[Scummvm-cvs-logs] SF.net SVN: scummvm: [24373] scummvm/trunk/engines/scumm/boxes.cpp

[fingolfin at users.sourceforge.net]

Revision: 24373
          http://svn.sourceforge.net/scummvm/?rev=24373&view=rev
Author:   fingolfin
Date:     2006-10-18 08:55:10 -0700 (Wed, 18 Oct 2006)

Log Message:
-----------
cleanup

Modified Paths:
--------------
    scummvm/trunk/engines/scumm/boxes.cpp

Modified: scummvm/trunk/engines/scumm/boxes.cpp
===================================================================
--- scummvm/trunk/engines/scumm/boxes.cpp	2006-10-18 15:09:11 UTC (rev 24372)
+++ scummvm/trunk/engines/scumm/boxes.cpp	2006-10-18 15:55:10 UTC (rev 24373)
@@ -542,16 +542,21 @@
 			return true;
 	}
 	
+	// Finally, fall back to the classic algorithm to compute containment
+	// in a convex polygon: For each (oriented) side of the polygon
+	// (quadrangle in this case), compute whether p is "left" or "right"
+	// from it.
+
 	if (!compareSlope(box.ul, box.ur, p))
 		return false;
 
 	if (!compareSlope(box.ur, box.lr, p))
 		return false;
-		
-	if (!compareSlope(box.ll, p, box.lr))
+
+	if (!compareSlope(box.lr, box.ll, p))
 		return false;
 
-	if (!compareSlope(box.ul, p, box.ll))
+	if (!compareSlope(box.ll, box.ul, p))
 		return false;
 
 	return true;


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