skaction

I've already asked this question in a different way here; Swift-Setting a physics body velocity by angle but the three attempts to answer it were unfortunately not exactly what I'm looking for, although I'm grateful for what they taught me anyway. I decided that I should simply rephrase my question with an example and further explanation instead of perpetuating a discussion via comments. So here it is. Imagine I have an SKNode positioned in the centre of the screen. Let's say this is a ball, so any rotation action on it is not visible. I would need a way to have a random angle selected, and

I was wondering if it was at all possible to make an SKNode move forward in a particular direction, but with only one factor. I'm aware of both applying an impulse and setting the velocity of a physics body, but they're both determined by two factors; dx and dy. I also know of rotating to an angle with SKActions. But is it possible to make an object simply "move forward" once it has been set on an angle? Or set its velocity with just one factor? Thanks in advance. Sure I think what you're talking about is something like this: Now let's say you have an SKSpriteNode that is called player who

I use the following piece of code to generate SKNodes periodically. Is there a way to make the period of generation of these SKNodes random. Specifically, how do I make the "delayFish" in the following code an action with a random delay? [self removeActionForKey:@"fishSpawn"]; SKAction* spawnFish = [SKAction performSelector:@selector(spawnLittleFishes) onTarget:self]; SKAction* delayFish = [SKAction waitForDuration:3.0/_moving.speed]; SKAction* spawnThenDelayFish = [SKAction sequence:@[spawnFish, delayFish]]; SKAction* spawnThenDelayFishForever = [SKAction repeatActionForever