Merge pull request #16 from spacenation/rounded-star-smoothness-fix

Fixing rounded star when smoothness is greater than 0.5

Author: ay42

Sources/Shapes/RoundedStarPolygons/RoundedStarPolygon.swift

@@ -102,7 +102,7 @@ extension Path {
 
                 let lastPoint: CGPoint = getLastPoint(from: centerPoint, angle: lastAngle, hypotenuse: hypotenuse, smoothness: smoothness)
 
-                path.addCircularCornerRadiusArc(from: point, via: viaPoint, to: nextPoint, radius: -usableConcaveRadius, clockwise: true)
+                path.addCircularCornerRadiusArc(from: point, via: viaPoint, to: nextPoint, radius: smoothness > 0.5 ? usableConcaveRadius: -usableConcaveRadius, clockwise: smoothness > 0.5 ? false : true)
 
                 path.addCircularCornerRadiusArc(from: viaPoint, via: nextPoint, to: lastPoint, radius: usableConvexRadius, clockwise: false)
             }
@@ -120,6 +120,11 @@ struct RoundedStarPolygon_Previews: PreviewProvider {
             .background(Circle())
             .previewLayout(.fixed(width: 400, height: 400))
 
+        RoundedStarPolygon(points: 3, smoothness: 0.87, radius: 40)
+            .fill(Color.orange)
+            .background(Circle())
+            .previewLayout(.fixed(width: 400, height: 400))
+        
         RoundedStarPolygon(points: 5, smoothness: 0.5, radius: 20)
             .strokeBorder(lineWidth: 1)
             .foregroundColor(.yellow)