From 46d8a8173985ee90d251e78af21d1b0262f6e671 Mon Sep 17 00:00:00 2001
From: Aurelius Prochazka <aurephd@gmail.com>
Date: Mon, 3 Sep 2018 00:58:09 -0700
Subject: [PATCH] Avoid force unwrapping of the initial touch index

---
 Source/views/MacawView.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Source/views/MacawView.swift b/Source/views/MacawView.swift
index f3c9d716..94a43df3 100644
--- a/Source/views/MacawView.swift
+++ b/Source/views/MacawView.swift
@@ -296,7 +296,9 @@ open class MacawView: MView, MGestureRecognizerDelegate {
 
             var points = [TouchPoint]()
             for initialTouch in initialTouches {
-                let currentIndex = touches.index(of: initialTouch)!
+                guard let currentIndex = touches.index(of: initialTouch) else {
+                    continue
+                }
                 let currentTouch = touches[currentIndex]
                 let location = CGPoint(x: currentTouch.x, y: currentTouch.y)
                 let inverted = currentNode.place.invert()!