47 lines
1.4 KiB
C#
47 lines
1.4 KiB
C#
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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.Text;
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namespace TJAPlayer3.Animations
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{
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/// <summary>
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/// イーズイン・アウトを行うクラス。
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/// </summary>
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class EaseInOut : Animator
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{
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/// <summary>
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/// イーズイン・アウトを初期化します。
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/// </summary>
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/// <param name="startPoint">始点。</param>
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/// <param name="endPoint">終点。</param>
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/// <param name="timeMs">イージングにかける時間。</param>
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public EaseInOut(int startPoint, int endPoint, int timeMs) : base(0, timeMs, 1, false)
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{
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StartPoint = startPoint;
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EndPoint = endPoint;
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Sa = EndPoint - StartPoint;
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TimeMs = timeMs;
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}
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public override object GetAnimation()
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{
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var persent = Counter.n現在の値 / (double)TimeMs * 2.0;
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if (persent < 1)
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{
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return ((double)Sa / 2.0 * persent * persent * persent) + StartPoint;
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}
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else
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{
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persent -= 2;
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return ((double)Sa / 2.0 * ((persent * persent * persent) + 2)) + StartPoint;
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}
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}
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private readonly int StartPoint;
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private readonly int EndPoint;
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private readonly int Sa;
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private readonly int TimeMs;
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}
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}
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