Moved up src/ one level

src/IntelliHelper/IntelliHelper.h

@@ -0,0 +1,31 @@
+#ifndef INTELLIHELPER_H
+#define INTELLIHELPER_H
+
+#include<QPoint>
+
+
+class IntelliHelper{
+
+public:
+
+    static inline float sign(QPoint& p1, QPoint& p2, QPoint& p3){
+        return (p1.x()-p3.x())*(p2.y()-p3.y())-(p2.x()-p3.x())*(p1.y()-p3.y());
+    }
+
+
+    static inline bool isInTriangle(QPoint& A, QPoint& B, QPoint& C, QPoint& P){
+        float val1, val2, val3;
+        bool neg, pos;
+
+        val1 = IntelliHelper::sign(P,A,B);
+        val2 = IntelliHelper::sign(P,B,C);
+        val3 = IntelliHelper::sign(P,C,A);
+
+        neg = (val1<0.f) || (val2<0.f) || (val3<0.f);
+        pos = (val1>0.f) || (val2>0.f) || (val3>0.f);
+
+        return !(neg && pos);
+    }
+};
+
+#endif