87 lines
2.8 KiB
C#
87 lines
2.8 KiB
C#
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using Cyber.Entities;
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using Cyber.Entities.SyncBases;
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using Cyber.Networking.Messages;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Networking;
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namespace Cyber.Networking.Clientside {
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/// <summary>
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/// A Short clientside class for handling sync packages.
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/// It simply keeps track of sync-packages and will not apply them if they are too old.
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/// </summary>
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public class SyncHandler {
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public static double LastTimestamp = NetworkHelper.GetTime();
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private SyncDB SyncDB;
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private int LatestSyncID = -1;
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private int SmallestSyncID = -1;
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private int LastSyncID = -1;
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private int SyncPacketsTotal = -1;
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/// <summary>
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/// Creates the SyncHandler with SyncDB.
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/// </summary>
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/// <param name="syncDB"></param>
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public SyncHandler(SyncDB syncDB) {
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SyncDB = syncDB;
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}
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/// <summary>
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/// Handle a given Network message. Must be checked to be <see cref="PktType.Sync"/> first.
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/// </summary>
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/// <param name="message"></param>
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public void HandleSyncPkt(NetworkMessage message) {
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SyncPkt SyncPacket = new SyncPkt(SyncDB);
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SyncPacket.Deserialize(message.reader);
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if (LatestSyncID < SyncPacket.SyncPacketID) {
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LatestSyncID = SyncPacket.SyncPacketID;
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SyncPacket.ApplySync(message.reader);
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int[] SyncBases = SyncPacket.ChecksummedSyncBases;
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int[] Checksums = SyncPacket.Checksums;
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if (SyncBases.Length > 0) {
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List<int> FailedSyncBases = new List<int>();
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for (int i = 0; i < SyncBases.Length; i++) {
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SyncBase SyncBase = SyncDB.Get(SyncBases[i]);
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if (SyncBase.GenerateChecksum() != Checksums[i]) {
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FailedSyncBases.Add(SyncBase.ID);
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}
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}
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if (FailedSyncBases.Count > 0) {
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Client.Send(PktType.FailedChecksums, new IntListPkt(FailedSyncBases.ToArray()));
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}
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}
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LastTimestamp = SyncPacket.Timestamp;
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LastSyncID = SyncPacket.SyncPacketID;
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if (SmallestSyncID == -1) {
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SmallestSyncID = SyncPacket.SyncPacketID;
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}
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SyncPacketsTotal++;
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}
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// Otherwise disregard the sync.
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}
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public float GetPing() {
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return (float) ((NetworkHelper.GetTime() - LastTimestamp) / 1000f);
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}
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public float GetPacketLoss() {
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return 1f - (SyncPacketsTotal * 1f / (LastSyncID - SmallestSyncID));
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}
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public int GetSyncPacketsReceived() {
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return SyncPacketsTotal;
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}
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}
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}
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