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, 260 deletions

diff --git a/thirdparty/bullet/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp b/thirdparty/bullet/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp
deleted file mode 100644
index 8103390fb1..0000000000
--- a/thirdparty/bullet/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp
+++ /dev/null
@@ -1,260 +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.
-*/
-
-#include "btSimpleDynamicsWorld.h"
-#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h"
-#include "BulletCollision/BroadphaseCollision/btSimpleBroadphase.h"
-#include "BulletCollision/CollisionShapes/btCollisionShape.h"
-#include "BulletDynamics/Dynamics/btRigidBody.h"
-#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h"
-#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.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 btBulletDynamicsProbe();
-	void btBulletDynamicsProbe() {}
-}
-
-btSimpleDynamicsWorld::btSimpleDynamicsWorld(btDispatcher* dispatcher, btBroadphaseInterface* pairCache, btConstraintSolver* constraintSolver, btCollisionConfiguration* collisionConfiguration)
-	: btDynamicsWorld(dispatcher, pairCache, collisionConfiguration),
-	  m_constraintSolver(constraintSolver),
-	  m_ownsConstraintSolver(false),
-	  m_gravity(0, 0, -10)
-{
-}
-
-btSimpleDynamicsWorld::~btSimpleDynamicsWorld()
-{
-	if (m_ownsConstraintSolver)
-		btAlignedFree(m_constraintSolver);
-}
-
-int btSimpleDynamicsWorld::stepSimulation(btScalar timeStep, int maxSubSteps, btScalar fixedTimeStep)
-{
-	(void)fixedTimeStep;
-	(void)maxSubSteps;
-
-	///apply gravity, predict motion
-	predictUnconstraintMotion(timeStep);
-
-	btDispatcherInfo& dispatchInfo = getDispatchInfo();
-	dispatchInfo.m_timeStep = timeStep;
-	dispatchInfo.m_stepCount = 0;
-	dispatchInfo.m_debugDraw = getDebugDrawer();
-
-	///perform collision detection
-	performDiscreteCollisionDetection();
-
-	///solve contact constraints
-	int numManifolds = m_dispatcher1->getNumManifolds();
-	if (numManifolds)
-	{
-		btPersistentManifold** manifoldPtr = ((btCollisionDispatcher*)m_dispatcher1)->getInternalManifoldPointer();
-
-		btContactSolverInfo infoGlobal;
-		infoGlobal.m_timeStep = timeStep;
-		m_constraintSolver->prepareSolve(0, numManifolds);
-		m_constraintSolver->solveGroup(&getCollisionObjectArray()[0], getNumCollisionObjects(), manifoldPtr, numManifolds, 0, 0, infoGlobal, m_debugDrawer, m_dispatcher1);
-		m_constraintSolver->allSolved(infoGlobal, m_debugDrawer);
-	}
-
-	///integrate transforms
-	integrateTransforms(timeStep);
-
-	updateAabbs();
-
-	synchronizeMotionStates();
-
-	clearForces();
-
-	return 1;
-}
-
-void btSimpleDynamicsWorld::clearForces()
-{
-	///@todo: iterate over awake simulation islands!
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body)
-		{
-			body->clearForces();
-		}
-	}
-}
-
-void btSimpleDynamicsWorld::setGravity(const btVector3& gravity)
-{
-	m_gravity = gravity;
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body)
-		{
-			body->setGravity(gravity);
-		}
-	}
-}
-
-btVector3 btSimpleDynamicsWorld::getGravity() const
-{
-	return m_gravity;
-}
-
-void btSimpleDynamicsWorld::removeRigidBody(btRigidBody* body)
-{
-	btCollisionWorld::removeCollisionObject(body);
-}
-
-void btSimpleDynamicsWorld::removeCollisionObject(btCollisionObject* collisionObject)
-{
-	btRigidBody* body = btRigidBody::upcast(collisionObject);
-	if (body)
-		removeRigidBody(body);
-	else
-		btCollisionWorld::removeCollisionObject(collisionObject);
-}
-
-void btSimpleDynamicsWorld::addRigidBody(btRigidBody* body)
-{
-	body->setGravity(m_gravity);
-
-	if (body->getCollisionShape())
-	{
-		addCollisionObject(body);
-	}
-}
-
-void btSimpleDynamicsWorld::addRigidBody(btRigidBody* body, int group, int mask)
-{
-	body->setGravity(m_gravity);
-
-	if (body->getCollisionShape())
-	{
-		addCollisionObject(body, group, mask);
-	}
-}
-
-void btSimpleDynamicsWorld::debugDrawWorld()
-{
-}
-
-void btSimpleDynamicsWorld::addAction(btActionInterface* action)
-{
-}
-
-void btSimpleDynamicsWorld::removeAction(btActionInterface* action)
-{
-}
-
-void btSimpleDynamicsWorld::updateAabbs()
-{
-	btTransform predictedTrans;
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body)
-		{
-			if (body->isActive() && (!body->isStaticObject()))
-			{
-				btVector3 minAabb, maxAabb;
-				colObj->getCollisionShape()->getAabb(colObj->getWorldTransform(), minAabb, maxAabb);
-				btBroadphaseInterface* bp = getBroadphase();
-				bp->setAabb(body->getBroadphaseHandle(), minAabb, maxAabb, m_dispatcher1);
-			}
-		}
-	}
-}
-
-void btSimpleDynamicsWorld::integrateTransforms(btScalar timeStep)
-{
-	btTransform predictedTrans;
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body)
-		{
-			if (body->isActive() && (!body->isStaticObject()))
-			{
-				body->predictIntegratedTransform(timeStep, predictedTrans);
-				body->proceedToTransform(predictedTrans);
-			}
-		}
-	}
-}
-
-void btSimpleDynamicsWorld::predictUnconstraintMotion(btScalar timeStep)
-{
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body)
-		{
-			if (!body->isStaticObject())
-			{
-				if (body->isActive())
-				{
-					body->applyGravity();
-					body->integrateVelocities(timeStep);
-					body->applyDamping(timeStep);
-					body->predictIntegratedTransform(timeStep, body->getInterpolationWorldTransform());
-				}
-			}
-		}
-	}
-}
-
-void btSimpleDynamicsWorld::synchronizeMotionStates()
-{
-	///@todo: iterate over awake simulation islands!
-	for (int i = 0; i < m_collisionObjects.size(); i++)
-	{
-		btCollisionObject* colObj = m_collisionObjects[i];
-		btRigidBody* body = btRigidBody::upcast(colObj);
-		if (body && body->getMotionState())
-		{
-			if (body->getActivationState() != ISLAND_SLEEPING)
-			{
-				body->getMotionState()->setWorldTransform(body->getWorldTransform());
-			}
-		}
-	}
-}
-
-void btSimpleDynamicsWorld::setConstraintSolver(btConstraintSolver* solver)
-{
-	if (m_ownsConstraintSolver)
-	{
-		btAlignedFree(m_constraintSolver);
-	}
-	m_ownsConstraintSolver = false;
-	m_constraintSolver = solver;
-}
-
-btConstraintSolver* btSimpleDynamicsWorld::getConstraintSolver()
-{
-	return m_constraintSolver;
-}