ios7 - SpriteNode not following cgpath -


i have problem new game sprite... "car" follows track on first lap on seems getting offset @ end of every lap. tell me doing wrong ?

- (void)createscenecontents{     self.backgroundcolor = [skcolor blackcolor];     self.scalemode = skscenescalemodeaspectfit;      // creating car , track     skspritenode *mycar = [self newcar];     mycar.position = [[self trackshape] position];;     [self addchild:mycar];      skshapenode *track = [self trackshape];     track.position = cgpointmake(48, 40);     [self addchild:track]; }    - (skspritenode *)newcar{     // generates rectangle sprite node     skspritenode *hull = [[skspritenode alloc] initwithcolor:[skcolor graycolor] size:cgsizemake(20,50)];     cgpathref pathref = [[self bpath] cgpath];     // car should follow track     // ok on first lap     skaction *hover = [skaction sequence:@[[skaction followpath:pathref duration:20.0],                                     ]];      hull.physicsbody = [skphysicsbody bodywithrectangleofsize:hull.size];     hull.physicsbody.dynamic = no;     [hull runaction: [skaction repeatactionforever:hover]];     return hull; }   -(skshapenode *)trackshape{     skshapenode *newshape = [[skshapenode alloc] init];     newshape.position = cgpointmake(48, 40);     newshape.path = [[self bpath] cgpath];     newshape.fillcolor = [skcolor clearcolor];     newshape.strokecolor = [skcolor bluecolor];     newshape.linewidth = 8;     return newshape; }

this path... it's in same class.

-(uibezierpath *)bpath{     uibezierpath* bezierpath = [uibezierpath bezierpath];     [bezierpath movetopoint: cgpointmake(48, 40)];     [bezierpath addlinetopoint: cgpointmake(10.5, 147.5)];     [bezierpath addcurvetopoint: cgpointmake(131.5, 209.5) controlpoint1: cgpointmake(10.5, 147.5) controlpoint2: cgpointmake(45.01, 253.16)];     [bezierpath addcurvetopoint: cgpointmake(267.5, 209.5) controlpoint1: cgpointmake(217.99, 165.84) controlpoint2: cgpointmake(259.57, 194.46)];     [bezierpath addcurvetopoint: cgpointmake(283.5, 302.5) controlpoint1: cgpointmake(275.43, 224.54) controlpoint2: cgpointmake(325.48, 263.29)];     [bezierpath addcurvetopoint: cgpointmake(105.5, 327.5) controlpoint1: cgpointmake(241.52, 341.71) controlpoint2: cgpointmake(128.94, 352.5)];     [bezierpath addcurvetopoint: cgpointmake(10.5, 396.5) controlpoint1: cgpointmake(82.06, 302.5) controlpoint2: cgpointmake(-27.5, 333.95)];     [bezierpath addcurvetopoint: cgpointmake(239.5, 448.5) controlpoint1: cgpointmake(48.5, 459.05) controlpoint2: cgpointmake(195.5, 463.67)];     [bezierpath addcurvetopoint: cgpointmake(283.5, 40.5) controlpoint1: cgpointmake(399.5, 40.5) controlpoint2: cgpointmake(375.39, 205.99)];     [bezierpath addcurvetopoint: cgpointmake(153.5, 78.5) controlpoint1: cgpointmake(191.61, -124.99) controlpoint2: cgpointmake(153.5, 78.5)];     [bezierpath addlinetopoint: cgpointmake(48, 40)];     [bezierpath closepath];     return bezierpath; }

after while, results

enter image description here

i scrapped car method, , placed within this.

i had tweak position of track, seems work.

- (void)createscenecontents{     self.backgroundcolor = [skcolor blackcolor];     self.scalemode = skscenescalemodeaspectfit;      skspritenode *hull = [[skspritenode alloc] initwithcolor:[skcolor graycolor] size:cgsizemake(20,50)];     cgpathref pathref = [[self bpath] cgpath];      skshapenode *track = [self trackshape];     //track.position = // scrap me.. set in track shape method     [self addchild:track];      hull.physicsbody = [skphysicsbody bodywithrectangleofsize:hull.size];     hull.physicsbody.dynamic = no;     hull.position = cgpointmake(48, 40);     [self addchild:hull];      skaction *hover = [skaction followpath:pathref asoffset:no orienttopath:yes duration:5.0];     [hull runaction: [skaction repeatactionforever:hover]]; }

in trackshape method, set position 0,0

newshape.position = cgpointmake(0, 0);

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