Fix crash when attempting to draw a base node for a building that has a bib with an empty first frame

Author: Rampastring

src/TSMapEditor/Rendering/MapView.cs

@@ -1043,7 +1043,7 @@ private void DrawBaseNode(GraphicalBaseNode graphicalBaseNode)
             int yDrawOffset = Constants.CellSizeY / -2;
             int frameIndex = 0;
 
-            if ((graphics == null || graphics.GetFrame(frameIndex) == null) && bibGraphics == null)
+            if ((graphics == null || graphics.GetFrame(frameIndex) == null) && (bibGraphics == null || bibGraphics.GetFrame(0) == null))
             {
                 DrawStringWithShadow(iniName, 1, drawPoint.ToXNAVector(), replacementColor, 1.0f);
                 return;
@@ -1054,6 +1054,7 @@ private void DrawBaseNode(GraphicalBaseNode graphicalBaseNode)
             if (bibGraphics != null)
             {
                 PositionedTexture bibFrame = bibGraphics.GetFrame(0);
+
                 texture = bibFrame.Texture;
 
                 int bibFinalDrawPointX = drawPoint.X - bibFrame.ShapeWidth / 2 + bibFrame.OffsetX + Constants.CellSizeX / 2;