// helper function for [SyncVar] NetworkIdentities.
// dirtyBit is a mask like 00010
protected void SetSyncVarNetworkBehaviour <T>(T newBehaviour, ref T behaviourField, ulong dirtyBit, ref NetworkBehaviourSyncVar syncField) where T : NetworkBehaviour
{
if (GetSyncVarHookGuard(dirtyBit))
{
return;
}
uint newNetId = 0;
int componentIndex = 0;
if (newBehaviour != null)
{
newNetId = newBehaviour.netId;
componentIndex = newBehaviour.ComponentIndex;
if (newNetId == 0)
{
Debug.LogWarning($"{nameof(SetSyncVarNetworkBehaviour)} NetworkIdentity {newBehaviour} has a zero netId. Maybe it is not spawned yet?");
}
}
syncField = new NetworkBehaviourSyncVar(newNetId, componentIndex);
SetSyncVarDirtyBit(dirtyBit);
// assign new one on the server, and in case we ever need it on client too
behaviourField = newBehaviour;
// Debug.Log($"SetSyncVarNetworkBehaviour NetworkIdentity {GetType().Name} bit [{dirtyBit}] netIdField:{oldField}->{syncField}");
}
public void GeneratedSyncVarDeserialize_NetworkBehaviour <T>(ref T field, Action <T, T> OnChanged, NetworkReader reader, ref NetworkBehaviourSyncVar netIdField)
where T : NetworkBehaviour
{
NetworkBehaviourSyncVar previousNetId = netIdField;
T previousBehaviour = field;
netIdField = reader.ReadNetworkBehaviourSyncVar();
// get the new NetworkBehaviour now that netId field is set
field = GetSyncVarNetworkBehaviour(netIdField, ref field);
// any hook? then call if changed.
if (OnChanged != null && !SyncVarEqual(previousNetId, ref netIdField))
{
OnChanged(previousBehaviour, field);
}
}
protected bool SyncVarNetworkBehaviourEqual<T>(T newBehaviour, NetworkBehaviourSyncVar syncField) where T : NetworkBehaviour
{
uint newNetId = 0;
int newComponentIndex = 0;
if (newBehaviour != null)
{
newNetId = newBehaviour.netId;
newComponentIndex = newBehaviour.ComponentIndex;
if (newNetId == 0)
{
logger.LogWarning("SetSyncVarNetworkIdentity NetworkIdentity " + newBehaviour + " has a zero netId. Maybe it is not spawned yet?");
}
}
// netId changed?
return syncField.Equals(newNetId, newComponentIndex);
}
// helper function for [SyncVar] NetworkIdentities.
// -> ref GameObject as second argument makes OnDeserialize processing easier
protected T GetSyncVarNetworkBehaviour <T>(NetworkBehaviourSyncVar syncNetBehaviour, ref T behaviourField) where T : NetworkBehaviour
{
// server always uses the field
if (isServer)
{
return(behaviourField);
}
// client always looks up based on netId because objects might get in and out of range
// over and over again, which shouldn't null them forever
if (!NetworkClient.spawned.TryGetValue(syncNetBehaviour.netId, out NetworkIdentity identity))
{
return(null);
}
behaviourField = identity.NetworkBehaviours[syncNetBehaviour.componentIndex] as T;
return(behaviourField);
}
public void GeneratedSyncVarSetter_NetworkBehaviour <T>(T value, ref T field, ulong dirtyBit, Action <T, T> OnChanged, ref NetworkBehaviourSyncVar netIdField)
where T : NetworkBehaviour
{
if (!SyncVarNetworkBehaviourEqual(value, netIdField))
{
T oldValue = field;
SetSyncVarNetworkBehaviour(value, ref field, dirtyBit, ref netIdField);
// call hook (if any)
if (OnChanged != null)
{
// in host mode, setting a SyncVar calls the hook directly.
// in client-only mode, OnDeserialize would call it.
// we use hook guard to protect against deadlock where hook
// changes syncvar, calling hook again.
if (NetworkServer.localClientActive && !GetSyncVarHookGuard(dirtyBit))
{
SetSyncVarHookGuard(dirtyBit, true);
OnChanged(oldValue, value);
SetSyncVarHookGuard(dirtyBit, false);
}
}
}
}
