ChipmunkSpace.h

@interface ChipmunkSpace : NSObject {
@private
  cpSpace _space;
  ChipmunkBody *_staticBody;
  
  NSMutableSet *_children;
  NSMutableArray *_handlers;
  
  // TODO should probably add a weak data reference like the other objects have
}

@property int iterations;

@property int elasticIterations;

@property cpVect gravity;

@property cpFloat damping;

@property cpFloat idleSpeedThreshold;

@property cpFloat sleepTimeThreshold;

@property (readonly) cpSpace *space;

@property (readonly) ChipmunkBody *staticBody;

#define CHIPMUNK_ARBITER_GET_SHAPES(arb, a, b) ChipmunkShape *a, *b; { \
  cpShape *shapeA, *shapeB; \
  cpArbiterGetShapes(arb, &shapeA, &shapeB); \
  a = shapeA->data; b = shapeB->data; \
}

- (void)setDefaultCollisionHandler:(id)target
  begin:(SEL)begin
  preSolve:(SEL)preSolve
  postSolve:(SEL)postSolve
  separate:(SEL)separate;

- (void)addCollisionHandler:(id)target
  typeA:(id)a typeB:(id)b
  begin:(SEL)begin
  preSolve:(SEL)preSolve
  postSolve:(SEL)postSolve
  separate:(SEL)separate;


// TODO these might be a really bad idea as they will not call subclass methods.
// The following two methods use the [shape data] object as the collision handler.
// In order to cache the method lookups, it needs to know the class of the object.
// This means that [shape data] objects _must_ be a direct instance of klass and never a subclass.
// See OneWay.m for an example.

- (void)addShapeAHandler:(Class)klass
  typeA:(id)a typeB:(id)b
  begin:(SEL)begin
  preSolve:(SEL)preSolve
  postSolve:(SEL)postSolve
  separate:(SEL)separate
 __attribute__((deprecated));

- (void)addShapeBHandler:(Class)klass
  typeA:(id)a typeB:(id)b
  begin:(SEL)begin
  preSolve:(SEL)preSolve
  postSolve:(SEL)postSolve
  separate:(SEL)separate
 __attribute__((deprecated));

- (void)removeCollisionHandlerForTypeA:(id)a andB:(id)b;

- (id)add:(NSObject<ChipmunkObject> *)obj;

- (void)addBaseObjects:(id <NSFastEnumeration>)objects;

- (id)remove:(NSObject<ChipmunkObject> *)obj;

- (void)removeBaseObjects:(id <NSFastEnumeration>)objects;

// Deprecated due to a bug in the implementation that cannot be fixed without breaking backwards compatibility.
// Use [ChipmunkSpace addPostStepCallback:selector:key:] instead.
- (void)addPostStepCallback:(id)target selector:(SEL)selector context:(id)object __attribute__((deprecated));

- (void)addPostStepCallback:(id)target selector:(SEL)selector key:(id)key;

- (void)addPostStepRemoval:(id <ChipmunkObject>)obj;

- (NSArray *)pointQueryAll:(cpVect)point layers:(cpLayers)layers group:(id)group;

// TODO?
//- (void)pointQuery:(cpVect)point layers:(cpLayers)layers group:(id)group target:(id)target selector:(SEL)selector;

- (ChipmunkShape *)pointQueryFirst:(cpVect)point layers:(cpLayers)layers group:(id)group;

- (NSArray *)segmentQueryAllFrom:(cpVect)start to:(cpVect)end layers:(cpLayers)layers group:(id)group;

// TODO?
//- (void)segmentQueryFrom:(cpVect)start to:(cpVect)end layers:(cpLayers)layers group:(id)group target:(id)target selector:(SEL)selector;

- (ChipmunkSegmentQueryInfo *)segmentQueryFirstFrom:(cpVect)start to:(cpVect)end layers:(cpLayers)layers group:(id)group;

- (NSArray *)bbQueryAll:(cpBB)bb layers:(cpLayers)layers group:(id)group;

// TODO?
//- (void)bbQuery:(cpBB)bb layers:(cpLayers)layers group:(id)group target:(id)target selector:(SEL)selector;

- (NSArray *)shapeQueryAll:(ChipmunkShape *)shape;

- (BOOL)shapeTest:shape;


- (void)activateShapesTouchingShape:(ChipmunkShape *)shape;

- (void)resizeStaticHashWithDim:(cpFloat)dim andCount:(int)count;

- (void)resizeActiveHashWithDim:(cpFloat)dim andCount:(int)count;

- (void)rehashStatic;

- (void)rehashShape:(ChipmunkShape *)shape;

- (void)step:(cpFloat)dt;

@end