You almost had it right. The trick is that you need to have a unique identifier for each object (sprite) that you create and then store those objects in an array for later use.
The code below creates 5 sprites and gives them unique names: Sprite-1, Sprite-2, etc...
Whenever a touch is registered, it extracts the touched node's name, searches the array for the matching object, removes the object from the view and lastly removes the object from the array.
Note that my sample code is based on landscape view.
#import "MyScene.h"
@implementation MyScene
{
NSMutableArray *spriteArray;
int nextObjectID;
}
-(id)initWithSize:(CGSize)size
{
if (self = [super initWithSize:size])
{
spriteArray = [[NSMutableArray alloc] init];
nextObjectID = 0;
// create 5 sprites
for (int i=0; i<5; i++)
{
SKSpriteNode *mySprite = [SKSpriteNode spriteNodeWithColor:[SKColor blueColor] size:CGSizeMake(30, 30)];
nextObjectID ++; // increase counter by 1
mySprite.name = [NSString stringWithFormat:@"Sprite-%i",nextObjectID]; // add unique name to new sprite
mySprite.position = CGPointMake(50+(i*70), 200);
[spriteArray addObject:mySprite];
[self addChild:mySprite];
}
}
return self;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode: self];
SKNode *node = [self nodeAtPoint:location];
NSLog(@"touched node name: %@",node.name);
NSLog(@"objects in spriteArray: %lu",(unsigned long)[spriteArray count]);
NSMutableArray *discardedItems = [NSMutableArray array];
for(SKNode *object in spriteArray)
{
if([object.name isEqualToString:node.name])
{
[object removeFromParent];
[discardedItems addObject:object];
}
}
[spriteArray removeObjectsInArray:discardedItems];
NSLog(@"objects in spriteArray: %lu",(unsigned long)[spriteArray count]);
}
-(void)update:(CFTimeInterval)currentTime
{
//
}
@end