94 lines
3.2 KiB
C#
94 lines
3.2 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="TimeSequence"
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// Project: StgSharp
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// AuthorGroup: Nitload
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// Copyright (c) Nitload. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using StgSharp.Mathematics;
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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.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.Common.Timing
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{
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public abstract class TimeSequence
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{
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public ulong BeginningTick { get; protected set; }
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public ulong EndingTick { get; protected set; }
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public ulong FrameLength { get; protected set; }
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public static TimeSequence CreateLinear(ulong timeout, ulong length)
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{
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return new LinearTimeSequence(timeout, timeout + length, length);
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}
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public abstract bool IsNextFrameReady(ulong currentTick);
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}
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internal sealed class LogTimeSequence : TimeSequence
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{
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private float _rate ;
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public LogTimeSequence(ulong beginningTick, ulong endingTick, ulong tickPerDecade)
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{
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BeginningTick = beginningTick;
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EndingTick = endingTick;
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_rate = Scalar.Pow(10, 1 / tickPerDecade);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public override bool IsNextFrameReady(ulong currentTick)
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{
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return (ulong)Math.Log(currentTick - BeginningTick + 1) >= FrameLength;
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}
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}
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internal sealed class LinearTimeSequence : TimeSequence
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{
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public LinearTimeSequence(ulong beginningTick, ulong endingTick, ulong tickPerFrame)
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{
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BeginningTick = beginningTick;
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EndingTick = endingTick;
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FrameLength = tickPerFrame;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public override bool IsNextFrameReady(ulong currentTick)
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{
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return currentTick - BeginningTick >= FrameLength;
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}
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}
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}
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