Bullet physics crashing because of invalid reference?

Question

I'm making a game with bullet physics where I have a Platform class, which contains a btBoxShape, btDefaultMotionState and a btRigidBody as members. When exiting my game it crashes. I store the Platform objects in an std::vector, and I think this is the problem. When I push back more Platforms, the vector resizes and moves in memory. This means that whatever pointer to the shape and motionstate that the rigid body has is invalidated. How should I solve this?

score 2 · Accepted Answer · answered Aug 17 '13 at 15:10

2

A std:deque will not invalidate the references.

answered Aug 17 '13 at 15:10

score 0 · Answer 2 · answered Aug 17 '13 at 14:23

0

There are a couple of options I can think of.

std::array/std::vector with a fixed size(reserve()), if possible

std::vector<Platform*> You should probably use smart pointers here, but basically allocate yourself and store just pointers in the vector.

answered Aug 17 '13 at 14:23

Karthik T

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I'm not the one storing pointers, Bullet does it. Its objects need pointers to related objects. – Caroline Bengtsson Aug 17 '13 at 14:24
@CarolineBengtsson Oh I see – Karthik T Aug 17 '13 at 14:25
@CarolineBengtsson Does my new answer help any better? – Karthik T Aug 17 '13 at 14:28

Bullet physics crashing because of invalid reference?

2 Answers2