forked from cgvr/DeltaVR
315 lines
12 KiB
C#
315 lines
12 KiB
C#
using FishNet.Connection; //remove on 2023/01/01 move to correct folder.
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using FishNet.Object;
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using FishNet.Observing;
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using FishNet.Utility.Constant;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using UnityEngine;
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using UnityEngine.Serialization;
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[assembly: InternalsVisibleTo(UtilityConstants.DEMOS_ASSEMBLY_NAME)]
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namespace FishNet.Managing.Observing
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{
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/// <summary>
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/// Additional options for managing the observer system.
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/// </summary>
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[DisallowMultipleComponent]
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[AddComponentMenu("FishNet/Manager/ObserverManager")]
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public sealed class ObserverManager : MonoBehaviour
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{
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#region Internal.
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/// <summary>
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/// Current index to use for level of detail based on tick.
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/// </summary>
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internal byte LevelOfDetailIndex { get; private set; }
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#endregion
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#region Serialized.
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/// <summary>
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///
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/// </summary>
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[Tooltip("True to use the NetworkLOD system.")]
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[SerializeField]
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private bool _useNetworkLod;
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/// <summary>
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/// True to use the NetworkLOD system.
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/// </summary>
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/// <returns></returns>
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internal bool GetUseNetworkLod() => _useNetworkLod;
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/// <summary>
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/// Distance for each level of detal.
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/// </summary>
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internal List<float> GetLevelOfDetailDistances() => (_useNetworkLod) ? _levelOfDetailDistances : _singleLevelOfDetailDistances;
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[Tooltip("Distance for each level of detal.")]
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[SerializeField]
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private List<float> _levelOfDetailDistances = new List<float>();
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/// <summary>
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/// Returned when network LOD is off. Value contained is one level of detail with max distance.
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/// </summary>
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private List<float> _singleLevelOfDetailDistances = new List<float>() { float.MaxValue };
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/// <summary>
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///
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/// </summary>
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[Tooltip("True to update visibility for clientHost based on if they are an observer or not.")]
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[FormerlySerializedAs("_setHostVisibility")]
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[SerializeField]
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private bool _updateHostVisibility = true;
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/// <summary>
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/// True to update visibility for clientHost based on if they are an observer or not.
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/// </summary>
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public bool UpdateHostVisibility
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{
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get => _updateHostVisibility;
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private set => _updateHostVisibility = value;
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}
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/// <summary>
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///
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/// </summary>
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[Tooltip("Default observer conditions for networked objects.")]
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[SerializeField]
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private List<ObserverCondition> _defaultConditions = new List<ObserverCondition>();
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#endregion
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#region Private.
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/// <summary>
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/// NetworkManager on object.
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/// </summary>
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private NetworkManager _networkManager;
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/// <summary>
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/// Intervals for each level of detail.
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/// </summary>
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private uint[] _levelOfDetailIntervals;
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#endregion
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/// <summary>
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/// Initializes this script for use.
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/// </summary>
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/// <param name="manager"></param>
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internal void InitializeOnce_Internal(NetworkManager manager)
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{
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_networkManager = manager;
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ValidateLevelOfDetails();
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}
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/// <summary>
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/// Sets a new value for UpdateHostVisibility.
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/// </summary>
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/// <param name="value">New value.</param>
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/// <param name="updateType">Which objects to update.</param>
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public void SetUpdateHostVisibility(bool value, HostVisibilityUpdateTypes updateType)
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{
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//Unchanged.
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if (value == UpdateHostVisibility)
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return;
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/* Update even if server state is not known.
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* The setting should be updated so when the server
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* does start spawned objects have latest setting. */
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if (HostVisibilityUpdateContains(updateType, HostVisibilityUpdateTypes.Manager))
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UpdateHostVisibility = value;
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/* If to update spawned as well then update all networkobservers
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* with the setting and also update renderers. */
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if (_networkManager.IsServer && HostVisibilityUpdateContains(updateType, HostVisibilityUpdateTypes.Spawned))
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{
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NetworkConnection clientConn = _networkManager.ClientManager.Connection;
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foreach (NetworkObject n in _networkManager.ServerManager.Objects.Spawned.Values)
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{
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n.NetworkObserver.SetUpdateHostVisibility(value);
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//Only check to update renderers if clientHost. If not client then clientConn won't be active.
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if (clientConn.IsActive)
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n.SetRenderersVisible(n.Observers.Contains(clientConn), true);
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}
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}
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bool HostVisibilityUpdateContains(HostVisibilityUpdateTypes whole, HostVisibilityUpdateTypes part)
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{
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return (whole & part) == part;
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}
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}
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/// <summary>
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/// Adds default observer conditions to nob and returns the NetworkObserver used.
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/// </summary>
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internal NetworkObserver AddDefaultConditions(NetworkObject nob)
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{
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bool isGlobal = (nob.IsGlobal && !nob.IsSceneObject);
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bool obsAdded;
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NetworkObserver result;
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if (!nob.TryGetComponent<NetworkObserver>(out result))
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{
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obsAdded = true;
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result = nob.gameObject.AddComponent<NetworkObserver>();
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}
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else
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{
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obsAdded = false;
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}
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/* NetworkObserver is null and there are no
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* conditions to add. Nothing will change by adding
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* the NetworkObserver component so exit early. */
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if (!obsAdded && _defaultConditions.Count == 0)
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return result;
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//If the NetworkObserver component was just added.
