Ray-casting algorithm: Difference between revisions

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@@ Line 497: / Line 497: @@
                 rayIntersects =
                     intersects p line &&
-                    (not (py == ay) || by < py) &&
+                    (py /= ay || by < py) &&
-                    (not (py == by) || ay < py)
+                    (py /= by || ay < py)
                 ((ax, ay), (bx, by)) = side
                 line = carrier side</lang>