2014-04-22 03:00:39 +02:00
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module Map.Map where
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2014-04-18 16:07:51 +02:00
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import Map.Types
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-- potentially to be expanded to Nodes
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giveNeighbours :: (Int, Int) -> [(Int,Int)]
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giveNeighbours (x,y) = filter (not . negative) all
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where
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all = if even y then [(x+1,y), (x-1,y), (x,y+1), (x,y-1), (x+1,y+1), (x+1,y-1)]
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else [(x+1,y), (x-1,y), (x,y+1), (x,y-1), (x-1,y+1), (x-1,y-1)]
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negative :: (Int, Int) -> Bool
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negative (x,y) = x < 0 || y < 0
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