From 1876592d225edf097e9e56726c088c602fa8c825 Mon Sep 17 00:00:00 2001
From: Irlan <irlanrobson@users.noreply.github.com>
Date: Sun, 23 Jun 2019 15:29:47 -0300
Subject: [PATCH] Delete world body contacts if world gets detached.

---
 include/bounce/cloth/cloth.h |  5 -----
 src/bounce/cloth/cloth.cpp   | 17 +++++++++++++++++
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/include/bounce/cloth/cloth.h b/include/bounce/cloth/cloth.h
index 288c724..4e7136c 100644
--- a/include/bounce/cloth/cloth.h
+++ b/include/bounce/cloth/cloth.h
@@ -204,11 +204,6 @@ inline b3Vec3 b3Cloth::GetGravity() const
 	return m_gravity;
 }
 
-inline void b3Cloth::SetWorld(b3World* world)
-{
-	m_world = world;
-}
-
 inline const b3World* b3Cloth::GetWorld() const
 {
 	return m_world;
diff --git a/src/bounce/cloth/cloth.cpp b/src/bounce/cloth/cloth.cpp
index 0152bac..cdec9be 100644
--- a/src/bounce/cloth/cloth.cpp
+++ b/src/bounce/cloth/cloth.cpp
@@ -293,6 +293,23 @@ b3Cloth::~b3Cloth()
 	}
 }
 
+void b3Cloth::SetWorld(b3World* world)
+{
+	if (!world && m_world)
+	{
+		// Destroy body contacts
+		b3ParticleBodyContact* c = m_contactManager.m_particleBodyContactList.m_head;
+		while (c)
+		{
+			b3ParticleBodyContact* boom = c;
+			c = c->m_next;
+			m_contactManager.Destroy(boom);
+		}
+	}
+
+	m_world = world;
+}
+
 b3Particle* b3Cloth::CreateParticle(const b3ParticleDef& def)
 {
 	void* mem = m_particleBlocks.Allocate();