bugfix, particle vs. particle collision

examples/testbed/framework/test_entries.cpp

@@ -65,6 +65,7 @@
 #include <testbed/tests/shirt.h>
 #include <testbed/tests/particle_types.h>
 #include <testbed/tests/tension_mapping.h>
+#include <testbed/tests/self_collision.h>
 #include <testbed/tests/single_pendulum.h>
 #include <testbed/tests/rope_test.h>
 #include <testbed/tests/mass_spring.h>
@@ -117,6 +118,7 @@ TestEntry g_tests[] =
 	{ "Shirt", &Shirt::Create },
 	{ "Particle Types", &ParticleTypes::Create },
 	{ "Tension Mapping", &TensionMapping::Create },
+	{ "Self-Collision", &SelfCollision::Create },
 	{ "Mass-Spring System", &MassSpring::Create },
 	{ "Single Pendulum", &SinglePendulum::Create },
 	{ "Rope", &Rope::Create },

examples/testbed/tests/self_collision.h

@@ -0,0 +1,83 @@
+/*
+* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 1. The origin of this software must not be misrepresented; you must not
+* claim that you wrote the original software. If you use this software
+* in a product, an acknowledgment in the product documentation would be
+* appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+* misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SELF_COLLISION_H
+#define SELF_COLLISION_H
+
+class SelfCollision : public ClothTest
+{
+public:
+	SelfCollision() : m_rectangleGarment(5.0f, 5.0f)
+	{
+		// Generate 2D mesh
+		m_rectangleGarmentMesh.Set(&m_rectangleGarment, 1.0f);
+
+		// Create 3D mesh
+		m_rectangleClothMesh.Set(&m_rectangleGarmentMesh);
+
+		//  
+		for (u32 i = 0; i < m_rectangleClothMesh.vertexCount; ++i)
+		{
+			m_rectangleClothMesh.vertices[i].y += 10.0f;
+		}
+
+		b3ClothDef def;
+		def.mesh = &m_rectangleClothMesh;
+		def.density = 1.0f;
+		def.structural = 100000.0f;
+		
+		m_cloth = m_world.CreateCloth(def);
+
+		for (b3Particle* p = m_cloth->GetParticleList().m_head; p; p = p->GetNext())
+		{
+			p->SetRadius(0.25f);
+		}
+
+		{
+			b3BodyDef bd;
+			bd.type = e_staticBody;
+
+			b3Body* b = m_world.CreateBody(bd);
+
+			m_boxHull.Set(50.0f, 1.0f, 50.0f);
+
+			b3HullShape boxShape;
+			boxShape.m_hull = &m_boxHull;
+			boxShape.m_radius = 0.2f;
+
+			b3ShapeDef sd;
+			sd.shape = &boxShape;
+			sd.friction = 1.0f;
+
+			b->CreateShape(sd);
+		}
+	}
+
+	static Test* Create()
+	{
+		return new SelfCollision();
+	}
+
+	b3RectangleGarment m_rectangleGarment;
+	b3GarmentMesh m_rectangleGarmentMesh;
+	b3GarmentClothMesh m_rectangleClothMesh;
+
+	b3BoxHull m_boxHull;
+};
+
+#endif