From 44d16f056215e6068f0b186a0ab766165cf3966e Mon Sep 17 00:00:00 2001
From: Erwin Coumans <blender@erwincoumans.com>
Date: Mon, 23 Oct 2006 02:54:30 +0000
Subject: Added refactored Bullet 2.x library. Important: these files are not
 part of the Blender build yet. First, the integration will be updated to make
 use of the new Bullet version. Then all build systems needs to be updated.
 The refactoring didn't leave a single file the same, all filenames and
 classes have bt prefix, methodnames start with lowercase, a single headerfile
 can be included, and also a single include path. Plan is to make use of this
 Bullet 2.x version in extern/bullet2 within the coming weeks, then
 extern/bullet can be discarded/ignored/content removed.

---
 .../CollisionShapes/btSphereShape.cpp              | 74 ++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 extern/bullet2/src/BulletCollision/CollisionShapes/btSphereShape.cpp

(limited to 'extern/bullet2/src/BulletCollision/CollisionShapes/btSphereShape.cpp')

diff --git a/extern/bullet2/src/BulletCollision/CollisionShapes/btSphereShape.cpp b/extern/bullet2/src/BulletCollision/CollisionShapes/btSphereShape.cpp
new file mode 100644
index 00000000000..39e458c0f22
--- /dev/null
+++ b/extern/bullet2/src/BulletCollision/CollisionShapes/btSphereShape.cpp
@@ -0,0 +1,74 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btSphereShape.h"
+#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
+
+#include "LinearMath/btQuaternion.h"
+
+
+btSphereShape ::btSphereShape (btScalar radius)
+{
+	m_implicitShapeDimensions.setX(radius);
+}
+
+btVector3	btSphereShape::localGetSupportingVertexWithoutMargin(const btVector3& vec)const
+{
+	return btVector3(0.f,0.f,0.f);
+}
+
+void	btSphereShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const
+{
+	for (int i=0;i<numVectors;i++)
+	{
+		supportVerticesOut[i].setValue(0.f,0.f,0.f);
+	}
+}
+
+
+btVector3	btSphereShape::localGetSupportingVertex(const btVector3& vec)const
+{
+	btVector3 supVertex;
+	supVertex = localGetSupportingVertexWithoutMargin(vec);
+
+	btVector3 vecnorm = vec;
+	if (vecnorm .length2() < (SIMD_EPSILON*SIMD_EPSILON))
+	{
+		vecnorm.setValue(-1.f,-1.f,-1.f);
+	} 
+	vecnorm.normalize();
+	supVertex+= getMargin() * vecnorm;
+	return supVertex;
+}
+
+
+//broken due to scaling
+void btSphereShape::getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
+{
+	const btVector3& center = t.getOrigin();
+	btVector3 extent(getMargin(),getMargin(),getMargin());
+	aabbMin = center - extent;
+	aabbMax = center + extent;
+}
+
+
+
+void	btSphereShape::calculateLocalInertia(btScalar mass,btVector3& inertia)
+{
+	btScalar elem = 0.4f * mass * getMargin()*getMargin();
+	inertia[0] = inertia[1] = inertia[2] = elem;
+
+}
+
-- 
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