Couldn't resolve variable issue Objective-C - objective-c

Question

I'm not much of an Objective-C guy I primarily use swift and I need some help from this error
Variable 'indexOfLargestGap' may be uninitialized when used here
and
Variable 'indexOfSmallestGap' may be uninitialized when used here
I have imported the code from Github and created a bridging header and fixed a few errors but I don't know how to fix this one.
The original file from Github https://github.com/jberlana/JBCroppableView
#import "JBCroppableImageView.h"
#import "JBCroppableLayer.h"
#implementation JBCroppableImageView{
JBCroppableLayer *_pointsView;
}
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
self.userInteractionEnabled = YES;
_pointsView = [[JBCroppableLayer alloc] initWithImageView:self];
[_pointsView addPoints:4];
[self addSubview:_pointsView];
UIPanGestureRecognizer *singlePan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(singlePan:)];
singlePan.maximumNumberOfTouches = 1;
[self addGestureRecognizer:singlePan];
UIPanGestureRecognizer *doublePan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(doublePan:)];
doublePan.minimumNumberOfTouches = 2;
[self addGestureRecognizer:doublePan];
}
return self;
}
-(void)singlePan:(UIPanGestureRecognizer *)gesture{
CGPoint posInStretch = [gesture locationInView:_pointsView];
if(gesture.state==UIGestureRecognizerStateBegan){
[_pointsView findPointAtLocation:posInStretch];
}
if(gesture.state==UIGestureRecognizerStateEnded){
_pointsView.activePoint.backgroundColor = _pointsView.pointColor;
_pointsView.activePoint = nil;
}
[_pointsView moveActivePointToLocation:posInStretch];
// CGPoint translation = [gesture translationInView:self.imageView];
// [gesture setTranslation:CGPointZero inView:self.imageView];
}
-(void)doublePan:(UIPanGestureRecognizer *)gesture{
NSLog(#"double pan");
CGPoint translation = [gesture translationInView:self];
CGPoint newCenter = CGPointMake(self.center.x+translation.x, self.center.y+translation.y);
[self setCenter:newCenter];
[gesture setTranslation:CGPointZero inView:self];
}
-(void)crop{
[_pointsView maskImageView:self];
[_pointsView removeFromSuperview];
}
-(void)reverseCrop{
self.layer.mask = nil;
[self addSubview:_pointsView];
}
-(UIImage *)getCroppedImage{
return [_pointsView getCroppedImageForView:self withTransparentBorders:NO];
}
-(UIImage *)getCroppedImageWithTransparentBorders:(BOOL)transparent{
return [_pointsView getCroppedImageForView:self withTransparentBorders:transparent];
}
- (void)addPoint{
self.layer.mask = nil;
NSMutableArray *oldPoints = [_pointsView.getPoints mutableCopy];
// CGPoint new = CGPointMake((first.x+last.x)/2.0f, (first.y+last.y)/2.0f);
NSInteger indexOfLargestGap; //points to here for first warning
CGFloat largestGap = 0;
for(int i=0; i< oldPoints.count-1; i++){
CGPoint first = [[oldPoints objectAtIndex:i] CGPointValue];
CGPoint last = [[oldPoints objectAtIndex:i+1] CGPointValue];
CGFloat distance = [self distanceBetween:first And:last];
if(distance>largestGap){
indexOfLargestGap = i+1;
largestGap = distance;
}
}
CGPoint veryFirst = [[oldPoints firstObject] CGPointValue];
CGPoint veryLast = [[oldPoints lastObject] CGPointValue];
CGPoint new;
if([self distanceBetween:veryFirst And:veryLast]>largestGap){
indexOfLargestGap = oldPoints.count;
new = CGPointMake((veryFirst.x+veryLast.x)/2.0f, (veryFirst.y+veryLast.y)/2.0f);
} else {
CGPoint first = [[oldPoints objectAtIndex:indexOfLargestGap-1] CGPointValue];//Variable 'indexOfLargestGap' may be uninitialized when used here
CGPoint last = [[oldPoints objectAtIndex:indexOfLargestGap] CGPointValue];
new = CGPointMake((first.x+last.x)/2.0f, (first.y+last.y)/2.0f);
}
[oldPoints insertObject:[NSValue valueWithCGPoint:new] atIndex:indexOfLargestGap];
[_pointsView removeFromSuperview];
_pointsView = [[JBCroppableLayer alloc] initWithImageView:self];
[_pointsView addPointsAt:oldPoints];
[self addSubview:_pointsView];
}
- (void)removePoint{
self.layer.mask = nil;
NSMutableArray *oldPoints = [_pointsView.getPoints mutableCopy];
if(oldPoints.count==3) return;
NSInteger indexOfSmallestGap;// points to here for second warning
CGFloat smallestGap = INFINITY;
for(int i=0; i< oldPoints.count; i++){
int firstIndex = i-1;
int lastIndex = i +1;
if(firstIndex<0){
firstIndex = (int)oldPoints.count-1+firstIndex;
} else if(firstIndex>=oldPoints.count){
firstIndex = firstIndex-(int)oldPoints.count;
}
if(lastIndex<0){
lastIndex = (int)oldPoints.count-1+lastIndex;
} else if(lastIndex>=oldPoints.count){
lastIndex = lastIndex-(int)oldPoints.count;
}
CGPoint first = [[oldPoints objectAtIndex:firstIndex] CGPointValue];
CGPoint mid = [[oldPoints objectAtIndex:i] CGPointValue];
CGPoint last = [[oldPoints objectAtIndex:lastIndex] CGPointValue];
CGFloat distance = [self distanceFrom:first to:last throuh:mid];
if(distance<smallestGap){
indexOfSmallestGap = i;
smallestGap = distance;
}
}
[oldPoints removeObjectAtIndex:indexOfSmallestGap]; //Variable 'indexOfSmallestGap' may be uninitialized when used here
[_pointsView removeFromSuperview];
_pointsView = [[JBCroppableLayer alloc] initWithImageView:self];
[_pointsView addPointsAt:[NSArray arrayWithArray:oldPoints]];
[self addSubview:_pointsView];
}
-(CGFloat)distanceBetween:(CGPoint)first And:(CGPoint)last{
CGFloat xDist = (last.x - first.x);
if(xDist<0) xDist=xDist*-1;
CGFloat yDist = (last.y - first.y);
if(yDist<0) yDist=yDist*-1;
return sqrt((xDist * xDist) + (yDist * yDist));
}
-(CGFloat)distanceFrom:(CGPoint)first to:(CGPoint)last throuh:(CGPoint)middle{
CGFloat firstToMid = [self distanceBetween:first And:middle];
CGFloat lastToMid = [self distanceBetween:middle And:last];
return firstToMid + lastToMid;
}
-(void)setFrame:(CGRect)frame{
[super setFrame:frame];
[_pointsView setFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
[_pointsView setNeedsDisplay];
}
#end
And I'm getting this from the terminal
index 0 beyond bounds for empty array