From e12c89e8c9896b2e5cdd70dbd2d2acb449ff4b94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <rverschelde@gmail.com>
Date: Sat, 13 Jan 2018 14:01:53 +0100
Subject: bullet: Streamline bundling, remove extraneous src/ folder

Document version and how to extract sources in thirdparty/README.md.
Drop unnecessary CMake and Premake files.
Simplify SCsub, drop unused one.
---
 .../bullet/src/LinearMath/btGeometryUtil.cpp       | 185 ---------------------
 1 file changed, 185 deletions(-)
 delete mode 100644 thirdparty/bullet/src/LinearMath/btGeometryUtil.cpp

(limited to 'thirdparty/bullet/src/LinearMath/btGeometryUtil.cpp')

diff --git a/thirdparty/bullet/src/LinearMath/btGeometryUtil.cpp b/thirdparty/bullet/src/LinearMath/btGeometryUtil.cpp
deleted file mode 100644
index 5ac230f712..0000000000
--- a/thirdparty/bullet/src/LinearMath/btGeometryUtil.cpp
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
-Copyright (c) 2003-2006 Gino van den Bergen / 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 "btGeometryUtil.h"
-
-
-/*
-  Make sure this dummy function never changes so that it
-  can be used by probes that are checking whether the
-  library is actually installed.
-*/
-extern "C"
-{	
-	void btBulletMathProbe ();
-
-	void btBulletMathProbe () {}
-}
-
-
-bool	btGeometryUtil::isPointInsidePlanes(const btAlignedObjectArray<btVector3>& planeEquations, const btVector3& point, btScalar	margin)
-{
-	int numbrushes = planeEquations.size();
-	for (int i=0;i<numbrushes;i++)
-	{
-		const btVector3& N1 = planeEquations[i];
-		btScalar dist = btScalar(N1.dot(point))+btScalar(N1[3])-margin;
-		if (dist>btScalar(0.))
-		{
-			return false;
-		}
-	}
-	return true;
-		
-}
-
-
-bool	btGeometryUtil::areVerticesBehindPlane(const btVector3& planeNormal, const btAlignedObjectArray<btVector3>& vertices, btScalar	margin)
-{
-	int numvertices = vertices.size();
-	for (int i=0;i<numvertices;i++)
-	{
-		const btVector3& N1 = vertices[i];
-		btScalar dist = btScalar(planeNormal.dot(N1))+btScalar(planeNormal[3])-margin;
-		if (dist>btScalar(0.))
-		{
-			return false;
-		}
-	}
-	return true;
-}
-
-bool notExist(const btVector3& planeEquation,const btAlignedObjectArray<btVector3>& planeEquations);
-
-bool notExist(const btVector3& planeEquation,const btAlignedObjectArray<btVector3>& planeEquations)
-{
-	int numbrushes = planeEquations.size();
-	for (int i=0;i<numbrushes;i++)
-	{
-		const btVector3& N1 = planeEquations[i];
-		if (planeEquation.dot(N1) > btScalar(0.999))
-		{
-			return false;
-		} 
-	}
-	return true;
-}
-
-void	btGeometryUtil::getPlaneEquationsFromVertices(btAlignedObjectArray<btVector3>& vertices, btAlignedObjectArray<btVector3>& planeEquationsOut )
-{
-		const int numvertices = vertices.size();
-	// brute force:
-	for (int i=0;i<numvertices;i++)
-	{
-		const btVector3& N1 = vertices[i];
-		
-
-		for (int j=i+1;j<numvertices;j++)
-		{
-			const btVector3& N2 = vertices[j];
-				
-			for (int k=j+1;k<numvertices;k++)
-			{
-
-				const btVector3& N3 = vertices[k];
-
-				btVector3 planeEquation,edge0,edge1;
-				edge0 = N2-N1;
-				edge1 = N3-N1;
-				btScalar normalSign = btScalar(1.);
-				for (int ww=0;ww<2;ww++)
-				{
-					planeEquation = normalSign * edge0.cross(edge1);
-					if (planeEquation.length2() > btScalar(0.0001))
-					{
-						planeEquation.normalize();
-						if (notExist(planeEquation,planeEquationsOut))
-						{
-							planeEquation[3] = -planeEquation.dot(N1);
-							
-								//check if inside, and replace supportingVertexOut if needed
-								if (areVerticesBehindPlane(planeEquation,vertices,btScalar(0.01)))
-								{
-									planeEquationsOut.push_back(planeEquation);
-								}
-						}
-					}
-					normalSign = btScalar(-1.);
-				}
-			
-			}
-		}
-	}
-
-}
-
-void	btGeometryUtil::getVerticesFromPlaneEquations(const btAlignedObjectArray<btVector3>& planeEquations , btAlignedObjectArray<btVector3>& verticesOut )
-{
-	const int numbrushes = planeEquations.size();
-	// brute force:
-	for (int i=0;i<numbrushes;i++)
-	{
-		const btVector3& N1 = planeEquations[i];
-		
-
-		for (int j=i+1;j<numbrushes;j++)
-		{
-			const btVector3& N2 = planeEquations[j];
-				
-			for (int k=j+1;k<numbrushes;k++)
-			{
-
-				const btVector3& N3 = planeEquations[k];
-
-				btVector3 n2n3; n2n3 = N2.cross(N3);
-				btVector3 n3n1; n3n1 = N3.cross(N1);
-				btVector3 n1n2; n1n2 = N1.cross(N2);
-				
-				if ( ( n2n3.length2() > btScalar(0.0001) ) &&
-					 ( n3n1.length2() > btScalar(0.0001) ) &&
-					 ( n1n2.length2() > btScalar(0.0001) ) )
-				{
-					//point P out of 3 plane equations:
-
-					//	d1 ( N2 * N3 ) + d2 ( N3 * N1 ) + d3 ( N1 * N2 )  
-					//P =  -------------------------------------------------------------------------  
-					//   N1 . ( N2 * N3 )  
-
-
-					btScalar quotient = (N1.dot(n2n3));
-					if (btFabs(quotient) > btScalar(0.000001))
-					{
-						quotient = btScalar(-1.) / quotient;
-						n2n3 *= N1[3];
-						n3n1 *= N2[3];
-						n1n2 *= N3[3];
-						btVector3 potentialVertex = n2n3;
-						potentialVertex += n3n1;
-						potentialVertex += n1n2;
-						potentialVertex *= quotient;
-
-						//check if inside, and replace supportingVertexOut if needed
-						if (isPointInsidePlanes(planeEquations,potentialVertex,btScalar(0.01)))
-						{
-							verticesOut.push_back(potentialVertex);
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
-- 
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