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458 lines
16 KiB
C#
458 lines
16 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.Linq;
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using osu.Framework.Allocation;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Input.Bindings;
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using osu.Framework.MathUtils;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets.Catch.Judgements;
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using osu.Game.Rulesets.Catch.Objects;
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using osu.Game.Rulesets.Catch.Objects.Drawable;
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using osu.Game.Rulesets.Catch.Replays;
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using osu.Game.Rulesets.Judgements;
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using osu.Game.Rulesets.Objects.Drawables;
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using osu.Game.Rulesets.UI;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Rulesets.Catch.UI
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{
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public class CatcherArea : Container
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{
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public const float CATCHER_SIZE = 106.75f;
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protected internal readonly Catcher MovableCatcher;
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public Func<CatchHitObject, DrawableHitObject<CatchHitObject>> CreateDrawableRepresentation;
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public Container ExplodingFruitTarget
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{
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set => MovableCatcher.ExplodingFruitTarget = value;
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}
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public CatcherArea(BeatmapDifficulty difficulty = null)
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{
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RelativeSizeAxes = Axes.X;
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Height = CATCHER_SIZE;
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Child = MovableCatcher = new Catcher(difficulty)
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{
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AdditiveTarget = this,
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};
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}
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private DrawableCatchHitObject lastPlateableFruit;
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public void OnResult(DrawableCatchHitObject fruit, JudgementResult result)
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{
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void runAfterLoaded(Action action)
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{
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if (lastPlateableFruit == null)
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return;
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// this is required to make this run after the last caught fruit runs updateState() at least once.
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// TODO: find a better alternative
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if (lastPlateableFruit.IsLoaded)
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action();
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else
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lastPlateableFruit.OnLoadComplete += _ => action();
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}
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if (result.IsHit && fruit.CanBePlated)
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{
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var caughtFruit = (DrawableCatchHitObject)CreateDrawableRepresentation?.Invoke(fruit.HitObject);
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if (caughtFruit == null) return;
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caughtFruit.RelativePositionAxes = Axes.None;
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caughtFruit.Position = new Vector2(MovableCatcher.ToLocalSpace(fruit.ScreenSpaceDrawQuad.Centre).X - MovableCatcher.DrawSize.X / 2, 0);
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caughtFruit.IsOnPlate = true;
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caughtFruit.Anchor = Anchor.TopCentre;
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caughtFruit.Origin = Anchor.Centre;
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caughtFruit.Scale *= 0.7f;
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caughtFruit.LifetimeStart = caughtFruit.HitObject.StartTime;
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caughtFruit.LifetimeEnd = double.MaxValue;
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MovableCatcher.Add(caughtFruit);
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lastPlateableFruit = caughtFruit;
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if (!fruit.StaysOnPlate)
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runAfterLoaded(() => MovableCatcher.Explode(caughtFruit));
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}
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if (fruit.HitObject.LastInCombo)
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{
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if (((CatchJudgement)result.Judgement).ShouldExplodeFor(result))
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runAfterLoaded(() => MovableCatcher.Explode());
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else
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MovableCatcher.Drop();
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}
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}
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protected override void UpdateAfterChildren()
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{
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base.UpdateAfterChildren();
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var state = (GetContainingInputManager().CurrentState as RulesetInputManagerInputState<CatchAction>)?.LastReplayState as CatchFramedReplayInputHandler.CatchReplayState;
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if (state?.CatcherX != null)
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MovableCatcher.X = state.CatcherX.Value;
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}
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public bool OnReleased(CatchAction action) => false;
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public bool AttemptCatch(CatchHitObject obj) => MovableCatcher.AttemptCatch(obj);
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public static float GetCatcherSize(BeatmapDifficulty difficulty)
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{
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return CATCHER_SIZE / CatchPlayfield.BASE_WIDTH * (1.0f - 0.7f * (difficulty.CircleSize - 5) / 5);
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}
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public class Catcher : Container, IKeyBindingHandler<CatchAction>
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{
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/// <summary>
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/// Width of the area that can be used to attempt catches during gameplay.
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/// </summary>
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internal float CatchWidth => CATCHER_SIZE * Math.Abs(Scale.X);
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private Container<DrawableHitObject> caughtFruit;
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public Container ExplodingFruitTarget;
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public Container AdditiveTarget;
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public Catcher(BeatmapDifficulty difficulty = null)
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{
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RelativePositionAxes = Axes.X;
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X = 0.5f;
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Origin = Anchor.TopCentre;
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Anchor = Anchor.TopLeft;
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Size = new Vector2(CATCHER_SIZE);
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if (difficulty != null)
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Scale = new Vector2(1.0f - 0.7f * (difficulty.CircleSize - 5) / 5);
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}
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[BackgroundDependencyLoader]
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private void load()
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{
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Children = new[]
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{
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caughtFruit = new Container<DrawableHitObject>
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{
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Anchor = Anchor.TopCentre,
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Origin = Anchor.BottomCentre,
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},
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createCatcherSprite(),
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};
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}
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private int currentDirection;
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private bool dashing;
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protected bool Dashing
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{
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get => dashing;
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set
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{
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if (value == dashing) return;
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dashing = value;
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Trail |= dashing;
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}
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}
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private bool trail;
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/// <summary>
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/// Activate or deactive the trail. Will be automatically deactivated when conditions to keep the trail displayed are no longer met.
