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, 104 deletions

diff --git a/thirdparty/bullet/BulletSoftBody/btCGProjection.h b/thirdparty/bullet/BulletSoftBody/btCGProjection.h
deleted file mode 100644
index e05970664c..0000000000
--- a/thirdparty/bullet/BulletSoftBody/btCGProjection.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- Written by Xuchen Han <xuchenhan2015@u.northwestern.edu>
- 
- Bullet Continuous Collision Detection and Physics Library
- Copyright (c) 2019 Google Inc. 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.
- */
-
-#ifndef BT_CG_PROJECTION_H
-#define BT_CG_PROJECTION_H
-
-#include "btSoftBody.h"
-#include "BulletDynamics/Featherstone/btMultiBodyLinkCollider.h"
-#include "BulletDynamics/Featherstone/btMultiBodyConstraint.h"
-
-struct DeformableContactConstraint
-{
-	const btSoftBody::Node* m_node;
-	btAlignedObjectArray<const btSoftBody::RContact*> m_contact;
-	btAlignedObjectArray<btVector3> m_total_normal_dv;
-	btAlignedObjectArray<btVector3> m_total_tangent_dv;
-	btAlignedObjectArray<bool> m_static;
-	btAlignedObjectArray<bool> m_can_be_dynamic;
-
-	DeformableContactConstraint(const btSoftBody::RContact& rcontact) : m_node(rcontact.m_node)
-	{
-		append(rcontact);
-	}
-
-	DeformableContactConstraint() : m_node(NULL)
-	{
-		m_contact.push_back(NULL);
-	}
-
-	void append(const btSoftBody::RContact& rcontact)
-	{
-		m_contact.push_back(&rcontact);
-		m_total_normal_dv.push_back(btVector3(0, 0, 0));
-		m_total_tangent_dv.push_back(btVector3(0, 0, 0));
-		m_static.push_back(false);
-		m_can_be_dynamic.push_back(true);
-	}
-
-	void replace(const btSoftBody::RContact& rcontact)
-	{
-		m_contact.clear();
-		m_total_normal_dv.clear();
-		m_total_tangent_dv.clear();
-		m_static.clear();
-		m_can_be_dynamic.clear();
-		append(rcontact);
-	}
-
-	~DeformableContactConstraint()
-	{
-	}
-};
-
-class btCGProjection
-{
-public:
-	typedef btAlignedObjectArray<btVector3> TVStack;
-	typedef btAlignedObjectArray<btAlignedObjectArray<btVector3> > TVArrayStack;
-	typedef btAlignedObjectArray<btAlignedObjectArray<btScalar> > TArrayStack;
-	btAlignedObjectArray<btSoftBody*>& m_softBodies;
-	const btScalar& m_dt;
-	// map from node indices to node pointers
-	const btAlignedObjectArray<btSoftBody::Node*>* m_nodes;
-
-	btCGProjection(btAlignedObjectArray<btSoftBody*>& softBodies, const btScalar& dt)
-		: m_softBodies(softBodies), m_dt(dt)
-	{
-	}
-
-	virtual ~btCGProjection()
-	{
-	}
-
-	// apply the constraints
-	virtual void project(TVStack& x) = 0;
-
-	virtual void setConstraints() = 0;
-
-	// update the constraints
-	virtual btScalar update() = 0;
-
-	virtual void reinitialize(bool nodeUpdated)
-	{
-	}
-
-	virtual void setIndices(const btAlignedObjectArray<btSoftBody::Node*>* nodes)
-	{
-		m_nodes = nodes;
-	}
-};
-
-#endif /* btCGProjection_h */