mirror of
https://github.com/ppy/osu.git
synced 2024-12-26 04:32:55 +08:00
44 lines
1.8 KiB
C#
44 lines
1.8 KiB
C#
|
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
|
||
|
|
// See the LICENCE file in the repository root for full licence text.
|
||
|
|
|
||
|
|
using osu.Framework.Extensions.EnumExtensions;
|
||
|
|
using osu.Framework.Graphics;
|
||
|
|
using osuTK;
|
||
|
|
|
||
|
|
namespace osu.Game.Storyboards
|
||
|
|
{
|
||
|
|
public static class StoryboardExtensions
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Given an origin and a set of properties, adjust the origin to display the sprite/animation correctly.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="origin">The current origin.</param>
|
||
|
|
/// <param name="vectorScale">The vector scale.</param>
|
||
|
|
/// <param name="flipH">Whether the element is flipped horizontally.</param>
|
||
|
|
/// <param name="flipV">Whether the element is flipped vertically.</param>
|
||
|
|
/// <returns>The adjusted origin.</returns>
|
||
|
|
public static Anchor AdjustOrigin(Anchor origin, Vector2 vectorScale, bool flipH, bool flipV)
|
||
|
|
{
|
||
|
|
// Either flip horizontally or negative X scale, but not both.
|
||
|
|
if (flipH ^ (vectorScale.X < 0))
|
||
|
|
{
|
||
|
|
if (origin.HasFlagFast(Anchor.x0))
|
||
|
|
origin = Anchor.x2 | (origin & (Anchor.y0 | Anchor.y1 | Anchor.y2));
|
||
|
|
else if (origin.HasFlagFast(Anchor.x2))
|
||
|
|
origin = Anchor.x0 | (origin & (Anchor.y0 | Anchor.y1 | Anchor.y2));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Either flip vertically or negative Y scale, but not both.
|
||
|
|
if (flipV ^ (vectorScale.Y < 0))
|
||
|
|
{
|
||
|
|
if (origin.HasFlagFast(Anchor.y0))
|
||
|
|
origin = Anchor.y2 | (origin & (Anchor.x0 | Anchor.x1 | Anchor.x2));
|
||
|
|
else if (origin.HasFlagFast(Anchor.y2))
|
||
|
|
origin = Anchor.y0 | (origin & (Anchor.x0 | Anchor.x1 | Anchor.x2));
|
||
|
|
}
|
||
|
|
|
||
|
|
return origin;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|