hondacrx
110 lines
3.2 KiB
C#
110 lines
3.2 KiB
C#
/*
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* Copyright (C) 2012-2018 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using Framework.Constants;
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using Framework.IO;
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using System.Collections;
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using System;
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namespace Game.Entities
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{
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public class UpdateMask
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{
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public UpdateMask(uint valuesCount = 0)
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{
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_fieldCount = valuesCount;
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_blockCount = (valuesCount + 32 - 1) / 32;
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_mask = new BitArray((int)valuesCount, false);
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}
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public void SetCount(int valuesCount)
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{
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_fieldCount = (uint)valuesCount;
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_blockCount = (uint)(valuesCount + 32 - 1) / 32;
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_mask = new BitArray((int)valuesCount, false);
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}
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public uint GetCount() { return _fieldCount; }
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public virtual void AppendToPacket(ByteBuffer data)
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{
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data.WriteUInt8(_blockCount);
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var maskArray = new byte[_blockCount << 2];
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_mask.CopyTo(maskArray, 0);
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data.WriteBytes(maskArray);
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}
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public bool GetBit(int index)
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{
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return _mask.Get(index);
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}
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public void SetBit(int index)
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{
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_mask.Set(index, true);
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}
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void UnsetBit(int index)
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{
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_mask.Set(index, false);
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}
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public void Clear()
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{
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_mask.SetAll(false);
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}
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protected uint _fieldCount;
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protected uint _blockCount;
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protected BitArray _mask;
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}
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public class DynamicUpdateMask : UpdateMask
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{
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public DynamicUpdateMask(uint valuesCount) : base(valuesCount) { }
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public void EncodeDynamicFieldChangeType(DynamicFieldChangeType changeType, UpdateType updateType)
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{
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DynamicFieldChangeType = (uint)(_blockCount | ((uint)(changeType & Entities.DynamicFieldChangeType.ValueAndSizeChanged) * ((3 - (int)updateType /*this part evaluates to 0 if update type is not VALUES*/) / 3)));
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}
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public override void AppendToPacket(ByteBuffer data)
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{
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data.WriteUInt16(DynamicFieldChangeType);
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if (DynamicFieldChangeType.HasAnyFlag((uint)Entities.DynamicFieldChangeType.ValueAndSizeChanged))
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data.WriteUInt32(_fieldCount);
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var maskArray = new byte[_blockCount << 2];
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_mask.CopyTo(maskArray, 0);
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data.WriteBytes(maskArray);
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}
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public uint DynamicFieldChangeType;
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}
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public enum DynamicFieldChangeType
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{
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Unchanged = 0,
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ValueChanged = 0x7FFF,
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ValueAndSizeChanged = 0x8000
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}
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}
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