Uniqueness
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Uniqueness is about naming entities and guaranteeing that a named entity can only exist once. This name is referred to as Unique ID.
To start using uniqueness, set CoherenceSync's Uniqueness setting to No Duplicates:
The ID or name of the entity. Use any name you might help you recognize it over the network, for example: game manager, boss, spawner, chest 1, ...
When Manual Unique ID is left empty, Prefab Instance Unique ID will be used instead. The latter is assigned automatically (for prefab instances), to tell apart different instances on the scene easily. This is handy when your scene has a handful of the entities [that come from the same Prefab] around.
In coherence, the concepts of Authority, Persistence and Uniqueness often go hand-in-hand. For example, uniqueness can be useful to keep track of persistent objects. Despite this, all three can also function on their own.
Replacement occurs when there's an attempt to create a named entity that already exists. For example, you have player in your scene, and you instantiate another player.
By default, a Replace strategy is applied. This strategy makes sure the actual GameObject is kept, but the underlying linked entity is updated. This way, Unity Object references are not lost.
However, there's scenarios where you might want to trigger an actual Destroy operation when this happens - for such cases, the Destroy strategy can be used.
