for a <see cref="Ruleset"/>.
/// </summary>
/// <param name="ruleset">The <see cref="Ruleset"/> to retrieve the <see cref="IRulesetConfigManager"/> for.</param>
/// <returns>The <see cref="IRulesetConfigManager"/> defined by <paramref name="ruleset"/>, null if <paramref name="ruleset"/> doesn't define one.</returns>
/// <exception cref="InvalidOperationException">If <paramref name="ruleset"/> doesn't have a valid <see cref="RulesetInfo.ID"/>.</exception>
public IRulesetConfigManager GetConfigFor(Ruleset ruleset)
{
if (ruleset.RulesetInfo.ID == null)
throw new InvalidOperationException("The provided ruleset doesn't have a valid id.");
if (configCache.TryGetValue(ruleset.RulesetInfo.ID.Value, out var existing))
return existing;
return configCache[ruleset.RulesetInfo.ID.Value] = ruleset.CreateConfig(settingsStore);
}
}
}