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osu-lazer/osu.Game.Tournament/Screens/Drawings/Components/VisualiserContainer.cs
2020-01-09 13:43:44 +09:00

125 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.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Framework.Utils;
namespace osu.Game.Tournament.Screens.Drawings.Components
{
public class VisualiserContainer : Container
{
/// <summary>
/// Number of lines in the visualiser.
/// </summary>
public int Lines
{
get => allLines.Count;
set
{
while (value > allLines.Count)
addLine();
while (value < allLines.Count)
removeLine();
}
}
private readonly List<VisualiserLine> allLines = new List<VisualiserLine>();
private float offset;
private void addLine()
{
VisualiserLine newLine = new VisualiserLine
{
RelativeSizeAxes = Axes.Both,
Offset = offset,
CycleTime = RNG.Next(10000, 12000),
};
allLines.Add(newLine);
Add(newLine);
offset += RNG.Next(100, 5000);
}
private void removeLine()
{
if (allLines.Count == 0)
return;
Remove(allLines.First());
allLines.Remove(allLines.First());
}
private class VisualiserLine : Container
{
/// <summary>
/// Time offset.
/// </summary>
public float Offset;
public double CycleTime;
private float leftPos => -(float)((Time.Current + Offset) / CycleTime) + expiredCount;
private Texture texture;
private int expiredCount;
[BackgroundDependencyLoader]
private void load(TextureStore textures)
{
texture = textures.Get("Drawings/visualiser-line");
}
protected override void UpdateAfterChildren()
{
base.UpdateAfterChildren();
while (Children.Count < 3)
addLine();
float pos = leftPos;
foreach (var c in Children)
{
if (c.Position.X < -1)
{
c.ClearTransforms();
c.Expire();
expiredCount++;
}
else
c.MoveToX(pos, 100);
pos += 1;
}
}
private void addLine()
{
Add(new Sprite
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
RelativePositionAxes = Axes.Both,
RelativeSizeAxes = Axes.Both,
Texture = texture,
X = leftPos + 1
});
}
}
}
}