CGRect intersection from child to self - objective-c

Question

Question
How to achieve an intersection of two sprites, when one is a child of self and the other is a child of a sprite?
As their positions are completely different relevant to the comparisons between each other?
Example; this is ran before each frame to determine whether they intersect
-(void)checkInFOVWithPlayer:(Player *)player andEnemy:(Player *)enemy {
SKNode *node = [player childNodeWithName:player.playersFOVName];
if (CGRectIntersectsRect(node.frame, enemy.frame)) {
// [self playerAimAtEnemy:enemy withPlayer:player];
NSLog(#"inframe");
} else {
NSLog(#" ");
}
}
However, node is a child of player and enemy is a child of self. So how can you check if they intersect?
Here's where they're initialised
float radianAngle = ((fovAngle) / 180.0 * M_PI);
float fovOpposite = atanf(radianAngle) * fovDistance;
SKShapeNode *fov = [SKShapeNode node];
UIBezierPath *fovPath = [[UIBezierPath alloc] init];
[fovPath moveToPoint:CGPointMake(0, 0)];
[fovPath addLineToPoint:CGPointMake(fovOpposite *-1, fovDistance)];
[fovPath addLineToPoint:CGPointMake(fovOpposite, fovDistance)];
[fovPath addLineToPoint:CGPointMake(0, 0)];
fov.path = fovPath.CGPath;
fov.lineWidth = 1.0;
fov.strokeColor = [UIColor clearColor];
fov.antialiased = NO;
fov.fillColor = [UIColor greenColor];
fov.alpha = 0.2;
fov.name = #"playerFOV";
[_playerImage addChild:fov];
and enemy
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"enemyImage" ofType:#"png"];
UIImage *image = [[UIImage alloc] initWithContentsOfFile:bundle];
SKTexture *texture = [SKTexture textureWithImage:image];
_enemy = [Player spriteNodeWithTexture:texture];
_enemy.position = CGPointMake(100, 100);
_enemy.size = CGSizeMake(20, 20);
_enemy.playerAimAngle = [self returnRandomNumberBetween:0 to:360];
_enemy.anchorPoint = CGPointMake(0.5, 0.5);
_enemy.playerHealth = 100;
_enemy.playerIsDead = false;
[self addChild:_enemy];

Answer 1

-(void)checkInFOVWithPlayer:(Player *)player andEnemy:(Player *)enemy {
SKNode *fovNode = [player childNodeWithName:player.playersFOVName];
SKNode *node = [self childNodeWithName:#"enemy"];
CGPoint newPosition = [self convertPoint:node.position toNode:fovNode.parent];
if (CGRectContainsPoint(fovNode.frame, newPosition)) {
[self playerAimAtEnemy:enemy withPlayer:player];
}
}
This has ended up being my solution to the problem, Now however, I must find a way to change the frame of the node so that it is not rectangular.