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/// </summary>
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protected bool Trail
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{
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get => trail;
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set
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{
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if (value == trail) return;
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trail = value;
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if (Trail)
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beginTrail();
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}
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}
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private void beginTrail()
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{
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Trail &= dashing || HyperDashing;
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Trail &= AdditiveTarget != null;
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if (!Trail) return;
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var additive = createCatcherSprite();
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additive.Anchor = Anchor;
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additive.OriginPosition = additive.OriginPosition + new Vector2(DrawWidth / 2, 0); // also temporary to align sprite correctly.
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additive.Position = Position;
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additive.Scale = Scale;
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additive.Colour = HyperDashing ? Color4.Red : Color4.White;
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additive.RelativePositionAxes = RelativePositionAxes;
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additive.Blending = BlendingParameters.Additive;
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AdditiveTarget.Add(additive);
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additive.FadeTo(0.4f).FadeOut(800, Easing.OutQuint);
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additive.Expire(true);
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Scheduler.AddDelayed(beginTrail, HyperDashing ? 25 : 50);
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}
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private Drawable createCatcherSprite() => new CatcherSprite();
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/// <summary>
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/// Add a caught fruit to the catcher's stack.
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/// </summary>
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/// <param name="fruit">The fruit that was caught.</param>
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public void Add(DrawableHitObject fruit)
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{
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float ourRadius = fruit.DrawSize.X / 2 * fruit.Scale.X;
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float theirRadius = 0;
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const float allowance = 6;
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while (caughtFruit.Any(f =>
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f.LifetimeEnd == double.MaxValue &&
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Vector2Extensions.Distance(f.Position, fruit.Position) < (ourRadius + (theirRadius = f.DrawSize.X / 2 * f.Scale.X)) / (allowance / 2)))
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{
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float diff = (ourRadius + theirRadius) / allowance;
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fruit.X += (RNG.NextSingle() - 0.5f) * 2 * diff;
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fruit.Y -= RNG.NextSingle() * diff;
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}
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fruit.X = MathHelper.Clamp(fruit.X, -CATCHER_SIZE / 2, CATCHER_SIZE / 2);
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caughtFruit.Add(fruit);
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}
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/// <summary>
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/// Let the catcher attempt to catch a fruit.
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/// </summary>
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/// <param name="fruit">The fruit to catch.</param>
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/// <returns>Whether the catch is possible.</returns>
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public bool AttemptCatch(CatchHitObject fruit)
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{
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float halfCatchWidth = CatchWidth * 0.5f;
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// this stuff wil disappear once we move fruit to non-relative coordinate space in the future.
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var catchObjectPosition = fruit.X * CatchPlayfield.BASE_WIDTH;
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var catcherPosition = Position.X * CatchPlayfield.BASE_WIDTH;
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var validCatch =
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catchObjectPosition >= catcherPosition - halfCatchWidth &&
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catchObjectPosition <= catcherPosition + halfCatchWidth;
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if (validCatch && fruit.HyperDash)
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{
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var target = fruit.HyperDashTarget;
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double timeDifference = target.StartTime - fruit.StartTime;
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double positionDifference = target.X * CatchPlayfield.BASE_WIDTH - catcherPosition;
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double velocity = positionDifference / Math.Max(1.0, timeDifference - 1000.0 / 60.0);
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SetHyperDashState(Math.Abs(velocity), target.X);
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}
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else
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{
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SetHyperDashState();
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}
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return validCatch;
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}
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private double hyperDashModifier = 1;
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private int hyperDashDirection;
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private float hyperDashTargetPosition;
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/// <summary>
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/// Whether we are hyper-dashing or not.
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/// </summary>
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public bool HyperDashing => hyperDashModifier != 1;
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/// <summary>
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/// Set hyper-dash state.
