Remove unused Bullet module and thirdparty code

It has been disabled in `master` since one year (#45852) and our plan
is for Bullet, and possibly other thirdparty physics engines, to be
implemented via GDExtension so that they can be selected by the users
who need them.

1 files changed, 0 insertions, 167 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMesh.cpp b/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMesh.cpp
deleted file mode 100644
index abd8c22786..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMesh.cpp
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
-Bullet Continuous Collision Detection and Physics Library
-Copyright (c) 2003-2009 Erwin Coumans  http://bulletphysics.org
-
-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 "btTriangleMesh.h"
-
-btTriangleMesh::btTriangleMesh(bool use32bitIndices, bool use4componentVertices)
-	: m_use32bitIndices(use32bitIndices),
-	  m_use4componentVertices(use4componentVertices),
-	  m_weldingThreshold(0.0)
-{
-	btIndexedMesh meshIndex;
-	meshIndex.m_numTriangles = 0;
-	meshIndex.m_numVertices = 0;
-	meshIndex.m_indexType = PHY_INTEGER;
-	meshIndex.m_triangleIndexBase = 0;
-	meshIndex.m_triangleIndexStride = 3 * sizeof(int);
-	meshIndex.m_vertexBase = 0;
-	meshIndex.m_vertexStride = sizeof(btVector3);
-	m_indexedMeshes.push_back(meshIndex);
-
-	if (m_use32bitIndices)
-	{
-		m_indexedMeshes[0].m_numTriangles = m_32bitIndices.size() / 3;
-		m_indexedMeshes[0].m_triangleIndexBase = 0;
-		m_indexedMeshes[0].m_indexType = PHY_INTEGER;
-		m_indexedMeshes[0].m_triangleIndexStride = 3 * sizeof(int);
-	}
-	else
-	{
-		m_indexedMeshes[0].m_numTriangles = m_16bitIndices.size() / 3;
-		m_indexedMeshes[0].m_triangleIndexBase = 0;
-		m_indexedMeshes[0].m_indexType = PHY_SHORT;
-		m_indexedMeshes[0].m_triangleIndexStride = 3 * sizeof(short int);
-	}
-
-	if (m_use4componentVertices)
-	{
-		m_indexedMeshes[0].m_numVertices = m_4componentVertices.size();
-		m_indexedMeshes[0].m_vertexBase = 0;
-		m_indexedMeshes[0].m_vertexStride = sizeof(btVector3);
-	}
-	else
-	{
-		m_indexedMeshes[0].m_numVertices = m_3componentVertices.size() / 3;
-		m_indexedMeshes[0].m_vertexBase = 0;
-		m_indexedMeshes[0].m_vertexStride = 3 * sizeof(btScalar);
-	}
-}
-
-void btTriangleMesh::addIndex(int index)
-{
-	if (m_use32bitIndices)
-	{
-		m_32bitIndices.push_back(index);
-		m_indexedMeshes[0].m_triangleIndexBase = (unsigned char*)&m_32bitIndices[0];
-	}
-	else
-	{
-		m_16bitIndices.push_back(index);
-		m_indexedMeshes[0].m_triangleIndexBase = (unsigned char*)&m_16bitIndices[0];
-	}
-}
-
-void btTriangleMesh::addTriangleIndices(int index1, int index2, int index3)
-{
-	m_indexedMeshes[0].m_numTriangles++;
-	addIndex(index1);
-	addIndex(index2);
-	addIndex(index3);
-}
-
-int btTriangleMesh::findOrAddVertex(const btVector3& vertex, bool removeDuplicateVertices)
-{
-	//return index of new/existing vertex
-	///@todo: could use acceleration structure for this
-	if (m_use4componentVertices)
-	{
-		if (removeDuplicateVertices)
-		{
-			for (int i = 0; i < m_4componentVertices.size(); i++)
-			{
-				if ((m_4componentVertices[i] - vertex).length2() <= m_weldingThreshold)
-				{
-					return i;
-				}
-			}
-		}
-		m_indexedMeshes[0].m_numVertices++;
-		m_4componentVertices.push_back(vertex);
-		m_indexedMeshes[0].m_vertexBase = (unsigned char*)&m_4componentVertices[0];
-
-		return m_4componentVertices.size() - 1;
-	}
-	else
-	{
-		if (removeDuplicateVertices)
-		{
-			for (int i = 0; i < m_3componentVertices.size(); i += 3)
-			{
-				btVector3 vtx(m_3componentVertices[i], m_3componentVertices[i + 1], m_3componentVertices[i + 2]);
-				if ((vtx - vertex).length2() <= m_weldingThreshold)
-				{
-					return i / 3;
-				}
-			}
-		}
-		m_3componentVertices.push_back(vertex.getX());
-		m_3componentVertices.push_back(vertex.getY());
-		m_3componentVertices.push_back(vertex.getZ());
-		m_indexedMeshes[0].m_numVertices++;
-		m_indexedMeshes[0].m_vertexBase = (unsigned char*)&m_3componentVertices[0];
-		return (m_3componentVertices.size() / 3) - 1;
-	}
-}
-
-void btTriangleMesh::addTriangle(const btVector3& vertex0, const btVector3& vertex1, const btVector3& vertex2, bool removeDuplicateVertices)
-{
-	m_indexedMeshes[0].m_numTriangles++;
-	addIndex(findOrAddVertex(vertex0, removeDuplicateVertices));
-	addIndex(findOrAddVertex(vertex1, removeDuplicateVertices));
-	addIndex(findOrAddVertex(vertex2, removeDuplicateVertices));
-}
-
-int btTriangleMesh::getNumTriangles() const
-{
-	if (m_use32bitIndices)
-	{
-		return m_32bitIndices.size() / 3;
-	}
-	return m_16bitIndices.size() / 3;
-}
-
-void btTriangleMesh::preallocateVertices(int numverts)
-{
-	if (m_use4componentVertices)
-	{
-		m_4componentVertices.reserve(numverts);
-	}
-	else
-	{
-		m_3componentVertices.reserve(numverts);
-	}
-}
-
-void btTriangleMesh::preallocateIndices(int numindices)
-{
-	if (m_use32bitIndices)
-	{
-		m_32bitIndices.reserve(numindices);
-	}
-	else
-	{
-		m_16bitIndices.reserve(numindices);
-	}
-}