Vapre 63d597e4ad ShroudRenderer UpdateShroud only when at least one cell is dirty. ...

UpdateShroud shows up in profile reports as one of the most
active methods (2.3% CPU time, main mono thread).

This commit introduces `anyCellDirty` to indicate that at lease one
of the cells was marked as dirty.

Avoiding the need to traverse all projected cells of the map
to find any dirty cell.

This reduces the number of shroud updates by at least 50% during a
test game. I assume this is related to renders occurring more
often than logic ticks(?).

2020-10-25 23:01:19 +01:00

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