mirror of
https://github.com/ppy/osu.git
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270 lines
7.3 KiB
C#
270 lines
7.3 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 System.Linq;
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using System.Threading;
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using osu.Framework;
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using osu.Framework.Extensions.Color4Extensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osuTK;
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using osuTK.Graphics;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Allocation;
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using osu.Framework.Threading;
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namespace osu.Game.Screens.Play
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{
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public partial class SquareGraph : Container
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{
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private BufferedContainer<Column> columns;
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public int ColumnCount => columns?.Children.Count ?? 0;
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private int progress;
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public int Progress
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{
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get => progress;
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set
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{
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if (value == progress) return;
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progress = value;
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redrawProgress();
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}
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}
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private float[] calculatedValues = Array.Empty<float>(); // values but adjusted to fit the amount of columns
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private int[] values;
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public int[] Values
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{
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get => values;
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set
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{
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if (value == values) return;
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values = value;
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graphNeedsUpdate = true;
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}
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}
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private Color4 fillColour;
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public Color4 FillColour
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{
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get => fillColour;
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set
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{
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if (value == fillColour) return;
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fillColour = value;
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redrawFilled();
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}
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}
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private ScheduledDelegate scheduledCreate;
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private bool graphNeedsUpdate;
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private Vector2 previousDrawSize;
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protected override void Update()
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{
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base.Update();
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if (graphNeedsUpdate || (values != null && DrawSize != previousDrawSize))
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{
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columns?.FadeOut(500, Easing.OutQuint).Expire();
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scheduledCreate?.Cancel();
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scheduledCreate = Scheduler.AddDelayed(RecreateGraph, 500);
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previousDrawSize = DrawSize;
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graphNeedsUpdate = false;
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}
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}
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private CancellationTokenSource cts;
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/// <summary>
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/// Recreates the entire graph.
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/// </summary>
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protected virtual void RecreateGraph()
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{
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var newColumns = new BufferedContainer<Column>(cachedFrameBuffer: true)
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{
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RedrawOnScale = false,
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RelativeSizeAxes = Axes.Both,
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};
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for (float x = 0; x < DrawWidth; x += Column.WIDTH)
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{
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newColumns.Add(new Column(DrawHeight)
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{
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LitColour = fillColour,
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Anchor = Anchor.BottomLeft,
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Origin = Anchor.BottomLeft,
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Position = new Vector2(x, 0),
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State = ColumnState.Dimmed,
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});
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}
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cts?.Cancel();
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LoadComponentAsync(newColumns, c =>
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{
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Child = columns = c;
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columns.FadeInFromZero(500, Easing.OutQuint);
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recalculateValues();
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redrawFilled();
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redrawProgress();
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}, (cts = new CancellationTokenSource()).Token);
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}
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/// <summary>
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/// Redraws all the columns to match their lit/dimmed state.
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/// </summary>
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private void redrawProgress()
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{
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for (int i = 0; i < ColumnCount; i++)
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columns[i].State = i <= progress ? ColumnState.Lit : ColumnState.Dimmed;
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columns?.ForceRedraw();
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}
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/// <summary>
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/// Redraws the filled amount of all the columns.
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/// </summary>
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private void redrawFilled()
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{
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for (int i = 0; i < ColumnCount; i++)
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columns[i].Filled = calculatedValues.ElementAtOrDefault(i);
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columns?.ForceRedraw();
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}
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/// <summary>
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/// Takes <see cref="Values"/> and adjusts it to fit the amount of columns.
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/// </summary>
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private void recalculateValues()
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{
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var newValues = new List<float>();
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if (values == null)
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{
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for (float i = 0; i < ColumnCount; i++)
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newValues.Add(0);
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return;
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}
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int max = values.Max();
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float step = values.Length / (float)ColumnCount;
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for (float i = 0; i < values.Length; i += step)
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{
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newValues.Add((float)values[(int)i] / max);
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}
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calculatedValues = newValues.ToArray();
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}
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public partial class Column : Container, IStateful<ColumnState>
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{
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protected readonly Color4 EmptyColour = Color4.White.Opacity(20);
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public Color4 LitColour = Color4.LightBlue;
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protected readonly Color4 DimmedColour = Color4.White.Opacity(140);
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private float cubeCount => DrawHeight / WIDTH;
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private const float cube_size = 4;
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private const float padding = 2;
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public const float WIDTH = cube_size + padding;
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public event Action<ColumnState> StateChanged;
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private readonly List<Box> drawableRows = new List<Box>();
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private float filled;
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public float Filled
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{
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get => filled;
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set
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{
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if (value == filled) return;
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filled = value;
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fillActive();
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}
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}
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private ColumnState state;
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public ColumnState State
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{
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get => state;
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set
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{
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if (value == state) return;
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state = value;
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if (IsLoaded)
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fillActive();
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StateChanged?.Invoke(State);
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}
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}
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public Column(float height)
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{
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Width = WIDTH;
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Height = height;
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}
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[BackgroundDependencyLoader]
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private void load()
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{
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drawableRows.AddRange(Enumerable.Range(0, (int)cubeCount).Select(r => new Box
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{
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Size = new Vector2(cube_size),
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Position = new Vector2(0, r * WIDTH + padding),
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}));
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Children = drawableRows;
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// Reverse drawableRows so when iterating through them they start at the bottom
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drawableRows.Reverse();
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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fillActive();
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}
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private void fillActive()
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{
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Color4 colour = State == ColumnState.Lit ? LitColour : DimmedColour;
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int countFilled = (int)Math.Clamp(filled * drawableRows.Count, 0, drawableRows.Count);
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for (int i = 0; i < drawableRows.Count; i++)
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drawableRows[i].Colour = i < countFilled ? colour : EmptyColour;
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}
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}
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public enum ColumnState
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{
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Lit,
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Dimmed
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}
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}
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}
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