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by kcroarkin
36 days ago
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(crossing fingers I one shot formatting correctly) I use 2-wise for figuring out which water surfaces to draw: ⍉l⊤⍸∊(chunk=¯1)(2>⌿⍤2⍪⍤2)⊢0⍴⍨⊃l - ⍪⍤2 add padding on top of surface of bit mask of water - 2>⌿⍤2 identify where surface is exposed by seeing if air comes after water vertically - ⍉l⊤⍸∊ collapse and get where water is in chunk position format row-by-row |
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