From d730c244a54905b96117fc8025bdf209c6880ba6 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Thu, 24 Aug 2017 18:01:30 -0700
Subject: [PATCH] [kit] Return a (0,0) point if the radius is too big for the
 bounds

---
 MetaballsKit/Metaballs.swift | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/MetaballsKit/Metaballs.swift b/MetaballsKit/Metaballs.swift
index 39a111d..b748598 100644
--- a/MetaballsKit/Metaballs.swift
+++ b/MetaballsKit/Metaballs.swift
@@ -178,6 +178,9 @@ public class Field {
     }
 
     private func randomPoint(forBallWithRadius radius: Float) -> Point {
+        guard Float(bounds.width) > radius && Float(bounds.height) > radius else {
+            return Point()
+        }
         let insetBounds = bounds.insetBy(dx: CGFloat(radius), dy: CGFloat(radius))
         let x = Float(UInt32(insetBounds.minX) + arc4random_uniform(UInt32(insetBounds.width)))
         let y = Float(UInt32(insetBounds.minY) + arc4random_uniform(UInt32(insetBounds.height)))