diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneParticleExplosion.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneParticleExplosion.cs new file mode 100644 index 0000000000..82095cb809 --- /dev/null +++ b/osu.Game.Tests/Visual/Gameplay/TestSceneParticleExplosion.cs @@ -0,0 +1,39 @@ +// Copyright (c) ppy Pty Ltd . Licensed under the MIT Licence. +// See the LICENCE file in the repository root for full licence text. + +using NUnit.Framework; +using osu.Framework.Allocation; +using osu.Framework.Graphics; +using osu.Framework.Graphics.Textures; +using osu.Game.Graphics; +using osuTK; + +namespace osu.Game.Tests.Visual.Gameplay +{ + [TestFixture] + public class TestSceneParticleExplosion : OsuTestScene + { + private ParticleExplosion explosion; + + [BackgroundDependencyLoader] + private void load(TextureStore textures) + { + AddStep("create initial", () => + { + Child = explosion = new ParticleExplosion(textures.Get("Cursor/cursortrail"), 150, 1200) + { + Anchor = Anchor.Centre, + Origin = Anchor.Centre, + Size = new Vector2(400) + }; + }); + + AddWaitStep("wait for playback", 5); + + AddRepeatStep(@"restart animation", () => + { + explosion.Restart(); + }, 10); + } + } +} diff --git a/osu.Game/Graphics/ParticleExplosion.cs b/osu.Game/Graphics/ParticleExplosion.cs new file mode 100644 index 0000000000..e0d2b50c55 --- /dev/null +++ b/osu.Game/Graphics/ParticleExplosion.cs @@ -0,0 +1,144 @@ +// Copyright (c) ppy Pty Ltd . Licensed under the MIT Licence. +// See the LICENCE file in the repository root for full licence text. + +using System; +using System.Collections.Generic; +using osu.Framework.Graphics; +using osu.Framework.Graphics.OpenGL.Vertices; +using osu.Framework.Graphics.Primitives; +using osu.Framework.Graphics.Sprites; +using osu.Framework.Graphics.Textures; +using osu.Framework.Utils; +using osuTK; + +namespace osu.Game.Graphics +{ + /// + /// An explosion of textured particles based on how osu-stable randomises the explosion pattern. + /// + public class ParticleExplosion : Sprite + { + private readonly int particleCount; + private readonly double duration; + private double startTime; + + private readonly List parts = new List(); + + public ParticleExplosion(Texture texture, int particleCount, double duration) + { + Texture = texture; + this.particleCount = particleCount; + this.duration = duration; + Blending = BlendingParameters.Additive; + } + + protected override void LoadComplete() + { + base.LoadComplete(); + Restart(); + } + + /// + /// Restart the animation from the current point in time. + /// Supports transform time offset chaining. + /// + public void Restart() + { + startTime = TransformStartTime; + this.FadeOutFromOne(duration); + + parts.Clear(); + for (int i = 0; i < particleCount; i++) + parts.Add(new ParticlePart(duration)); + } + + protected override void Update() + { + base.Update(); + Invalidate(Invalidation.DrawNode); + } + + protected override DrawNode CreateDrawNode() => new ParticleExplosionDrawNode(this); + + private class ParticleExplosionDrawNode : SpriteDrawNode + { + private readonly List parts = new List(); + + private ParticleExplosion source => (ParticleExplosion)Source; + + private double startTime; + private double currentTime; + private Vector2 sourceSize; + + public ParticleExplosionDrawNode(Sprite source) + : base(source) + { + } + + public override void ApplyState() + { + base.ApplyState(); + + parts.Clear(); + parts.AddRange(source.parts); + + sourceSize = source.Size; + startTime = source.startTime; + currentTime = source.Time.Current; + } + + protected override void Blit(Action vertexAction) + { + var time = currentTime - startTime; + + foreach (var p in parts) + { + Vector2 pos = p.PositionAtTime(time); + float alpha = p.AlphaAtTime(time); + + var rect = new RectangleF( + pos.X * sourceSize.X - Texture.DisplayWidth / 2, + pos.Y * sourceSize.Y - Texture.DisplayHeight / 2, + Texture.DisplayWidth, + Texture.DisplayHeight); + + // convert to screen space. + var quad = new