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osu-lazer/osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.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.
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using JetBrains.Annotations;
using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
using osu.Game.Rulesets.Objects.Drawables;
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using osu.Game.Rulesets.UI.Scrolling;
using osu.Game.Rulesets.Mania.UI;
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namespace osu.Game.Rulesets.Mania.Objects.Drawables
{
public abstract class DrawableManiaHitObject : DrawableHitObject<ManiaHitObject>
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{
/// <summary>
/// The <see cref="ManiaAction"/> which causes this <see cref="DrawableManiaHitObject{TObject}"/> to be hit.
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/// </summary>
protected readonly IBindable<ManiaAction> Action = new Bindable<ManiaAction>();
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protected readonly IBindable<ScrollingDirection> Direction = new Bindable<ScrollingDirection>();
[Resolved(canBeNull: true)]
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private ManiaPlayfield playfield { get; set; }
protected override float SamplePlaybackPosition
{
get
{
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if (playfield == null)
return base.SamplePlaybackPosition;
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return (float)HitObject.Column / playfield.TotalColumns;
}
}
protected DrawableManiaHitObject(ManiaHitObject hitObject)
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: base(hitObject)
{
}
[BackgroundDependencyLoader(true)]
private void load([CanBeNull] IBindable<ManiaAction> action, [NotNull] IScrollingInfo scrollingInfo)
{
if (action != null)
Action.BindTo(action);
Direction.BindTo(scrollingInfo.Direction);
Direction.BindValueChanged(OnDirectionChanged, true);
}
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private double computedLifetimeStart;
public override double LifetimeStart
{
get => base.LifetimeStart;
set
{
computedLifetimeStart = value;
if (!AlwaysAlive)
base.LifetimeStart = value;
}
}
private double computedLifetimeEnd;
public override double LifetimeEnd
{
get => base.LifetimeEnd;
set
{
computedLifetimeEnd = value;
if (!AlwaysAlive)
base.LifetimeEnd = value;
}
}
private bool alwaysAlive;
/// <summary>
/// Whether this <see cref="DrawableManiaHitObject"/> should always remain alive.
/// </summary>
internal bool AlwaysAlive
{
get => alwaysAlive;
set
{
if (alwaysAlive == value)
return;
alwaysAlive = value;
if (value)
{
// Set the base lifetimes directly, to avoid mangling the computed lifetimes
base.LifetimeStart = double.MinValue;
base.LifetimeEnd = double.MaxValue;
}
else
{
LifetimeStart = computedLifetimeStart;
LifetimeEnd = computedLifetimeEnd;
}
}
}
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protected virtual void OnDirectionChanged(ValueChangedEvent<ScrollingDirection> e)
{
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Anchor = Origin = e.NewValue == ScrollingDirection.Up ? Anchor.TopCentre : Anchor.BottomCentre;
}
protected override void UpdateStateTransforms(ArmedState state)
{
switch (state)
{
case ArmedState.Miss:
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this.FadeOut(150, Easing.In);
break;
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case ArmedState.Hit:
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this.FadeOut(150, Easing.OutQuint);
break;
}
}
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}
public abstract class DrawableManiaHitObject<TObject> : DrawableManiaHitObject
where TObject : ManiaHitObject
{
public new readonly TObject HitObject;
protected DrawableManiaHitObject(TObject hitObject)
: base(hitObject)
{
HitObject = hitObject;
}
}
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}