1 files changed, 0 insertions, 123 deletions
diff --git a/thirdparty/bullet/BulletCollision/CollisionDispatch/btUnionFind.h b/thirdparty/bullet/BulletCollision/CollisionDispatch/btUnionFind.h
deleted file mode 100644
index d422ef55eb..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionDispatch/btUnionFind.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-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.
-*/
-
-#ifndef BT_UNION_FIND_H
-#define BT_UNION_FIND_H
-
-#include "LinearMath/btAlignedObjectArray.h"
-
-#define USE_PATH_COMPRESSION 1
-
-///see for discussion of static island optimizations by Vroonsh here: http://code.google.com/p/bullet/issues/detail?id=406
-#define STATIC_SIMULATION_ISLAND_OPTIMIZATION 1
-
-struct btElement
-{
-	int m_id;
-	int m_sz;
-};
-
-///UnionFind calculates connected subsets
-// Implements weighted Quick Union with path compression
-// optimization: could use short ints instead of ints (halving memory, would limit the number of rigid bodies to 64k, sounds reasonable)
-class btUnionFind
-{
-private:
-	btAlignedObjectArray<btElement> m_elements;
-
-public:
-	btUnionFind();
-	~btUnionFind();
-
-	//this is a special operation, destroying the content of btUnionFind.
-	//it sorts the elements, based on island id, in order to make it easy to iterate over islands
-	void sortIslands();
-
-	void reset(int N);
-
-	SIMD_FORCE_INLINE int getNumElements() const
-	{
-		return int(m_elements.size());
-	}
-	SIMD_FORCE_INLINE bool isRoot(int x) const
-	{
-		return (x == m_elements[x].m_id);
-	}
-
-	btElement& getElement(int index)
-	{
-		return m_elements[index];
-	}
-	const btElement& getElement(int index) const
-	{
-		return m_elements[index];
-	}
-
-	void allocate(int N);
-	void Free();
-
-	int find(int p, int q)
-	{
-		return (find(p) == find(q));
-	}
-
-	void unite(int p, int q)
-	{
-		int i = find(p), j = find(q);
-		if (i == j)
-			return;
-
-#ifndef USE_PATH_COMPRESSION
-		//weighted quick union, this keeps the 'trees' balanced, and keeps performance of unite O( log(n) )
-		if (m_elements[i].m_sz < m_elements[j].m_sz)
-		{
-			m_elements[i].m_id = j;
-			m_elements[j].m_sz += m_elements[i].m_sz;
-		}
-		else
-		{
-			m_elements[j].m_id = i;
-			m_elements[i].m_sz += m_elements[j].m_sz;
-		}
-#else
-		m_elements[i].m_id = j;
-		m_elements[j].m_sz += m_elements[i].m_sz;
-#endif  //USE_PATH_COMPRESSION
-	}
-
-	int find(int x)
-	{
-		//btAssert(x < m_N);
-		//btAssert(x >= 0);
-
-		while (x != m_elements[x].m_id)
-		{
-			//not really a reason not to use path compression, and it flattens the trees/improves find performance dramatically
-
-#ifdef USE_PATH_COMPRESSION
-			const btElement* elementPtr = &m_elements[m_elements[x].m_id];
-			m_elements[x].m_id = elementPtr->m_id;
-			x = elementPtr->m_id;
-#else  //
-			x = m_elements[x].m_id;
-#endif
-			//btAssert(x < m_N);
-			//btAssert(x >= 0);
-		}
-		return x;
-	}
-};
-
-#endif  //BT_UNION_FIND_H