From 41eb0744068b3b254a3fd2afad59ecfbcdc4422d Mon Sep 17 00:00:00 2001
From: Chuyuan Fu <fuchuyuan.kelly@gmail.com>
Date: Tue, 29 Oct 2019 14:40:36 -0700
Subject: [PATCH] avoid dividing by 0

---
 src/BulletSoftBody/btSoftBody.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/BulletSoftBody/btSoftBody.h b/src/BulletSoftBody/btSoftBody.h
index 5f0afc439..d894d5cf5 100644
--- a/src/BulletSoftBody/btSoftBody.h
+++ b/src/BulletSoftBody/btSoftBody.h
@@ -979,7 +979,7 @@ public:
 		btVector3 com(0, 0, 0);
 		for (int i = 0; i < m_nodes.size(); i++)
 		{
-			com += (m_nodes[i].m_x / m_nodes[i].m_im);
+			com += (m_nodes[i].m_x * this->getMass(i));
 		}
 		com /= this->getTotalMass();
 		return com;