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osu-lazer/osu.Game.Rulesets.Osu/Mods/InputBlockingMod.cs

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// 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.Linq;
using osu.Framework.Graphics;
using osu.Framework.Input.Bindings;
using osu.Framework.Input.Events;
using osu.Game.Beatmaps.Timing;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Osu.Objects;
using osu.Game.Rulesets.Osu.UI;
using osu.Game.Rulesets.Scoring;
using osu.Game.Rulesets.UI;
using osu.Game.Screens.Play;
using osu.Game.Utils;
namespace osu.Game.Rulesets.Osu.Mods
{
public abstract partial class InputBlockingMod : Mod, IApplicableToDrawableRuleset<OsuHitObject>, IUpdatableByPlayfield
{
public override double ScoreMultiplier => 1.0;
public override Type[] IncompatibleMods => new[] { typeof(ModAutoplay), typeof(ModRelax), typeof(OsuModCinema) };
public override ModType Type => ModType.Conversion;
private const double flash_duration = 1000;
private DrawableOsuRuleset ruleset = null!;
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protected OsuAction? LastAcceptedAction { get; private set; }
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/// <summary>
/// A tracker for periods where alternate should not be forced (i.e. non-gameplay periods).
/// </summary>
/// <remarks>
/// This is different from <see cref="Player.IsBreakTime"/> in that the periods here end strictly at the first object after the break, rather than the break's end time.
/// </remarks>
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private PeriodTracker nonGameplayPeriods = null!;
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private IFrameStableClock gameplayClock = null!;
public void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
{
ruleset = (DrawableOsuRuleset)drawableRuleset;
ruleset.KeyBindingInputManager.Add(new InputInterceptor(this));
var periods = new List<Period>();
if (drawableRuleset.Objects.Any())
{
periods.Add(new Period(int.MinValue, getValidJudgementTime(ruleset.Objects.First()) - 1));
foreach (BreakPeriod b in drawableRuleset.Beatmap.Breaks)
periods.Add(new Period(b.StartTime, getValidJudgementTime(ruleset.Objects.First(h => h.StartTime >= b.EndTime)) - 1));
static double getValidJudgementTime(HitObject hitObject) => hitObject.StartTime - hitObject.HitWindows.WindowFor(HitResult.Meh);
}
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nonGameplayPeriods = new PeriodTracker(periods);
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gameplayClock = drawableRuleset.FrameStableClock;
}
public void Update(Playfield playfield)
{
if (LastAcceptedAction != null && nonGameplayPeriods.IsInAny(gameplayClock.CurrentTime))
LastAcceptedAction = null;
}
protected abstract bool CheckValidNewAction(OsuAction action);
private bool checkCorrectAction(OsuAction action)
{
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if (nonGameplayPeriods.IsInAny(gameplayClock.CurrentTime))
return true;
switch (action)
{
case OsuAction.LeftButton:
case OsuAction.RightButton:
break;
// Any action which is not left or right button should be ignored.
default:
return true;
}
if (CheckValidNewAction(action))
{
LastAcceptedAction = action;
return true;
}
ruleset.Cursor.FlashColour(Colour4.Red, flash_duration, Easing.OutQuint);
return false;
}
private partial class InputInterceptor : Component, IKeyBindingHandler<OsuAction>
{
private readonly InputBlockingMod mod;
public InputInterceptor(InputBlockingMod mod)
{
this.mod = mod;
}
public bool OnPressed(KeyBindingPressEvent<OsuAction> e)
// if the pressed action is incorrect, block it from reaching gameplay.
=> !mod.checkCorrectAction(e.Action);
public void OnReleased(KeyBindingReleaseEvent<OsuAction> e)
{
}
}
}
}