@implementation GameLayer

@synthesize marker1;
@synthesize sumo1;
@synthesize background;

- (id) init{

self = [super init];

if(self != nil){

isTouchEnabled = YES;

//create the background
background = [Sprite spriteWithFile:@"BackGround.png"];
[background setTransformAnchor:CGPointMake(0, 0)];
[self addChild:background];

//create the first marker
marker1 = [[Marker alloc] init];
marker1.position = CGPointMake(50, 50);
[self addChild:marker1];

sumo1 = [[SumoWrestler alloc] init];
sumo1.position = CGPointMake(160, 240);
[self addChild:sumo1];

[self setupChipmunk];

}
return self;
}

#pragma mark chipmuk setup
- (void)setupChipmunk{

//init chipmunk
cpInitChipmunk();

//set up a space to work within
space = cpSpaceNew();

//define a gravity vector
space->gravity = cpv(0, -50);

//resize the spatial hash to increase collison detection speed
//the space to use, average object radius, approx amount of objects
cpSpaceResizeActiveHash(space, 50.0f, 10);

//create the body for marker #1
marker1Body = cpBodyNew(INFINITY, INFINITY);
marker1Body->p = cpv(50, 50);
cpSpaceAddBody(space, marker1Body);

//create the shape for marker #1
marker1Shape = cpCircleShapeNew(marker1Body, 12.5, cpvzero);
marker1Shape->u = 0.5; //friction
marker1Shape->data = marker1;
marker1Shape->collision_type = 1;

//add the shape to the space
cpSpaceAddShape(space, marker1Shape);

//setup the sumo body
sumo1Body = cpBodyNew(INFINITY, INFINITY);
sumo1Body->p = cpv(160, 240);
cpSpaceAddBody(space, sumo1Body);

//set up the shape for sumo1
sumo1Shape = cpCircleShapeNew(sumo1Body, 50, cpvzero);
sumo1Shape->u = 0.8;
sumo1Shape->data = sumo1;
sumo1Shape->collision_type = 0;

//set up collision data
cpSpaceAddCollisionPairFunc(space, 0, 1, &collFunc, self);

//set up the timer to loop over the tick method
[NSTimer scheduledTimerWithTimeInterval:1.0f/60.0f target:self selector:@selector(tick:) userInfo:nil repeats:YES];

}

- (void)tick:(NSTimer *)timer{
//cpSpaceHashEach(space->activeShapes, &collFunc, nil);
cpSpaceStep(space, (1.0f/30.0f) );

}

static int collFunc(cpShape *a, cpShape *b, cpContact *contacts, int numContacts, cpFloat normal_coef, void *data)
{
NSLog(@"collision function");
if(a->collision_type != 1){
return 0;
}else{
return 1;
}

}

#pragma mark TOUCHES
- (BOOL)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
UITouch *myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView:[myTouch view]];
NSLog(@"touch has begain at :: x:%f, y:%f", location.x, location.y);
return YES;
}

- (BOOL)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{

UITouch *myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView:[myTouch view]];

cpShape *shape = marker1Shape;

[shape->data setPosition: [[Director sharedDirector] convertCoordinate:location] ];

return YES;
}

- (BOOL)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
UITouch *myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView:[myTouch view]];
NSLog(@"touch has end at :: x:%f, y:%f", location.x, location.y);
return YES;
}

#pragma mark DEALLOC
- (void) dealloc{
[sumo1 dealloc];
[background dealloc];
[marker1 dealloc];
[super dealloc];
}