Question about IJobNativeMultiHashMapMergedSharedKeyIndices

Unity Engine
,
1

I have had a look at this thread:
How does IJobNativeMultiHashMapMergedSharedKeyIndices work? ,

but it unfortunately did not answer my question fully.

It actually extended my question to asking about a piece of code in the boid sample in particular:

            public void ExecuteFirst(int index)
            {
                var position = cellSeparation[index].Value / cellCount[index];
                ...

            }

            public void ExecuteNext(int cellIndex, int index)
            {
                cellCount[cellIndex]      += 1;
                ...
                cellIndices[index]        = cellIndex;
            }

I was wondering how the cellCount is used in Executefirst (for the first index), if at this point it will have just been initialised to 1 (following from the video) making the division redundant. It is however changed in ExecuteNext (again affecting first index). I was wondering if the ExecuteNext actually affects the outcome of ExecuteFirst, as the value is seemingly used before in ExecuteFirst. I probably just misunderstood the working of this particular Job and would get some clarification. Hopefully someone will be able to help me and thanks a lot.

2

Just found that the cellcount is used at a later point by other boids, but it still does not explain why there is a division by one in the first place.