How am i able to rotate a SpriteNode in the touch event?
Here the code that've got so far:
// Detect what side of the screen the user has touched.
if(touchLocation.x < 160) {
// They've touched the left side (the car turns left)
[car runAction:[SKAction rotateByAngle:-50 duration:0]];
[car.physicsBody applyImpulse:CGVectorMake(-20,0)];
car.physicsBody.velocity = CGVectorMake(-20, 0);
}else{
// They've touched the right side (the car turns right)
[car runAction:[SKAction rotateByAngle:50 duration:0]];
[car.physicsBody applyImpulse:CGVectorMake(20,0)];
_bird.physicsBody.velocity = CGVectorMake(20, 0);
}
The rotation for -50 doesn't work, even though other Stackoverflow questions have given that as an accepted answer. Also the working normal 50 degree turn seems to work for a split second then revert back to its original place.
How would I get the rotation to stick and rotate smoothly?
when you use rotateByAngle it's in radians. theres about ~6 radians in a circle. so you're rotating this sprite many times over. It isn't a 50 degree turn the way you'd expect. You need to be using variations of CGFloat(M_PI). If you want to convert between degrees and radians the conversion is
let radians = CGFloat(M_PI) * degrees / 180.0
start there and then see if the sprite behaves in a more predictable way
since your duration for your animation is 0 there is really no reason to use an action there.. can you just set
car.zRotation = radians