新增FishNet文档

2026-09-20 15:53:11 +08:00
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+# Modifying Conditions
+
+Several conditions may be modified at run-time. What can be modified for each condition may vary. I encourage you to view the [API](https://fish-networking.com/FishNet/api/api/FishNet.Component.Observing.html) to see what each condition exposes.
+
+To change properties on a condition you must access the condition through the [NetworkObserver](../../../fishnet-building-blocks/components/network-observer.md) component.
+
+```csharp
+// Below is an example of modifying the distance requirement
+// on a DistanceCondition. This line of code can be called from
+// any NetworkBehaviour. You may also use nbReference.NetworkObserver...
+base.NetworkObserver.GetObserverCondition<DistanceCondition>().MaximumDistance = 10f;
+```
+
+All conditions can be enabled or disabled. When a condition is disabled it's requirements are ignored, as if the condition does not exist. This can be useful for temporarily disabling condition requirements on objects.
+
+```csharp
+// The OwnerOnlyCondition is returned and disabled.
+// This allows all players to see the object, rather than just the owner.
+ObserverCondition c = base.NetworkObject.NetworkObserver.GetObserverCondition<OwnerOnlyCondition>();
+c.SetIsEnabled(false);
+// Even though we are returning ObserverCondition type, it could be casted to
+// OwnerOnlyCondition.
+```