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osu-lazer/osu.Game/Screens/Edit/Compose/Components/CircularDistanceSnapGrid.cs

87 lines
3.2 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 System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Graphics.UserInterface;
using osu.Game.Rulesets.Objects;
using osuTK;
namespace osu.Game.Screens.Edit.Compose.Components
{
public abstract class CircularDistanceSnapGrid : DistanceSnapGrid
{
protected CircularDistanceSnapGrid(HitObject hitObject, HitObject nextHitObject, Vector2 centrePosition)
: base(hitObject, nextHitObject, centrePosition)
{
}
protected override void CreateContent(Vector2 centrePosition)
{
const float crosshair_thickness = 1;
const float crosshair_max_size = 10;
AddRangeInternal(new[]
{
new Box
{
Origin = Anchor.Centre,
Position = centrePosition,
Width = crosshair_thickness,
EdgeSmoothness = new Vector2(1),
Height = Math.Min(crosshair_max_size, DistanceSpacing * 2),
},
new Box
{
Origin = Anchor.Centre,
Position = centrePosition,
EdgeSmoothness = new Vector2(1),
Width = Math.Min(crosshair_max_size, DistanceSpacing * 2),
Height = crosshair_thickness,
}
});
float dx = Math.Max(centrePosition.X, DrawWidth - centrePosition.X);
float dy = Math.Max(centrePosition.Y, DrawHeight - centrePosition.Y);
float maxDistance = new Vector2(dx, dy).Length;
int requiredCircles = Math.Min(MaxIntervals, (int)(maxDistance / DistanceSpacing));
for (int i = 0; i < requiredCircles; i++)
{
float radius = (i + 1) * DistanceSpacing * 2;
AddInternal(new CircularProgress
{
Origin = Anchor.Centre,
Position = centrePosition,
Current = { Value = 1 },
Size = new Vector2(radius),
InnerRadius = 4 * 1f / radius,
Colour = GetColourForBeatIndex(i)
});
}
}
public override (Vector2 position, double time) GetSnappedPosition(Vector2 position)
{
if (MaxIntervals == 0)
return (CentrePosition, StartTime);
Vector2 direction = position - CentrePosition;
if (direction == Vector2.Zero)
direction = new Vector2(0.001f, 0.001f);
float distance = direction.Length;
float radius = DistanceSpacing;
int radialCount = MathHelper.Clamp((int)Math.Round(distance / radius), 1, MaxIntervals);
Vector2 normalisedDirection = direction * new Vector2(1f / distance);
Vector2 snappedPosition = CentrePosition + normalisedDirection * radialCount * radius;
return (snappedPosition, StartTime + SnapProvider.GetSnappedDurationFromDistance(StartTime, (snappedPosition - CentrePosition).Length));
}
}
}