/// <summary>
/// Removes all objects from the world and removes all memory cached objects.
/// </summary>
public void Clear()
{
// remove bodies from collision system
for (int index = 0, length = rigidBodies.Count; index < length; index++)
{
RigidBody body = rigidBodies[index];
CollisionSystem.RemoveEntity(body);
if (body.island != null)
{
body.island.ClearLists();
body.island = null;
}
body.connections.Clear();
body.arbiters.Clear();
body.constraints.Clear();
events.RaiseRemovedRigidBody(body);
}
for (int index = 0, length = softbodies.Count; index < length; index++)
{
SoftBody body = softbodies[index];
CollisionSystem.RemoveEntity(body);
}
// remove bodies from the world
rigidBodies.Clear();
// remove constraints
for (int index = 0, length = constraints.Count; index < length; index++)
{
Constraint constraint = constraints[index];
events.RaiseRemovedConstraint(constraint);
}
constraints.Clear();
softbodies.Clear();
// remove all islands
islands.RemoveAll();
// delete the arbiters
arbiterMap.Clear();
arbiterTriggerMap.Clear();
ResetResourcePools();
}
private bool RemoveBody(RigidBody body, bool removeMassPoints)
{
// Its very important to clean up, after removing a body
if (!removeMassPoints && body.IsParticle)
{
return(false);
}
// remove the body from the world list
if (!rigidBodies.Remove(body))
{
return(false);
}
// Remove all connected constraints and arbiters
for (int index = 0, length = body.arbiters.Count; index < length; index++)
{
Arbiter arbiter = body.arbiters[index];
arbiterMap.Remove(arbiter);
events.RaiseBodiesEndCollide(arbiter.body1, arbiter.body2);
cacheOverPairContact.SetBodies(arbiter.body1, arbiter.body2);
initialCollisions.Remove(cacheOverPairContact);
}
for (int index = 0, length = body.arbitersTrigger.Count; index < length; index++)
{
Arbiter arbiter = body.arbitersTrigger[index];
arbiterTriggerMap.Remove(arbiter);
if (arbiter.body1.isColliderOnly)
{
events.RaiseTriggerEndCollide(arbiter.body1, arbiter.body2);
}
else
{
events.RaiseTriggerEndCollide(arbiter.body2, arbiter.body1);
}
cacheOverPairContact.SetBodies(arbiter.body1, arbiter.body2);
initialTriggers.Remove(cacheOverPairContact);
}
for (int index = 0, length = body.constraints.Count; index < length; index++)
{
Constraint constraint = body.constraints[index];
constraints.Remove(constraint);
events.RaiseRemovedConstraint(constraint);
}
// remove the body from the collision system
CollisionSystem.RemoveEntity(body);
// remove the body from the island manager
islands.RemoveBody(body);
events.RaiseRemovedRigidBody(body);
return(true);
}