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, 169 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionShapes/btMultiSphereShape.cpp b/thirdparty/bullet/BulletCollision/CollisionShapes/btMultiSphereShape.cpp
deleted file mode 100644
index c0cc55dfb0..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionShapes/btMultiSphereShape.cpp
+++ /dev/null
@@ -1,169 +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.
-*/
-
-#if defined(_WIN32) || defined(__i386__)
-#define BT_USE_SSE_IN_API
-#endif
-
-#include "btMultiSphereShape.h"
-#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
-#include "LinearMath/btQuaternion.h"
-#include "LinearMath/btSerializer.h"
-
-btMultiSphereShape::btMultiSphereShape(const btVector3* positions, const btScalar* radi, int numSpheres)
-	: btConvexInternalAabbCachingShape()
-{
-	m_shapeType = MULTI_SPHERE_SHAPE_PROXYTYPE;
-	//btScalar startMargin = btScalar(BT_LARGE_FLOAT);
-
-	m_localPositionArray.resize(numSpheres);
-	m_radiArray.resize(numSpheres);
-	for (int i = 0; i < numSpheres; i++)
-	{
-		m_localPositionArray[i] = positions[i];
-		m_radiArray[i] = radi[i];
-	}
-
-	recalcLocalAabb();
-}
-
-#ifndef MIN
-#define MIN(_a, _b) ((_a) < (_b) ? (_a) : (_b))
-#endif
-btVector3 btMultiSphereShape::localGetSupportingVertexWithoutMargin(const btVector3& vec0) const
-{
-	btVector3 supVec(0, 0, 0);
-
-	btScalar maxDot(btScalar(-BT_LARGE_FLOAT));
-
-	btVector3 vec = vec0;
-	btScalar lenSqr = vec.length2();
-	if (lenSqr < (SIMD_EPSILON * SIMD_EPSILON))
-	{
-		vec.setValue(1, 0, 0);
-	}
-	else
-	{
-		btScalar rlen = btScalar(1.) / btSqrt(lenSqr);
-		vec *= rlen;
-	}
-
-	btVector3 vtx;
-	btScalar newDot;
-
-	const btVector3* pos = &m_localPositionArray[0];
-	const btScalar* rad = &m_radiArray[0];
-	int numSpheres = m_localPositionArray.size();
-
-	for (int k = 0; k < numSpheres; k += 128)
-	{
-		btVector3 temp[128];
-		int inner_count = MIN(numSpheres - k, 128);
-		for (long i = 0; i < inner_count; i++)
-		{
-			temp[i] = (*pos) * m_localScaling + vec * m_localScaling * (*rad) - vec * getMargin();
-			pos++;
-			rad++;
-		}
-		long i = vec.maxDot(temp, inner_count, newDot);
-		if (newDot > maxDot)
-		{
-			maxDot = newDot;
-			supVec = temp[i];
-		}
-	}
-
-	return supVec;
-}
-
-void btMultiSphereShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors, btVector3* supportVerticesOut, int numVectors) const
-{
-	for (int j = 0; j < numVectors; j++)
-	{
-		btScalar maxDot(btScalar(-BT_LARGE_FLOAT));
-
-		const btVector3& vec = vectors[j];
-
-		btVector3 vtx;
-		btScalar newDot;
-
-		const btVector3* pos = &m_localPositionArray[0];
-		const btScalar* rad = &m_radiArray[0];
-		int numSpheres = m_localPositionArray.size();
-
-		for (int k = 0; k < numSpheres; k += 128)
-		{
-			btVector3 temp[128];
-			int inner_count = MIN(numSpheres - k, 128);
-			for (long i = 0; i < inner_count; i++)
-			{
-				temp[i] = (*pos) * m_localScaling + vec * m_localScaling * (*rad) - vec * getMargin();
-				pos++;
-				rad++;
-			}
-			long i = vec.maxDot(temp, inner_count, newDot);
-			if (newDot > maxDot)
-			{
-				maxDot = newDot;
-				supportVerticesOut[j] = temp[i];
-			}
-		}
-	}
-}
-
-void btMultiSphereShape::calculateLocalInertia(btScalar mass, btVector3& inertia) const
-{
-	//as an approximation, take the inertia of the box that bounds the spheres
-
-	btVector3 localAabbMin, localAabbMax;
-	getCachedLocalAabb(localAabbMin, localAabbMax);
-	btVector3 halfExtents = (localAabbMax - localAabbMin) * btScalar(0.5);
-
-	btScalar lx = btScalar(2.) * (halfExtents.x());
-	btScalar ly = btScalar(2.) * (halfExtents.y());
-	btScalar lz = btScalar(2.) * (halfExtents.z());
-
-	inertia.setValue(mass / (btScalar(12.0)) * (ly * ly + lz * lz),
-					 mass / (btScalar(12.0)) * (lx * lx + lz * lz),
-					 mass / (btScalar(12.0)) * (lx * lx + ly * ly));
-}
-
-///fills the dataBuffer and returns the struct name (and 0 on failure)
-const char* btMultiSphereShape::serialize(void* dataBuffer, btSerializer* serializer) const
-{
-	btMultiSphereShapeData* shapeData = (btMultiSphereShapeData*)dataBuffer;
-	btConvexInternalShape::serialize(&shapeData->m_convexInternalShapeData, serializer);
-
-	int numElem = m_localPositionArray.size();
-	shapeData->m_localPositionArrayPtr = numElem ? (btPositionAndRadius*)serializer->getUniquePointer((void*)&m_localPositionArray[0]) : 0;
-
-	shapeData->m_localPositionArraySize = numElem;
-	if (numElem)
-	{
-		btChunk* chunk = serializer->allocate(sizeof(btPositionAndRadius), numElem);
-		btPositionAndRadius* memPtr = (btPositionAndRadius*)chunk->m_oldPtr;
-		for (int i = 0; i < numElem; i++, memPtr++)
-		{
-			m_localPositionArray[i].serializeFloat(memPtr->m_pos);
-			memPtr->m_radius = float(m_radiArray[i]);
-		}
-		serializer->finalizeChunk(chunk, "btPositionAndRadius", BT_ARRAY_CODE, (void*)&m_localPositionArray[0]);
-	}
-
-	// Fill padding with zeros to appease msan.
-	memset(shapeData->m_padding, 0, sizeof(shapeData->m_padding));
-
-	return "btMultiSphereShapeData";
-}