From 169bc3880df8951f6ce8bbcb335ce6da8ad892e3 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Wed, 18 Oct 2006 15:55:10 +0000
Subject: cleanup

svn-id: r24373
---
 engines/scumm/boxes.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'engines')

diff --git a/engines/scumm/boxes.cpp b/engines/scumm/boxes.cpp
index 534426b635..736915ff08 100644
--- a/engines/scumm/boxes.cpp
+++ b/engines/scumm/boxes.cpp
@@ -542,16 +542,21 @@ bool ScummEngine::checkXYInBoxBounds(int b, int x, int y) {
 			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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