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/// </summary>
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/// <param name="modifier">The speed multiplier. If this is less or equals to 1, this catcher will be non-hyper-dashing state.</param>
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/// <param name="targetPosition">When this catcher crosses this position, this catcher ends hyper-dashing.</param>
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public void SetHyperDashState(double modifier = 1, float targetPosition = -1)
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{
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const float hyper_dash_transition_length = 180;
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bool previouslyHyperDashing = HyperDashing;
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if (modifier <= 1 || X == targetPosition)
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{
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hyperDashModifier = 1;
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hyperDashDirection = 0;
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if (previouslyHyperDashing)
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{
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this.FadeColour(Color4.White, hyper_dash_transition_length, Easing.OutQuint);
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this.FadeTo(1, hyper_dash_transition_length, Easing.OutQuint);
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Trail &= Dashing;
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}
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}
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else
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{
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hyperDashModifier = modifier;
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hyperDashDirection = Math.Sign(targetPosition - X);
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hyperDashTargetPosition = targetPosition;
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if (!previouslyHyperDashing)
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{
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this.FadeColour(Color4.OrangeRed, hyper_dash_transition_length, Easing.OutQuint);
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this.FadeTo(0.2f, hyper_dash_transition_length, Easing.OutQuint);
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Trail = true;
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}
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}
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}
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public bool OnPressed(CatchAction action)
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{
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switch (action)
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{
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case CatchAction.MoveLeft:
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currentDirection--;
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return true;
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case CatchAction.MoveRight:
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currentDirection++;
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return true;
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case CatchAction.Dash:
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Dashing = true;
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return true;
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}
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return false;
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}
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public bool OnReleased(CatchAction action)
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{
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switch (action)
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{
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case CatchAction.MoveLeft:
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currentDirection++;
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return true;
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case CatchAction.MoveRight:
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currentDirection--;
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return true;
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case CatchAction.Dash:
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Dashing = false;
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return true;
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}
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return false;
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}
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/// <summary>
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/// The relative space to cover in 1 millisecond. based on 1 game pixel per millisecond as in osu-stable.
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/// </summary>
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public const double BASE_SPEED = 1.0 / 512;
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protected override void Update()
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{
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base.Update();
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if (currentDirection == 0) return;
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var direction = Math.Sign(currentDirection);
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double dashModifier = Dashing ? 1 : 0.5;
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double speed = BASE_SPEED * dashModifier * hyperDashModifier;
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Scale = new Vector2(Math.Abs(Scale.X) * direction, Scale.Y);
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X = (float)MathHelper.Clamp(X + direction * Clock.ElapsedFrameTime * speed, 0, 1);
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// Correct overshooting.
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if ((hyperDashDirection > 0 && hyperDashTargetPosition < X) ||
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(hyperDashDirection < 0 && hyperDashTargetPosition > X))
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{
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X = hyperDashTargetPosition;
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SetHyperDashState();
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}
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}
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/// <summary>
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/// Drop any fruit off the plate.
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/// </summary>
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public void Drop()
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{
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var fruit = caughtFruit.ToArray();
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foreach (var f in fruit)
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{
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if (ExplodingFruitTarget != null)
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{
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f.Anchor = Anchor.TopLeft;
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f.Position = caughtFruit.ToSpaceOfOtherDrawable(f.DrawPosition, ExplodingFruitTarget);
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caughtFruit.Remove(f);
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ExplodingFruitTarget.Add(f);
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}
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f.MoveToY(f.Y + 75, 750, Easing.InSine);
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f.FadeOut(750);
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// todo: this shouldn't exist once DrawableHitObject's ClearTransformsAfter overrides are repaired.
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f.LifetimeStart = Time.Current;
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f.Expire();
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}
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}
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/// <summary>
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/// Explode any fruit off the plate.
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/// </summary>
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public void Explode()
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{
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foreach (var f in caughtFruit.ToArray())
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Explode(f);
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}
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public void Explode(DrawableHitObject fruit)
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{
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var originalX = fruit.X * Scale.X;
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if (ExplodingFruitTarget != null)
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{
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fruit.Anchor = Anchor.TopLeft;
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fruit.Position = caughtFruit.ToSpaceOfOtherDrawable(fruit.DrawPosition, ExplodingFruitTarget);
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if (!caughtFruit.Remove(fruit))
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// we may have already been removed by a previous operation (due to the weird OnLoadComplete scheduling).
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// this avoids a crash on potentially attempting to Add a fruit to ExplodingFruitTarget twice.
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return;
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ExplodingFruitTarget.Add(fruit);
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}
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fruit.ClearTransforms();
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fruit.MoveToY(fruit.Y - 50, 250, Easing.OutSine).Then().MoveToY(fruit.Y + 50, 500, Easing.InSine);
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fruit.MoveToX(fruit.X + originalX * 6, 1000);
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fruit.FadeOut(750);
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// todo: this shouldn't exist once DrawableHitObject's ClearTransformsAfter overrides are repaired.
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fruit.LifetimeStart = Time.Current;
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fruit.Expire();
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}
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}
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}
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}
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