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, 179 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMeshShape.cpp b/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMeshShape.cpp
deleted file mode 100644
index aec239063c..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionShapes/btTriangleMeshShape.cpp
+++ /dev/null
@@ -1,179 +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 "btTriangleMeshShape.h"
-#include "LinearMath/btVector3.h"
-#include "LinearMath/btQuaternion.h"
-#include "btStridingMeshInterface.h"
-#include "LinearMath/btAabbUtil2.h"
-#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
-
-btTriangleMeshShape::btTriangleMeshShape(btStridingMeshInterface* meshInterface)
-	: btConcaveShape(), m_meshInterface(meshInterface)
-{
-	m_shapeType = TRIANGLE_MESH_SHAPE_PROXYTYPE;
-	if (meshInterface->hasPremadeAabb())
-	{
-		meshInterface->getPremadeAabb(&m_localAabbMin, &m_localAabbMax);
-	}
-	else
-	{
-		recalcLocalAabb();
-	}
-}
-
-btTriangleMeshShape::~btTriangleMeshShape()
-{
-}
-
-void btTriangleMeshShape::getAabb(const btTransform& trans, btVector3& aabbMin, btVector3& aabbMax) const
-{
-	btVector3 localHalfExtents = btScalar(0.5) * (m_localAabbMax - m_localAabbMin);
-	localHalfExtents += btVector3(getMargin(), getMargin(), getMargin());
-	btVector3 localCenter = btScalar(0.5) * (m_localAabbMax + m_localAabbMin);
-
-	btMatrix3x3 abs_b = trans.getBasis().absolute();
-
-	btVector3 center = trans(localCenter);
-
-	btVector3 extent = localHalfExtents.dot3(abs_b[0], abs_b[1], abs_b[2]);
-	aabbMin = center - extent;
-	aabbMax = center + extent;
-}
-
-void btTriangleMeshShape::recalcLocalAabb()
-{
-	for (int i = 0; i < 3; i++)
-	{
-		btVector3 vec(btScalar(0.), btScalar(0.), btScalar(0.));
-		vec[i] = btScalar(1.);
-		btVector3 tmp = localGetSupportingVertex(vec);
-		m_localAabbMax[i] = tmp[i] + m_collisionMargin;
-		vec[i] = btScalar(-1.);
-		tmp = localGetSupportingVertex(vec);
-		m_localAabbMin[i] = tmp[i] - m_collisionMargin;
-	}
-}
-
-class SupportVertexCallback : public btTriangleCallback
-{
-	btVector3 m_supportVertexLocal;
-
-public:
-	btTransform m_worldTrans;
-	btScalar m_maxDot;
-	btVector3 m_supportVecLocal;
-
-	SupportVertexCallback(const btVector3& supportVecWorld, const btTransform& trans)
-		: m_supportVertexLocal(btScalar(0.), btScalar(0.), btScalar(0.)), m_worldTrans(trans), m_maxDot(btScalar(-BT_LARGE_FLOAT))
-
-	{
-		m_supportVecLocal = supportVecWorld * m_worldTrans.getBasis();
-	}
-
-	virtual void processTriangle(btVector3* triangle, int partId, int triangleIndex)
-	{
-		(void)partId;
-		(void)triangleIndex;
-		for (int i = 0; i < 3; i++)
-		{
-			btScalar dot = m_supportVecLocal.dot(triangle[i]);
-			if (dot > m_maxDot)
-			{
-				m_maxDot = dot;
-				m_supportVertexLocal = triangle[i];
-			}
-		}
-	}
-
-	btVector3 GetSupportVertexWorldSpace()
-	{
-		return m_worldTrans(m_supportVertexLocal);
-	}
-
-	btVector3 GetSupportVertexLocal()
-	{
-		return m_supportVertexLocal;
-	}
-};
-
-void btTriangleMeshShape::setLocalScaling(const btVector3& scaling)
-{
-	m_meshInterface->setScaling(scaling);
-	recalcLocalAabb();
-}
-
-const btVector3& btTriangleMeshShape::getLocalScaling() const
-{
-	return m_meshInterface->getScaling();
-}
-
-//#define DEBUG_TRIANGLE_MESH
-
-void btTriangleMeshShape::processAllTriangles(btTriangleCallback* callback, const btVector3& aabbMin, const btVector3& aabbMax) const
-{
-	struct FilteredCallback : public btInternalTriangleIndexCallback
-	{
-		btTriangleCallback* m_callback;
-		btVector3 m_aabbMin;
-		btVector3 m_aabbMax;
-
-		FilteredCallback(btTriangleCallback* callback, const btVector3& aabbMin, const btVector3& aabbMax)
-			: m_callback(callback),
-			  m_aabbMin(aabbMin),
-			  m_aabbMax(aabbMax)
-		{
-		}
-
-		virtual void internalProcessTriangleIndex(btVector3* triangle, int partId, int triangleIndex)
-		{
-			if (TestTriangleAgainstAabb2(&triangle[0], m_aabbMin, m_aabbMax))
-			{
-				//check aabb in triangle-space, before doing this
-				m_callback->processTriangle(triangle, partId, triangleIndex);
-			}
-		}
-	};
-
-	FilteredCallback filterCallback(callback, aabbMin, aabbMax);
-
-	m_meshInterface->InternalProcessAllTriangles(&filterCallback, aabbMin, aabbMax);
-}
-
-void btTriangleMeshShape::calculateLocalInertia(btScalar mass, btVector3& inertia) const
-{
-	(void)mass;
-	//moving concave objects not supported
-	btAssert(0);
-	inertia.setValue(btScalar(0.), btScalar(0.), btScalar(0.));
-}
-
-btVector3 btTriangleMeshShape::localGetSupportingVertex(const btVector3& vec) const
-{
-	btVector3 supportVertex;
-
-	btTransform ident;
-	ident.setIdentity();
-
-	SupportVertexCallback supportCallback(vec, ident);
-
-	btVector3 aabbMax(btScalar(BT_LARGE_FLOAT), btScalar(BT_LARGE_FLOAT), btScalar(BT_LARGE_FLOAT));
-
-	processAllTriangles(&supportCallback, -aabbMax, aabbMax);
-
-	supportVertex = supportCallback.GetSupportVertexLocal();
-
-	return supportVertex;
-}