Quad( + Vector2Extensions.Transform(rect.TopLeft, DrawInfo.Matrix), + Vector2Extensions.Transform(rect.TopRight, DrawInfo.Matrix), + Vector2Extensions.Transform(rect.BottomLeft, DrawInfo.Matrix), + Vector2Extensions.Transform(rect.BottomRight, DrawInfo.Matrix) + ); + + DrawQuad(Texture, quad, DrawColourInfo.Colour.MultiplyAlpha(alpha), null, vertexAction, + new Vector2(InflationAmount.X / DrawRectangle.Width, InflationAmount.Y / DrawRectangle.Height), + null, TextureCoords); + } + } + } + + private readonly struct ParticlePart + { + private readonly double duration; + private readonly float direction; + private readonly float distance; + + public ParticlePart(double availableDuration) + { + distance = RNG.NextSingle(0.5f); + duration = RNG.NextDouble(availableDuration / 3, availableDuration); + direction = RNG.NextSingle(0, MathF.PI * 2); + } + + public float AlphaAtTime(double time) => 1 - progressAtTime(time); + + public Vector2 PositionAtTime(double time) + { + var travelledDistance = distance * progressAtTime(time); + return new Vector2(0.5f) + travelledDistance * new Vector2(MathF.Sin(direction), MathF.Cos(direction)); + } + + private float progressAtTime(double time) => (float)Math.Clamp(time / duration, 0, 1); + } + } +} diff --git a/osu.Game/Skinning/LegacyJudgementPieceNew.cs b/osu.Game/Skinning/LegacyJudgementPieceNew.cs index b5e1de337a..2a53820872 100644 --- a/osu.Game/Skinning/LegacyJudgementPieceNew.cs +++ b/osu.Game/Skinning/LegacyJudgementPieceNew.cs @@ -5,7 +5,9 @@ using System; using osu.Framework.Graphics; using osu.Framework.Graphics.Animations; using osu.Framework.Graphics.Containers; +using osu.Framework.Graphics.Textures; using osu.Framework.Utils; +using osu.Game.Graphics; using osu.Game.Rulesets.Judgements; using osu.Game.Rulesets.Scoring; using osuTK; @@ -20,7 +22,9 @@ namespace osu.Game.Skinning private readonly Drawable mainPiece; - public LegacyJudgementPieceNew(HitResult result, Func createMainDrawable, Func createParticleDrawable) + private readonly ParticleExplosion particles; + + public LegacyJudgementPieceNew(HitResult result, Func createMainDrawable, Texture particleTexture) { this.result = result; @@ -36,6 +40,17 @@ namespace osu.Game.Skinning }) }; + if (particleTexture != null) + { + AddInternal(particles = new ParticleExplosion(particleTexture, 150, 1600) + { + Size = new Vector2(140), + Depth = float.MaxValue, + Anchor = Anchor.Centre, + Origin = Anchor.Centre, + }); + } + if (result != HitResult.Miss) { //new judgement shows old as a temporary effect @@ -54,6 +69,13 @@ namespace osu.Game.Skinning animation?.GotoFrame(0); + if (particles != null) + { + // start the particles already some way into their animation to break cluster away from centre. + using (particles.BeginDelayedSequence(-100, true)) + particles.Restart(); + } + const double fade_in_length = 120; const double fade_out_delay = 500; const double fade_out_length = 600; diff --git a/osu.Game/Skinning/LegacySkin.cs b/osu.Game/Skinning/LegacySkin.cs index 6faee8c2e7..63a22eba62 100644 --- a/osu.Game/Skinning/LegacySkin.cs +++ b/osu.Game/Skinning/LegacySkin.cs @@ -377,7 +377,7 @@ namespace osu.Game.Skinning if (createDrawable() != null) { if (Configuration.LegacyVersion > 1) - return new LegacyJudgementPieceNew(resultComponent.Component, createDrawable, () => getParticleDrawable(resultComponent.Component)); + return new LegacyJudgementPieceNew(resultComponent.Component, createDrawable, getParticleTexture(resultComponent.Component)); else return new LegacyJudgementPieceOld(resultComponent.Component, createDrawable); } @@ -388,18 +388,18 @@ namespace osu.Game.Skinning return this.GetAnimation(component.LookupName, false, false); } - private Drawable getParticleDrawable(HitResult result) + private Texture getParticleTexture(HitResult result) { switch (result) { case HitResult.Meh: - return this.GetAnimation("particle50", false, false); + return GetTexture("particle50"); case HitResult.Ok: - return this.GetAnimation("particle100", false, false); + return GetTexture("particle100"); case HitResult.Great: - return this.GetAnimation("particle300", false, false); + return GetTexture("particle300"); } return null;