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A:

You need to either provide a default constructor for b2World, or you need to initialize world in the initializer list:

bc_Game::bc_Game() :world(gravity, sleep)
{
}

This would also require gravity and sleep to be pre-constructed though.

PigBen 2010-10-23 23:53:42

If I do that though I get multiple undefined references to b2World() and ~b2World

Chris 2010-10-24 00:43:35

@Chris -- If you do what? Provide a default constructor? Let me see your code. Both the header and the implementation of b2World.

PigBen 2010-10-24 00:48:50

class bc_Game{ public: bc_Game(b2Vec2 grav, bool sleep); private: bool bv_Running; bool bv_fullscreen; bool bv_firstrun; //Box2d variables float box_timestep; int velocityIter; int posIter; b2Vec2 box_gravity; bool box_sleep; b2World box_world;};

Chris 2010-10-24 01:00:05

bc_Game::bc_Game(b2Vec2 grav, bool sleep) : box_world(grav, sleep){ box_timestep = 1.f/60.f; velocityIter = 10; posIter = 10; box_gravity.Set(0.f, -10.f); box_sleep = true;}

Chris 2010-10-24 01:00:27

I wanted to see the b2World class. And edit it into your question.

PigBen 2010-10-24 01:14:35

Edited in, but b2World isn't my class so...

Chris 2010-10-24 01:39:09

Also I have to go to sleep now, I'll check in the morning. If you need the rest of b2World download Box2D.

Chris 2010-10-24 01:39:28

I'll assume then, that you don't intend to make changes to b2World. What lines are giving you errors?

PigBen 2010-10-24 01:53:11

I have errors relating to the deconstrucor on the first { of the class definition, and I get undefined references to the constructor and destructor on the { and } of bc_Game's ctor.

Chris 2010-10-24 11:53:00

Case closed: I forgot to build and link the static library

Chris 2010-10-24 13:44:03

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