Randomizing node movement duration

Question

I am making a game in SpriteKit and I have a node that is moving back and forth across the screen and repeating using the code:

    let moveRight = SKAction.move         


        

Answer 1

I don't have any project where I can try right now.

But you might want to try this :

let action = [SKAction runBlock:^{
    double randTime = 1.5; // do your arc4random here instead of fixed value
    let moveRight = SKAction.moveByX(frame.size.width/2.8, y: 0, duration: randTime)
    let moveLeft = SKAction.moveByX(-frame.size.width/2.8, y: 0, duration: randTime)
    let texRight = SKAction.setTexture(SKTexture(imageNamed: "Drake2"))
    let texLeft = SKAction.setTexture(SKTexture(imageNamed: "Drake1"))

    let sequence = SKAction.sequence([texRight, moveRight, texLeft, moveLeft])

    Drake1.runAction(sequence)
}]; 

let repeatAction = SKAction.repeatActionForever(action)

Drake1.runAction(repeatAction)

Let me know if it helped.