mirror of https://github.com/ppy/osu
122 lines
4.1 KiB
C#
122 lines
4.1 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using osu.Framework.Graphics;
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using osu.Framework.MathUtils;
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using osu.Game.Rulesets.Objects.Drawables;
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using osuTK;
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using osu.Game.Graphics;
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using osu.Game.Rulesets.Scoring;
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using osu.Game.Skinning;
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namespace osu.Game.Rulesets.Osu.Objects.Drawables
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{
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public class DrawableRepeatPoint : DrawableOsuHitObject, ITrackSnaking
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{
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private readonly RepeatPoint repeatPoint;
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private readonly DrawableSlider drawableSlider;
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private double animDuration;
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public DrawableRepeatPoint(RepeatPoint repeatPoint, DrawableSlider drawableSlider)
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: base(repeatPoint)
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{
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this.repeatPoint = repeatPoint;
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this.drawableSlider = drawableSlider;
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Size = new Vector2(45 * repeatPoint.Scale);
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Blending = BlendingMode.Additive;
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Origin = Anchor.Centre;
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InternalChildren = new Drawable[]
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{
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new SkinnableDrawable("Play/osu/reversearrow", _ => new SpriteIcon
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{
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RelativeSizeAxes = Axes.Both,
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Icon = FontAwesome.fa_chevron_right
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}, restrictSize: false)
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};
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}
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protected override void CheckForResult(bool userTriggered, double timeOffset)
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{
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if (repeatPoint.StartTime <= Time.Current)
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ApplyResult(r => r.Type = drawableSlider.Tracking ? HitResult.Great : HitResult.Miss);
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}
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protected override void UpdatePreemptState()
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{
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animDuration = Math.Min(150, repeatPoint.SpanDuration / 2);
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this.Animate(
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d => d.FadeIn(animDuration),
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d => d.ScaleTo(0.5f).ScaleTo(1f, animDuration * 4, Easing.OutElasticHalf)
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);
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}
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protected override void UpdateCurrentState(ArmedState state)
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{
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switch (state)
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{
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case ArmedState.Idle:
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this.Delay(HitObject.TimePreempt).FadeOut();
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break;
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case ArmedState.Miss:
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this.FadeOut(animDuration);
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break;
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case ArmedState.Hit:
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this.FadeOut(animDuration, Easing.OutQuint)
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.ScaleTo(Scale * 1.5f, animDuration, Easing.Out);
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break;
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}
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}
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private bool hasRotation;
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public void UpdateSnakingPosition(Vector2 start, Vector2 end)
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{
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bool isRepeatAtEnd = repeatPoint.RepeatIndex % 2 == 0;
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List<Vector2> curve = drawableSlider.Body.CurrentCurve;
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Position = isRepeatAtEnd ? end : start;
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if (curve.Count < 2)
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return;
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int searchStart = isRepeatAtEnd ? curve.Count - 1 : 0;
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int direction = isRepeatAtEnd ? -1 : 1;
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Vector2 aimRotationVector = Vector2.Zero;
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// find the next vector2 in the curve which is not equal to our current position to infer a rotation.
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for (int i = searchStart; i >= 0 && i < curve.Count; i += direction)
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{
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if (Precision.AlmostEquals(curve[i], Position))
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continue;
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aimRotationVector = curve[i];
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break;
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}
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float aimRotation = MathHelper.RadiansToDegrees((float)Math.Atan2(aimRotationVector.Y - Position.Y, aimRotationVector.X - Position.X));
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while (Math.Abs(aimRotation - Rotation) > 180)
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aimRotation += aimRotation < Rotation ? 360 : -360;
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if (!hasRotation)
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{
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Rotation = aimRotation;
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hasRotation = true;
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}
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else
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{
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// If we're already snaking, interpolate to smooth out sharp curves (linear sliders, mainly).
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Rotation = Interpolation.ValueAt(MathHelper.Clamp(Clock.ElapsedFrameTime, 0, 100), Rotation, aimRotation, 0, 50, Easing.OutQuint);
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}
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}
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}
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}
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