The Slippy Flippy Challenge: Make Marquee Style Scrolling Backgrounds

To give a sense of motion in a game one can use parallax backgrounds. Such backgrounds are in constant motion, but at a different rate than the foreground motion. In Slippy Flippy, we use ice floating by on the water for such an effect. While this seems rather complicated, it is not as difficult as …

The Slippy Flippy Challenge: Make Active Boundaries in Sprite Kit.

In Flappy Bird,  hitting the top or bottom boundaries ends the game. They also convey a sense of motion. The boundaries make for a better playing experience. Last time, we set up collision detection, but we need boundaries that are sprites. Sprite node boundaries would be able to tell us what we hit, and run …

The SlippyFlippy Challenge: Working With Sprite Kit Collision Detection

In our last installment, we ran into a problem trying to get collisions to work correctly with the obstacle. We want it to interact with the penguin, but not the game world. If we  turn on physics, either the edgeLoop on the scene  blocks the obstacle from entering the scene by , or causes very jittery …

The SlippyFlippy Challenge: Make a Better Obstacle in Sprite Kit

Build a Better Obstacle In the SlippyFlippy challenge we have a small obstacle. In Flappy Bird there are two obstacles which the bird has to pass between.  Let’s change our current obstacle into a pass-through obstacle like Flappy Bird.   Make a Random Obstacle Our current obstacle is a bit boring. It always shows up …

SlippyFlippy 1.1: Adding a Fading-in and out Label with Background in SpriteKit

Today we have a bug to deal with in SlippyFlippyPenguin. There are a two reports of when a user selects the hard skill level  the game  immediately goes to game over. I cannot find anything that is different in the code to account for this except user error. I think the user error is users …