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How can you map negative map coordinates in a 2D tile based game?
ex. (-180,100)
or (10, -8)
i need to access them with O(1). i don’t want create a huge 2d vector and consider (500,500) as (0,0) just to call negative coordinates.
kinda of a dumb question, but i really have no clue.
Thank you.
If you data is dense (all or most of the points in a known 2D range are used), nothing will beat a 2D array (O(1)). Accept the coordinate shift.
If your data is sparse, how about a hash table on the coordinate pairs. Close to O(1).