mirror of https://github.com/ppy/osu
72 lines
3.1 KiB
C#
72 lines
3.1 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 osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Game.Screens.Play.HUD;
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using osu.Game.Skinning;
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using osuTK;
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namespace osu.Game.Extensions
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{
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public static class DrawableExtensions
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{
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/// <summary>
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/// Shakes this drawable.
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/// </summary>
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/// <param name="target">The target to shake.</param>
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/// <param name="shakeDuration">The length of a single shake.</param>
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/// <param name="shakeMagnitude">Pixels of displacement per shake.</param>
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/// <param name="maximumLength">The maximum length the shake should last.</param>
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public static void Shake(this Drawable target, double shakeDuration = 80, float shakeMagnitude = 8, double? maximumLength = null)
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{
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// if we don't have enough time, don't bother shaking.
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if (maximumLength < shakeDuration * 2)
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return;
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var sequence = target.MoveToX(shakeMagnitude, shakeDuration / 2, Easing.OutSine).Then()
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.MoveToX(-shakeMagnitude, shakeDuration, Easing.InOutSine).Then();
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// if we don't have enough time for the second shake, skip it.
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if (!maximumLength.HasValue || maximumLength >= shakeDuration * 4)
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{
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sequence = sequence
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.MoveToX(shakeMagnitude, shakeDuration, Easing.InOutSine).Then()
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.MoveToX(-shakeMagnitude, shakeDuration, Easing.InOutSine).Then();
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}
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sequence.MoveToX(0, shakeDuration / 2, Easing.InSine);
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}
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/// <summary>
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/// Accepts a delta vector in screen-space coordinates and converts it to one which can be applied to this drawable's position.
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/// </summary>
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/// <param name="drawable">The drawable.</param>
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/// <param name="delta">A delta in screen-space coordinates.</param>
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/// <returns>The delta vector in Parent's coordinates.</returns>
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public static Vector2 ScreenSpaceDeltaToParentSpace(this Drawable drawable, Vector2 delta) =>
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drawable.Parent.ToLocalSpace(drawable.Parent.ToScreenSpace(Vector2.Zero) + delta);
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public static SkinnableInfo CreateSkinnableInfo(this Drawable component) => new SkinnableInfo(component);
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public static void ApplySkinnableInfo(this Drawable component, SkinnableInfo info)
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{
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// todo: can probably make this better via deserialisation directly using a common interface.
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component.Position = info.Position;
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component.Rotation = info.Rotation;
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component.Scale = info.Scale;
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component.Anchor = info.Anchor;
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component.Origin = info.Origin;
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if (component is ISkinnableDrawable skinnable)
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skinnable.UsesFixedAnchor = info.UsesFixedAnchor;
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if (component is Container container)
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{
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foreach (var child in info.Children)
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container.Add(child.CreateInstance());
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}
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}
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}
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}
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