From f3e93176b9049747774ec516e5e1ba56894add34 Mon Sep 17 00:00:00 2001
From: Ian Gulliver <ian@flamingcow.tv>
Date: Thu, 11 Jul 2019 18:14:06 +0000
Subject: [PATCH] Safari fixes

---
 Architype.js   |  6 +++++-
 LayoutGroup.js |  2 +-
 LayoutLink.js  | 27 ++++++++++++++-------------
 3 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/Architype.js b/Architype.js
index afbe2a3..a4f11eb 100644
--- a/Architype.js
+++ b/Architype.js
@@ -1,5 +1,9 @@
 'use strict';
 
+addEventListener('error', (e) => {
+  console.log(e);
+});
+
 class Architype {
   constructor(container) {
     this.container_ = container;
@@ -25,7 +29,7 @@ class Architype {
     this.drawGeneration_ = -1;
 
     this.render_ = [];
-    for (let i = 0; i < navigator.hardwareConcurrency; ++i) {
+    for (let i = 0; i < (navigator.hardwareConcurrency || 2); ++i) {
       let render = new Worker('render.js');
       render.addEventListener('message', (e) => { this.onRender(e); });
       this.render_.push(render);
diff --git a/LayoutGroup.js b/LayoutGroup.js
index 51259fc..f5110f6 100644
--- a/LayoutGroup.js
+++ b/LayoutGroup.js
@@ -17,7 +17,7 @@ class LayoutGroup {
     for (let node of this.nodes) {
       for (let i of [0, 1]) {
         this.vec[i] += node.vec[i];
-      };
+      }
     }
   }
 
diff --git a/LayoutLink.js b/LayoutLink.js
index 19f196e..e626b8e 100644
--- a/LayoutLink.js
+++ b/LayoutLink.js
@@ -8,6 +8,19 @@ class LayoutLink {
     this.nodesByPos_ = nodesByPos;
     this.linksByPos_ = linksByPos;
     this.labelsByPos_ = labelsByPos;
+
+    // Mapping to lines.svg clock-style numbering
+    this.outPointLookup_ = new StringMap([
+      [[ 0,-1], 0],
+      [[ 1,-1], 1],
+      [[ 1, 0], 2],
+      [[ 1, 1], 3],
+      [[ 0, 1], 4],
+      [[-1, 1], 5],
+      [[-1, 0], 6],
+      [[-1,-1], 7],
+    ]);
+
     this.bfs();
   }
 
@@ -99,18 +112,6 @@ class LayoutLink {
     }
   }
 
-  // Mapping to lines.svg clock-style numbering
-  outPointLookup = new StringMap([
-    [[ 0,-1], 0],
-    [[ 1,-1], 1],
-    [[ 1, 0], 2],
-    [[ 1, 1], 3],
-    [[ 0, 1], 4],
-    [[-1, 1], 5],
-    [[-1, 0], 6],
-    [[-1,-1], 7],
-  ]);
-
   getCost(from, to) {
     // Only handles adjacent positions
 
@@ -175,7 +176,7 @@ class LayoutLink {
         to[0] - from[0],
         to[1] - from[1],
     ];
-    return this.outPointLookup.get(offset);
+    return this.outPointLookup_.get(offset);
   }
 
   getInPoint(from, to) {