Add function for determining convex turn direction as well

1 files changed, 13 insertions, 0 deletions

diff --git a/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp b/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
index b2facc97..6b39de54 100644
--- a/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
+++ b/sigmodr/widgets/mapeditor/WorldMapPlacement.cpp
@@ -90,6 +90,19 @@ static Corner turnDirection(const QPoint& previous, const QPoint& current, const
     return Invalid;
 }
 
+static Corner convexTurnDirection(const QPoint& previous, const QPoint& current, const QPoint& next)
+{
+    if ((current.y() < previous.y()) && (current.x() < next.x()))
+        return BottomRight;
+    if ((previous.x() < current.x()) && (current.y() < next.y()))
+        return BottomLeft;
+    if ((previous.y() < current.y()) && (next.x() < current.x()))
+        return TopLeft;
+    if ((current.x() < previous.x()) && (next.y() < current.y()))
+        return TopRight;
+    return Invalid;
+}
+
 template<typename T> static bool between(const T& middle, const T& end1, const T& end2)
 {
     return (qMin(end1, end2) < middle) && (middle < qMax(end1, end2));