Part of code for Outer Clouds

gistfile1.txt

-(void)startSpawning {
    [self runAction:[SKAction repeatActionForever:
                     [SKAction sequence:@[
                                          [SKAction performSelector:@selector(spawnPlanets)
                                                           onTarget:self],
                                          [SKAction waitForDuration:[self getSpawnLength]]]]]];
    
    
    [self runAction:[SKAction repeatActionForever:
                     [SKAction sequence:@[
                                          [SKAction performSelector:@selector(createFuel)
                                                           onTarget:self],
                                          [SKAction waitForDuration:[self getSpawnLength]*5]]]]];
    
}


-(int)getSpawnLength {
    return _spawnLength;
}


-(SKEmitterNode*)createStartField:(float)speed
                         lifetime:(float)lifetime
                            scale:(float)scale
                       birthdRate:(float)birthRate
                            color:(SKColor*)color {
    
    SKLabelNode *star = [SKLabelNode labelNodeWithFontNamed:@"Helvetica"];
    star.fontSize = 80.0f;
    star.text = @"★";
    
    SKTexture *texture;
    SKView *textureview = [SKView new];
    texture = [textureview textureFromNode:star];
    texture.filteringMode = SKTextureFilteringNearest;
    
    SKEmitterNode *emmiterNode = [SKEmitterNode new];
    emmiterNode.particleTexture = texture;
    emmiterNode.particleBirthRate = birthRate;
    emmiterNode.particleColor = color;
    emmiterNode.particleLifetime = lifetime;
    emmiterNode.particleSpeed = speed;
    emmiterNode.particleScale = scale;
    emmiterNode.particleBlendMode = 1;
    emmiterNode.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMaxY(self.frame));
    emmiterNode.particlePositionRange = CGVectorMake(CGRectGetMaxX(self.frame), 0);
    emmiterNode.particleSpeedRange = 10.0;
    
    [emmiterNode advanceSimulationTime:lifetime];
    return emmiterNode;
}