From b3ae4e889872ca0b9ca76f1d17b2f0b961226729 Mon Sep 17 00:00:00 2001
From: Normand Briere <nbriere@noware.ca>
Date: Mon, 05 Aug 2019 21:48:55 -0400
Subject: [PATCH] Fix physics UI

---
 cSpring.java |   18 ++++++++++++++----
 1 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/cSpring.java b/cSpring.java
index fcf1d91..b5d339c 100644
--- a/cSpring.java
+++ b/cSpring.java
@@ -543,13 +543,13 @@
     }
 
     // serial lost
-    void DrawNode0(CameraPane display)
+    void DrawNode0(iCameraPane display)
     {
         super.DrawNode(display, null, false);
     }
 
     
-    void DrawNode/*notused*/(CameraPane display, Object3D /*Composite*/ root, boolean selected)
+    void DrawNode/*notused*/(iCameraPane display, Object3D /*Composite*/ root, boolean selected)
     {
 //        assert displaylist == -1;
 
@@ -565,7 +565,7 @@
 //        }
         
         //new Exception().printStackTrace();
-        GL gl = display.GetGL(); // getGL();
+        GL gl = display.GetGL0(); // getGL();
 
         //gl.glDisable(GL.GL_LIGHTING);
 
@@ -1208,7 +1208,10 @@
                 }
                 
                 if (edges.size()%2 != 0)
+                {
+                new Exception().printStackTrace();
                     System.exit(0);
+                }
             }
 
        //     if (clearsprings)
@@ -1516,7 +1519,10 @@
                     second = springs.get((i+1)%springs.size());
 
                     if (first == second)
+                    {
+                new Exception().printStackTrace();
                         System.exit(0);
+                    }
 
                     temp.set(first.GetOther(this).position);
                     temp.sub(position);
@@ -1646,7 +1652,10 @@
                 Spring second = springs.get((i+1)%springs.size());
                 
                 if (first == second)
+                {
+                    new Exception().printStackTrace();
                     System.exit(0);
+                }
                 
                 temp.set(first.GetOther(this).position);
                 temp.sub(position);
@@ -1715,7 +1724,7 @@
             
     //        Phys.matrix.Transform(normal);
             
-            if (position instanceof Vertex)
+            if (position instanceof Vertex && ((Vertex)position).norm != null)
                 ((Vertex)position).norm.set(normal.x,normal.y,normal.z);
         }
 
@@ -3289,6 +3298,7 @@
             
             if (N2.mass == Float.MAX_VALUE)
             {
+                    new Exception().printStackTrace();
                 System.exit(0);
                 magnitude *= solidity; // * K;
                 

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