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81 lines
2.5 KiB
C#
81 lines
2.5 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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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 osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Game.Graphics.Sprites;
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namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
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{
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public class SpinnerSpmCounter : Container
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{
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private readonly OsuSpriteText spmText;
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public SpinnerSpmCounter()
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{
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Children = new Drawable[]
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{
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spmText = new OsuSpriteText
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{
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Anchor = Anchor.TopCentre,
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Origin = Anchor.TopCentre,
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Text = @"0",
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Font = @"Venera",
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TextSize = 24
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},
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new OsuSpriteText
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{
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Anchor = Anchor.TopCentre,
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Origin = Anchor.TopCentre,
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Text = @"SPINS PER MINUTE",
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Font = @"Venera",
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TextSize = 12,
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Y = 30
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}
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};
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}
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private double spm;
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public double SpinsPerMinute
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{
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get { return spm; }
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private set
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{
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if (value == spm) return;
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spm = value;
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spmText.Text = Math.Truncate(value).ToString(@"#0");
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}
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}
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private struct RotationRecord
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{
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public float Rotation;
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public double Time;
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}
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private readonly Queue<RotationRecord> records = new Queue<RotationRecord>();
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private const double spm_count_duration = 595; // not using hundreds to avoid frame rounding issues
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public void SetRotation(float currentRotation)
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{
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// If we've gone back in time, it's fine to work with a fresh set of records for now
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if (records.Count > 0 && Time.Current < records.Last().Time)
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records.Clear();
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if (records.Count > 0)
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{
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var record = records.Peek();
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while (records.Count > 0 && Time.Current - records.Peek().Time > spm_count_duration)
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record = records.Dequeue();
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SpinsPerMinute = (currentRotation - record.Rotation) / (Time.Current - record.Time) * 1000 * 60 / 360;
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}
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records.Enqueue(new RotationRecord { Rotation = currentRotation, Time = Time.Current });
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}
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}
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}
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