mirror of
https://github.com/ppy/osu
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126 lines
3.9 KiB
C#
126 lines
3.9 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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#nullable disable
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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.Graphics.Containers;
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using osu.Framework.Graphics.Lines;
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using osu.Game.Rulesets.Osu.Skinning.Default;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Rulesets.Osu.Skinning
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{
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public abstract partial class SliderBody : CompositeDrawable
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{
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private DrawableSliderPath path;
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protected Path Path => path;
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public virtual float PathRadius
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{
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get => path.PathRadius;
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set => path.PathRadius = value;
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}
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/// <summary>
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/// Offset in absolute coordinates from the start of the curve.
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/// </summary>
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public virtual Vector2 PathOffset => path.PositionInBoundingBox(path.Vertices[0]);
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/// <summary>
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/// Used to colour the path.
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/// </summary>
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public Color4 AccentColour
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{
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get => path.AccentColour;
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set
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{
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if (path.AccentColour == value)
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return;
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path.AccentColour = value;
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}
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}
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/// <summary>
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/// Used to colour the path border.
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/// </summary>
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public new Color4 BorderColour
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{
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get => path.BorderColour;
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set
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{
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if (path.BorderColour == value)
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return;
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path.BorderColour = value;
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}
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}
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/// <summary>
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/// Used to size the path border.
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/// </summary>
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public float BorderSize
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{
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get => path.BorderSize;
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set
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{
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if (path.BorderSize == value)
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return;
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path.BorderSize = value;
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}
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}
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protected SliderBody()
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{
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RecyclePath();
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}
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/// <summary>
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/// Initialises a new <see cref="DrawableSliderPath"/>, releasing all resources retained by the old one.
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/// </summary>
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public virtual void RecyclePath()
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{
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InternalChild = path = CreateSliderPath().With(p =>
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{
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p.Position = path?.Position ?? Vector2.Zero;
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p.PathRadius = path?.PathRadius ?? 10;
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p.AccentColour = path?.AccentColour ?? Color4.White;
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p.BorderColour = path?.BorderColour ?? Color4.White;
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p.BorderSize = path?.BorderSize ?? 1;
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p.Vertices = path?.Vertices ?? Array.Empty<Vector2>();
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});
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}
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => path.ReceivePositionalInputAt(screenSpacePos);
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/// <summary>
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/// Sets the vertices of the path which should be drawn by this <see cref="SliderBody"/>.
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/// </summary>
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/// <param name="vertices">The vertices</param>
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protected void SetVertices(IReadOnlyList<Vector2> vertices) => path.Vertices = vertices;
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protected virtual DrawableSliderPath CreateSliderPath() => new DefaultDrawableSliderPath();
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private partial class DefaultDrawableSliderPath : DrawableSliderPath
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{
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private const float opacity_at_centre = 0.3f;
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private const float opacity_at_edge = 0.8f;
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protected override Color4 ColourAt(float position)
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{
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if (CalculatedBorderPortion != 0f && position <= CalculatedBorderPortion)
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return BorderColour;
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position -= CalculatedBorderPortion;
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return new Color4(AccentColour.R, AccentColour.G, AccentColour.B, (opacity_at_edge - (opacity_at_edge - opacity_at_centre) * position / GRADIENT_PORTION) * AccentColour.A);
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}
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}
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}
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}
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