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, 166 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionDispatch/btGhostObject.cpp b/thirdparty/bullet/BulletCollision/CollisionDispatch/btGhostObject.cpp
deleted file mode 100644
index 00f16fd0a8..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionDispatch/btGhostObject.cpp
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
-Bullet Continuous Collision Detection and Physics Library
-Copyright (c) 2003-2008 Erwin Coumans  http://bulletphysics.com
-
-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 "btGhostObject.h"
-#include "btCollisionWorld.h"
-#include "BulletCollision/CollisionShapes/btConvexShape.h"
-#include "LinearMath/btAabbUtil2.h"
-
-btGhostObject::btGhostObject()
-{
-	m_internalType = CO_GHOST_OBJECT;
-}
-
-btGhostObject::~btGhostObject()
-{
-	///btGhostObject should have been removed from the world, so no overlapping objects
-	btAssert(!m_overlappingObjects.size());
-}
-
-void btGhostObject::addOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btBroadphaseProxy* thisProxy)
-{
-	btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
-	btAssert(otherObject);
-	///if this linearSearch becomes too slow (too many overlapping objects) we should add a more appropriate data structure
-	int index = m_overlappingObjects.findLinearSearch(otherObject);
-	if (index == m_overlappingObjects.size())
-	{
-		//not found
-		m_overlappingObjects.push_back(otherObject);
-	}
-}
-
-void btGhostObject::removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btDispatcher* dispatcher, btBroadphaseProxy* thisProxy)
-{
-	btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
-	btAssert(otherObject);
-	int index = m_overlappingObjects.findLinearSearch(otherObject);
-	if (index < m_overlappingObjects.size())
-	{
-		m_overlappingObjects[index] = m_overlappingObjects[m_overlappingObjects.size() - 1];
-		m_overlappingObjects.pop_back();
-	}
-}
-
-btPairCachingGhostObject::btPairCachingGhostObject()
-{
-	m_hashPairCache = new (btAlignedAlloc(sizeof(btHashedOverlappingPairCache), 16)) btHashedOverlappingPairCache();
-}
-
-btPairCachingGhostObject::~btPairCachingGhostObject()
-{
-	m_hashPairCache->~btHashedOverlappingPairCache();
-	btAlignedFree(m_hashPairCache);
-}
-
-void btPairCachingGhostObject::addOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btBroadphaseProxy* thisProxy)
-{
-	btBroadphaseProxy* actualThisProxy = thisProxy ? thisProxy : getBroadphaseHandle();
-	btAssert(actualThisProxy);
-
-	btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
-	btAssert(otherObject);
-	int index = m_overlappingObjects.findLinearSearch(otherObject);
-	if (index == m_overlappingObjects.size())
-	{
-		m_overlappingObjects.push_back(otherObject);
-		m_hashPairCache->addOverlappingPair(actualThisProxy, otherProxy);
-	}
-}
-
-void btPairCachingGhostObject::removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btDispatcher* dispatcher, btBroadphaseProxy* thisProxy1)
-{
-	btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
-	btBroadphaseProxy* actualThisProxy = thisProxy1 ? thisProxy1 : getBroadphaseHandle();
-	btAssert(actualThisProxy);
-
-	btAssert(otherObject);
-	int index = m_overlappingObjects.findLinearSearch(otherObject);
-	if (index < m_overlappingObjects.size())
-	{
-		m_overlappingObjects[index] = m_overlappingObjects[m_overlappingObjects.size() - 1];
-		m_overlappingObjects.pop_back();
-		m_hashPairCache->removeOverlappingPair(actualThisProxy, otherProxy, dispatcher);
-	}
-}
-
-void btGhostObject::convexSweepTest(const btConvexShape* castShape, const btTransform& convexFromWorld, const btTransform& convexToWorld, btCollisionWorld::ConvexResultCallback& resultCallback, btScalar allowedCcdPenetration) const
-{
-	btTransform convexFromTrans, convexToTrans;
-	convexFromTrans = convexFromWorld;
-	convexToTrans = convexToWorld;
-	btVector3 castShapeAabbMin, castShapeAabbMax;
-	/* Compute AABB that encompasses angular movement */
-	{
-		btVector3 linVel, angVel;
-		btTransformUtil::calculateVelocity(convexFromTrans, convexToTrans, 1.0, linVel, angVel);
-		btTransform R;
-		R.setIdentity();
-		R.setRotation(convexFromTrans.getRotation());
-		castShape->calculateTemporalAabb(R, linVel, angVel, 1.0, castShapeAabbMin, castShapeAabbMax);
-	}
-
-	/// go over all objects, and if the ray intersects their aabb + cast shape aabb,
-	// do a ray-shape query using convexCaster (CCD)
-	int i;
-	for (i = 0; i < m_overlappingObjects.size(); i++)
-	{
-		btCollisionObject* collisionObject = m_overlappingObjects[i];
-		//only perform raycast if filterMask matches
-		if (resultCallback.needsCollision(collisionObject->getBroadphaseHandle()))
-		{
-			//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
-			btVector3 collisionObjectAabbMin, collisionObjectAabbMax;
-			collisionObject->getCollisionShape()->getAabb(collisionObject->getWorldTransform(), collisionObjectAabbMin, collisionObjectAabbMax);
-			AabbExpand(collisionObjectAabbMin, collisionObjectAabbMax, castShapeAabbMin, castShapeAabbMax);
-			btScalar hitLambda = btScalar(1.);  //could use resultCallback.m_closestHitFraction, but needs testing
-			btVector3 hitNormal;
-			if (btRayAabb(convexFromWorld.getOrigin(), convexToWorld.getOrigin(), collisionObjectAabbMin, collisionObjectAabbMax, hitLambda, hitNormal))
-			{
-				btCollisionWorld::objectQuerySingle(castShape, convexFromTrans, convexToTrans,
-													collisionObject,
-													collisionObject->getCollisionShape(),
-													collisionObject->getWorldTransform(),
-													resultCallback,
-													allowedCcdPenetration);
-			}
-		}
-	}
-}
-
-void btGhostObject::rayTest(const btVector3& rayFromWorld, const btVector3& rayToWorld, btCollisionWorld::RayResultCallback& resultCallback) const
-{
-	btTransform rayFromTrans;
-	rayFromTrans.setIdentity();
-	rayFromTrans.setOrigin(rayFromWorld);
-	btTransform rayToTrans;
-	rayToTrans.setIdentity();
-	rayToTrans.setOrigin(rayToWorld);
-
-	int i;
-	for (i = 0; i < m_overlappingObjects.size(); i++)
-	{
-		btCollisionObject* collisionObject = m_overlappingObjects[i];
-		//only perform raycast if filterMask matches
-		if (resultCallback.needsCollision(collisionObject->getBroadphaseHandle()))
-		{
-			btCollisionWorld::rayTestSingle(rayFromTrans, rayToTrans,
-											collisionObject,
-											collisionObject->getCollisionShape(),
-											collisionObject->getWorldTransform(),
-											resultCallback);
-		}
-	}
-}