Fixed creating entities in the viewport logic to use hit test detection.

Signed-off-by: Chris Galvan <chgalvan@amazon.com>

Code/Editor/Viewport.cpp

@@ -46,24 +46,7 @@ void QtViewport::BuildDragDropContext(AzQtComponents::ViewportDragContext& conte
 
     PreWidgetRendering(); // required so that the current render cam is set.
 
-    Vec3 pos = Vec3(ZERO);
-    HitContext hit;
-    if (HitTest(pt, hit))
-    {
-        pos = hit.raySrc + hit.rayDir * hit.dist;
-        pos = SnapToGrid(pos);
-    }
-    else
-    {
-        bool hitTerrain;
-        pos = ViewToWorld(pt, &hitTerrain);
-        if (hitTerrain)
-        {
-            pos.z = GetIEditor()->GetTerrainElevation(pos.x, pos.y);
-        }
-        pos = SnapToGrid(pos);
-    }
-    context.m_hitLocation = AZ::Vector3(pos.x, pos.y, pos.z);
+    context.m_hitLocation = GetHitLocation(pt);
 
     PostWidgetRendering();
 }
@@ -1154,6 +1137,29 @@ bool QtViewport::HitTest(const QPoint& point, HitContext& hitInfo)
     return false;
 }
 
+AZ::Vector3 QtViewport::GetHitLocation(const QPoint& point)
+{
+    Vec3 pos = Vec3(ZERO);
+    HitContext hit;
+    if (HitTest(point, hit))
+    {
+        pos = hit.raySrc + hit.rayDir * hit.dist;
+        pos = SnapToGrid(pos);
+    }
+    else
+    {
+        bool hitTerrain;
+        pos = ViewToWorld(point, &hitTerrain);
+        if (hitTerrain)
+        {
+            pos.z = GetIEditor()->GetTerrainElevation(pos.x, pos.y);
+        }
+        pos = SnapToGrid(pos);
+    }
+
+    return AZ::Vector3(pos.x, pos.y, pos.z);
+}
+
 //////////////////////////////////////////////////////////////////////////
 void QtViewport::SetZoomFactor(float fZoomFactor)
 {