append
Appends the high resolution indices of the given worldId to the provided collection. This can be used to determine which NPCs the player is currently seeing in the client. Servers often rely on this metric to determine things such as aggression/hunt.
Return
the provided collection to chaining.
Parameters
the worldId to collect the indices from. For root world, use ROOT_WORLD.
the mutable collection of integer indices to append the indices into.
whether to throw an exception if the world does not exist.
Throws
if the world id is not in range of 0..<2048, or ROOT_WORLD, as long as throwExceptionIfNoWorld is true.
if the provided world has not been allocated. It is up to the caller to ensure the world they're accessible is available. Root world will always be available as long as the given info object is allocated. This will only be thrown if throwExceptionIfNoWorld is true.