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Avoid crash in btCompoundCompoundCollisionAlgorithm if there is no tree for one of the btCompoundShapes

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Update the revision, to avoid clearing the child cache each frame
This commit is contained in:
erwin.coumans@gmail.com
2013-11-17 20:35:35 +00:00
parent 886650a038
commit 9aad92315b
4 changed files with 16 additions and 9 deletions
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7
src/BulletCollision/CollisionDispatch/btCompoundCompoundCollisionAlgorithm.h
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@@ -17,6 +17,8 @@ subject to the following restrictions:
#ifndef BT_COMPOUND_COMPOUND_COLLISION_ALGORITHM_H
#define BT_COMPOUND_COMPOUND_COLLISION_ALGORITHM_H
#include "btCompoundCollisionAlgorithm.h"
#include "BulletCollision/CollisionDispatch/btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseInterface.h"
@@ -35,15 +37,12 @@ typedef bool (*btShapePairCallback)(const btCollisionShape* pShape0, const btCol
extern btShapePairCallback gCompoundCompoundChildShapePairCallback;
/// btCompoundCompoundCollisionAlgorithm supports collision between two btCompoundCollisionShape shapes
class btCompoundCompoundCollisionAlgorithm : public btActivatingCollisionAlgorithm
class btCompoundCompoundCollisionAlgorithm : public btCompoundCollisionAlgorithm
{
class btHashedSimplePairCache* m_childCollisionAlgorithmCache;
btSimplePairArray m_removePairs;
class btPersistentManifold* m_sharedManifold;
bool m_ownsManifold;
int m_compoundShapeRevision0;//to keep track of changes, so that childAlgorithm array can be updated
int m_compoundShapeRevision1;