125 lines
3.5 KiB
C#
125 lines
3.5 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="Counter"
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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 System;
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using System.Numerics;
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namespace StgSharp
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{
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public class Counter<T> where T : unmanaged, INumber<T>
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{
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internal dynamic _value;
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internal readonly T _defaultDecrement;
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internal readonly T _defaultIncrement;
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internal readonly T _defaultValue;
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public Counter(
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T defaultValue,
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T defaultIncrement,
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T defaultDecrement
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)
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{
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_value = defaultValue;
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_defaultValue = defaultValue;
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_defaultIncrement = defaultIncrement;
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_defaultDecrement = defaultDecrement;
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}
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public T DecrementSpan => _defaultDecrement;
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public T IncrementSpan => _defaultIncrement;
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public T CurrentSpan => _value - _defaultValue;
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public T Value
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{
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get => _value;
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set => _value = value;
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}
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public void Add(
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T value
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)
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{
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_value += value;
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}
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public void QuickAdd()
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{
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_value += _defaultIncrement;
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}
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public void QuickSub()
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{
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_value -= _defaultDecrement;
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}
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public void Reset()
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{
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_value = _defaultValue;
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}
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public void Sub(
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T value
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)
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{
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_value -= value;
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}
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public override string ToString() => Value.ToString();
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public static Counter<T> operator --(
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Counter<T> counter
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)
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{
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counter?.QuickSub();
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return counter;
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}
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public static Counter<T> operator ++(
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Counter<T> counter
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)
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{
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counter?.QuickAdd();
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return counter;
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}
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public static implicit operator T(
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Counter<T> counter
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)
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{
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return counter switch
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{
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null => T.Zero,
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_ => counter.Value
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};
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}
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}
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} |