How to add a loop in a game - ios

Question

I'm trying to write a basic cause and effect game. So far I've managed to display an image of a rocket on the screen (appers randomly on the x axles) and when touched launches. The program works fine but I want the rocket to reappear (loop 10 times), can anyone give me some guidance on how I can achieve this.
I have attached the code from my scene.m below...
#import "MyScene.h"
#implementation MyScene
#import AVFoundation;
-(id)initWithSize:(CGSize)size {
if (self = [super initWithSize:size]) {
/* Setup your scene here */
self.backgroundColor = [SKColor whiteColor];
SKSpriteNode *rocket1 = [SKSpriteNode spriteNodeWithImageNamed:#"rocket.png"];
CGRect rocket1frame = CGRectMake(100, 100, 100, 100);
[rocket1 setSize:rocket1frame.size];
rocket1.position = CGPointMake(CGRectGetMidX(self.frame), 100);
[self addChild:rocket1];
_ship = rocket1;
}
return self;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
CGPoint currentLocation = [[touches anyObject] locationInNode:self];
CGPoint previousLocation = [[touches anyObject] previousLocationInNode:self];
CGRect shipRect = _ship.frame;
if (CGRectContainsPoint(shipRect, previousLocation))
{
CGPoint lvPosition = CGPointMake(_ship.position.x - (previousLocation.x - currentLocation.x), _ship.position.y);
_ship.position = lvPosition;
SKAction *sound = [SKAction playSoundFileNamed:#"slideup.mp3" waitForCompletion:NO];
SKAction *moveNode = [SKAction moveByX:lvPosition.x y:3000.0 duration:3.0];
[_ship runAction: sound];
[_ship runAction: moveNode];
}
}
#end;

Answer 1

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
CGPoint currentLocation = [[touches anyObject] locationInNode:self];
CGPoint previousLocation = [[touches anyObject] previousLocationInNode:self];
CGRect shipRect = _ship.frame;
if (CGRectContainsPoint(shipRect, previousLocation))
{
[self launch:10 p1:currentLocation p2:previousLocation rect1:shipRect];
}
}
-(void)launch:(int)count p1:(CGPoint) currentLocation p2:(CGPoint) previousLocation rect1:(CGRect) shipRect
{
CGPoint lvPosition = CGPointMake(_ship.position.x - (previousLocation.x - currentLocation.x), _ship.position.y);
_ship.position = lvPosition;
SKAction *sound = [SKAction playSoundFileNamed:#"slideup.mp3" waitForCompletion:NO];
SKAction *moveNode = [SKAction moveByX:lvPosition.x y:3000.0 duration:3.0];
[_ship runAction: sound];
[_ship runAction: moveNode completion:^{
if (count)
[self launch:count-- p1:currentLocation p2:previousLocation rect1:shipRect];
}];
}