public void Clone(IWorld iWorld, bool doChecksum)
{
Physics2D.World world = (Physics2D.World)iWorld;
Reset();
//whitebai 2017.5.9
//函数在动态库内，直接就干掉了，应该没啥用
if (doChecksum)
{
// checksum = ChecksumExtractor.GetEncodedChecksum();
}
clonedPhysics.Clear();
for (index = 0, length = world.BodyList.Count; index < length; index++)
{
Physics2D.Body b = world.BodyList[index];
BodyClone2D cloneB = poolRigidBodyClone.GetNew();
cloneB.Clone(b);
clonedPhysics.Add(b.BodyId, cloneB);
}
contactsClone.Clear();
for (index = 0, length = world.ContactList.Count; index < length; index++)
{
Physics2D.Contact c = world.ContactList[index];
ContactClone2D cClone = poolContactClone.GetNew();
cClone.Clone(c);
contactsClone.Add(cClone);
}
islandClone.Clone(world.Island);
toiClone.Clone(world._input);
dynamicTreeClone.Clone((Physics2D.DynamicTreeBroadPhase)world.ContactManager.BroadPhase);
this._worldHasNewFixture = world._worldHasNewFixture;
bodyCounter = Physics2D.Body._bodyIdCounter;
fixtureCounter = Physics2D.Fixture._fixtureIdCounter;
}
public void Reset()
{
var clonedPhysicsEnum = clonedPhysics.GetEnumerator();
while (clonedPhysicsEnum.MoveNext())
{
BodyClone2D cl = clonedPhysicsEnum.Current.Value;
cl.Reset();
poolRigidBodyClone.GiveBack(cl);
}
for (index = 0, length = contactsClone.Count; index < length; index++)
{
ContactClone2D cl = contactsClone[index];
poolContactClone.GiveBack(cl);
}
}
public void Restore(IWorld iWorld)
{
Physics2D.World world = (Physics2D.World)iWorld;
bodiesToRemove.Clear();
for (index = 0, length = world.BodyList.Count; index < length; index++)
{
Physics2D.Body rb = world.BodyList[index];
if (!clonedPhysics.ContainsKey(rb.BodyId))
{
bodiesToRemove.Add(rb);
}
}
for (index = 0, length = bodiesToRemove.Count; index < length; index++)
{
Physics2D.Body rb = bodiesToRemove[index];
world.RemoveBody(rb);
}
world.ProcessRemovedBodies();
for (index = 0, length = world.BodyList.Count; index < length; index++)
{
Physics2D.Body rb = world.BodyList[index];
if (clonedPhysics.ContainsKey(rb.BodyId))
{
BodyClone2D rbClone = clonedPhysics[rb.BodyId];
rbClone.Restore(rb);
}
}
for (index = 0, length = world.ContactList.Count; index < length; index++)
{
Physics2D.Contact c = world.ContactList[index];
world._contactPool.Enqueue(c);
}
world.ContactList.Clear();
contactDic.Clear();
for (index = 0, length = contactsClone.Count; index < length; index++)
{
ContactClone2D cClone = contactsClone[index];
Physics2D.Contact c = null;
if (world._contactPool.Count > 0)
{
c = world._contactPool.Dequeue();
}
else
{
c = new Physics2D.Contact();
}
cClone.Restore(c);
contactDic.Add(c.Key, c);
world.ContactList.Add(c);
}
contactEdgeDic.Clear();
for (index = 0, length = contactsClone.Count; index < length; index++)
{
ContactClone2D cClone = contactsClone[index];
contactDic[cClone.Key]._nodeA = cClone._nodeA.Restore(false, contactDic, contactEdgeDic);
contactDic[cClone.Key]._nodeB = cClone._nodeB.Restore(false, contactDic, contactEdgeDic);
}
for (index = 0, length = contactsClone.Count; index < length; index++)
{
ContactClone2D cClone = contactsClone[index];
contactDic[cClone.Key]._nodeA = cClone._nodeA.Restore(true, contactDic, contactEdgeDic);
contactDic[cClone.Key]._nodeB = cClone._nodeB.Restore(true, contactDic, contactEdgeDic);
}
for (index = 0, length = world.BodyList.Count; index < length; index++)
{
Physics2D.Body rb = world.BodyList[index];
if (clonedPhysics.ContainsKey(rb.BodyId))
{
BodyClone2D rbClone = clonedPhysics[rb.BodyId];
if (rbClone.contactEdgeClone != null)
{
rbClone.contactEdgeClone.Restore(false, contactDic, contactEdgeDic);
}
else
{
rb.ContactList = null;
}
}
}
for (index = 0, length = world.BodyList.Count; index < length; index++)
{
Physics2D.Body rb = world.BodyList[index];
if (clonedPhysics.ContainsKey(rb.BodyId))
{
BodyClone2D rbClone = clonedPhysics[rb.BodyId];
if (rbClone.contactEdgeClone != null)
{
rb.ContactList = rbClone.contactEdgeClone.Restore(true, contactDic, contactEdgeDic);
}
}
}
islandClone.Restore(world.Island, contactDic);
toiClone.Restore(world._input);
TreeNode <FixtureProxy>[] treeNodes = ((DynamicTreeBroadPhase)world.ContactManager.BroadPhase)._tree._nodes;
for (index = 0, length = treeNodes.Length; index < length; index++)
{
TreeNode <FixtureProxy> tn = treeNodes[index];
poolTreeFixtureProxy.GiveBack(tn);
}
dynamicTreeClone.Restore((DynamicTreeBroadPhase)world.ContactManager.BroadPhase);
world._worldHasNewFixture = this._worldHasNewFixture;
Body._bodyIdCounter = bodyCounter;
Fixture._fixtureIdCounter = fixtureCounter;
}