Move last inside the loop

1 files changed, 1 insertions, 2 deletions

diff --git a/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp b/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
index 70ebfd91..6cb4e41f 100644
--- a/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
+++ b/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
@@ -130,9 +130,9 @@ QPoint WorldMapPlacement::find(const QPoint& point)
     {
         if (!polygon.containsPoint(point, Qt::OddEvenFill))
             continue;
-        QPoint last = polygon[0];
         for (int i = 1; i < polygon.size(); ++i)
         {
+            const QPoint last = polygon[i - 1];
             const QPoint cur = polygon[i];
             const QPoint next = polygon[(i + 1) % polygon.size()];
             if (((point.x() - last.x()) * (point.x() - cur.x())) < 0)
@@ -156,7 +156,6 @@ QPoint WorldMapPlacement::find(const QPoint& point)
             {
                 // TODO: Corner is concave
             }
-            last = cur;
         }
     }
     return best.topLeft().toPoint();