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if (obsAdded)
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{
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/* Global nobs do not need a NetworkObserver.
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* Ultimately, a global NetworkObject is one without
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* any conditions. */
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if (isGlobal)
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return result;
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//If there are no conditions then there's nothing to add.
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if (_defaultConditions.Count == 0)
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return result;
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/* If here then there not a global networkobject and there are conditions to use.
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* Since the NetworkObserver is being added fresh, set OverrideType to UseManager
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* so that the NetworkObserver is populated with the manager conditions. */
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result.OverrideType = NetworkObserver.ConditionOverrideType.UseManager;
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}
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//NetworkObject has a NetworkObserver already on it.
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else
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{
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//If global the NetworkObserver has to be cleared and set to ignore manager.
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if (isGlobal)
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{
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result.ObserverConditionsInternal.Clear();
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result.OverrideType = NetworkObserver.ConditionOverrideType.IgnoreManager;
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}
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}
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//If ignoring manager then use whatever is already configured.
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if (result.OverrideType == NetworkObserver.ConditionOverrideType.IgnoreManager)
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{
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//Do nothing.
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}
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//If using manager then replace all with conditions.
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else if (result.OverrideType == NetworkObserver.ConditionOverrideType.UseManager)
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{
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result.ObserverConditionsInternal.Clear();
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AddMissing(result);
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}
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//Adding only new.
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else if (result.OverrideType == NetworkObserver.ConditionOverrideType.AddMissing)
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{
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AddMissing(result);
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}
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void AddMissing(NetworkObserver networkObserver)
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{
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int count = _defaultConditions.Count;
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for (int i = 0; i < count; i++)
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{
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ObserverCondition oc = _defaultConditions[i];
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if (!networkObserver.ObserverConditionsInternal.Contains(oc))
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networkObserver.ObserverConditionsInternal.Add(oc);
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}
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}
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return result;
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}
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/// <summary>
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/// Gets the tick interval to use for a lod level.
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/// </summary>
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/// <param name="lodLevel"></param>
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/// <returns></returns>
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public byte GetLevelOfDetailInterval(byte lodLevel)
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{
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if (LevelOfDetailIndex == 0)
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return 1;
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return (byte)System.Math.Pow(2, lodLevel);
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}
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/// <summary>
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/// Calculates and sets the current level of detail index for the tick.
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/// </summary>
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internal void CalculateLevelOfDetail(uint tick)
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{
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int count = GetLevelOfDetailDistances().Count;
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for (int i = (count - 1); i > 0; i--)
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{
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uint interval = _levelOfDetailIntervals[i];
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if (tick % interval == 0)
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{
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LevelOfDetailIndex = (byte)i;
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return;
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}
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}
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//If here then index is 0 and interval is every tick.
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LevelOfDetailIndex = 0;
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}
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/// <summary>
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/// Validates that level of detail intervals are proper.
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/// </summary>
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private void ValidateLevelOfDetails()
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{
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if (!_useNetworkLod)
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return;
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//No distances specified.
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if (_levelOfDetailDistances == null || _levelOfDetailDistances.Count == 0)
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{
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if (_networkManager != null)
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{
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_networkManager.LogWarning("Level of detail distances contains no entries. NetworkLOD has been disabled.");
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_useNetworkLod = false;
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}
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return;
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}
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//Make sure every distance is larger than the last.
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float lastDistance = float.MinValue;
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foreach (float dist in _levelOfDetailDistances)
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{
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if (dist <= 0f || dist <= lastDistance)
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{
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if (_networkManager != null)
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{
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_networkManager.LogError($"Level of detail distances must be greater than 0f, and each distance larger than the previous. NetworkLOD has been disabled.");
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_useNetworkLod = false;
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}
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return;
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}
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lastDistance = dist;
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}
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int maxEntries = 8;
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//Too many distances.
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if (_levelOfDetailDistances.Count > maxEntries)
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{
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_networkManager?.LogWarning("There can be a maximum of 8 level of detail distances. Entries beyond this quantity have been discarded.");
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while (_levelOfDetailDistances.Count > maxEntries)
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_levelOfDetailDistances.RemoveAt(_levelOfDetailDistances.Count - 1);
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}
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if (Application.isPlaying)
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{
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//Build intervals and sqr distances.
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int count = _levelOfDetailDistances.Count;
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_levelOfDetailIntervals = new uint[count];
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for (int i = (count - 1); i > 0; i--)
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{
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uint power = (uint)Mathf.Pow(2, i);
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_levelOfDetailIntervals[i] = power;
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}
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//Sqr
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for (int i = 0; i < count; i++)
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{
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float dist = _levelOfDetailDistances[i];
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dist *= dist;
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_levelOfDetailDistances[i] = dist;
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}
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}
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}
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}
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} |