Living Without Story Boards: Using SKEmitter Nodes to Make the Fire Pendulum.

In this last lesson in building the clock, I'll introduce emitter nodes. I'll turn our pendulum into a  ball of fire and make it snow in the app. Emitter nodes are special nodes that emit particles which follow their own physics. They cannot be assigned physics properties like collisions but make for many great special effects …

From Apple To Raspberry Pi: An Example of Implementing a Python MVC (Part 2)

In the last part we implemented the view and controller for the Popper's Penguins application. Now we add the model.  Along the way, we will make a delegate method for the model and change our target actions to add our data to a list. Add the Model Class We want to keep a list of our penguin …

From Apple To Raspberry Pi: An Example of Implementing a Python MVC (Part 1)

I gave a template for MVC in the last post, This time I'm going to use it in the Popper's Penguins application. We'll re-organize what we already did with views and controllers to match the template.  We'll add the model in the next installment of this series. Changing the View Let's start by modifying the …

Living without Storyboards: Make a Working Stopwatch in Sprite Kit

Over the last few posts we've made a clock and stopwatch application in Sprite Kit. Last time, we added an animated button display for the stopwatch. This time we get the stopwatch buttons working. Get Our Variables in Order We will use several variables in our changes. Change our variables to the following: We changed …