Adding an SKSpriteNode to SKScene from a child SKSpriteNode - ios

Question

I have an SKScene where I am adding an SKSpriteNode. I have subclassed SKSpriteNode class to create this node. In the subclass i am defining certain SKActions on the sprite. What i want is that when the SKAction sequence that runs on this sprite ends, i add a new sprite node to the scene. How is this possible. Following is my code:
code for sequence that i am running on skspritenode subclass (TEMissileNode) :-
SKAction *moveDown = [SKAction moveToY:self.position.y - 20 duration:0.2];
SKAction *animation = [SKAction animateWithTextures:textures timePerFrame:time/7];
SKAction *moveMissileProjectile = [SKAction moveTo:pointoffScreen duration: time];
SKAction *group = [SKAction group:#[animation, moveMissileProjectile]];
SKAction *sequence = [SKAction sequence : #[moveDown,group, [SKAction removeFromParent]]];
[self runAction:sequence];
From the main scene I am calling the method which executes these actions
TEMissileNode *missile = [TEMissileNode missileAtPoint: CGPointMake(copter.position.x + copter.size.width/2, copter.position.y - 20)
Type:TEMissileTypeA];
[self addChild:missile];
[missile moveTowardsPosition:position];
What i want is that after the completion of the method (moveTowardsPosition:position), I add another child sprite node to the scene but how to get a completion notification from the method.

Answer 1

There are two ways of going about calling code after the completion of an action.
Use the completion block after runAction.
[self runAction:sequence completion:^{
//Add relevant code here.
}];
Or, add another block to execute at the end of the sequence.
SKAction *actionBlock = [SKAction runBlock:^{
//Add relevant code here.
}];
SKAction *sequence = [SKAction sequence : #[moveDown,group, [SKAction removeFromParent], actionBlock]];