50 lines
1.8 KiB
C#
50 lines
1.8 KiB
C#
#region CmdMessenger - MIT - (c) 2013 Thijs Elenbaas.
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/*
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CmdMessenger - library that provides command based messaging
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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Copyright 2013 - Thijs Elenbaas
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*/
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#endregion
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namespace CommandMessenger.Queue
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{
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/// <summary> Collapse command strategy.
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/// The purpose of the strategy is to avoid duplicates of a certain command on the queue
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/// to avoid lagging </summary>
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public class CollapseCommandStrategy : CommandStrategy
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{
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/// <summary> Collapse strategy. </summary>
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/// <param name="command"> The command that will be collapsed on the queue. </param>
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public CollapseCommandStrategy(Command command) : base(command)
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{}
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/// <summary> Add command (strategy) to command queue. </summary>
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public override void Enqueue()
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{
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// find if there already is a command with the same CmdId
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var index = CommandQueue.FindIndex(strategy => strategy.Command.CmdId == Command.CmdId);
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if (index < 0)
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{
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// if not, add to the back of the queue
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CommandQueue.Enqueue(this);
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}
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else
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{
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// if on the queue, replace with new command
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CommandQueue[index] = this;
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}
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}
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}
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}
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