/// Creates a fixture from a shape and attach it to this body.
/// This is a convenience function. Use FixtureDef if you need to set parameters
/// like friction, restitution, user data, or filtering.
/// @param shape the shape to be cloned.
/// @param density the shape density (set to zero for static bodies).
/// @warning This function is locked during callbacks.
public Fixture CreateFixture(Shape shape, float density)
{
Debug.Assert(_world.IsLocked == false);
if (_world.IsLocked == true)
{
return(null);
}
BroadPhase broadPhase = _world._contactManager._broadPhase;
FixtureDef def = new FixtureDef();
def.shape = shape;
def.density = density;
Fixture fixture = new Fixture();
fixture.Create(broadPhase, this, ref _xf, def);
fixture._next = _fixtureList;
_fixtureList = fixture;
++_fixtureCount;
fixture._body = this;
// Let the world know we have a new fixture.
_world._flags |= WorldFlags.NewFixture;
return(fixture);
}
// We need separation create/destroy functions from the ructor/destructor because
// the destructor cannot access the allocator or broad-phase (no destructor arguments allowed by C++).
internal void Create(BroadPhase broadPhase, Body body, ref XForm xf, FixtureDef def)
{
_userData = def.userData;
_friction = def.friction;
_restitution = def.restitution;
_density = def.density;
_body = body;
_next = null;
_filter = def.filter;
_isSensor = def.isSensor;
_shape = def.shape.Clone();
// Create proxy in the broad-phase.
AABB aabb;
_shape.ComputeAABB(out aabb, ref xf);
_proxyId = broadPhase.CreateProxy(ref aabb, this);
}
// We need separation create/destroy functions from the ructor/destructor because
// the destructor cannot access the allocator or broad-phase (no destructor arguments allowed by C++).
internal void Create(BroadPhase broadPhase, Body body, ref XForm xf, FixtureDef def)
{
_userData = def.userData;
_friction = def.friction;
_restitution = def.restitution;
_density = def.density;
_body = body;
_next = null;
_filter = def.filter;
_isSensor = def.isSensor;
_shape = def.shape.Clone();
// Create proxy in the broad-phase.
AABB aabb;
_shape.ComputeAABB(out aabb, ref xf);
_proxyId = broadPhase.CreateProxy(ref aabb, this);
}
/// Creates a fixture from a shape and attach it to this body.
/// This is a convenience function. Use FixtureDef if you need to set parameters
/// like friction, restitution, user data, or filtering.
/// @param shape the shape to be cloned.
/// @param density the shape density (set to zero for static bodies).
/// @warning This function is locked during callbacks.
public Fixture CreateFixture(Shape shape, float density)
{
Debug.Assert(_world.IsLocked == false);
if (_world.IsLocked == true)
{
return null;
}
BroadPhase broadPhase = _world._contactManager._broadPhase;
FixtureDef def = new FixtureDef();
def.shape = shape;
def.density = density;
Fixture fixture = new Fixture();
fixture.Create(broadPhase, this, ref _xf, def);
fixture._next = _fixtureList;
_fixtureList = fixture;
++_fixtureCount;
fixture._body = this;
// Let the world know we have a new fixture.
_world._flags |= WorldFlags.NewFixture;
return fixture;
}