Author Archives: Markku Reunanen

More little Processing exercises. Not obligatory, just for rehearsing the topics we’ve covered. Example solutions included, but try first on your own. Simple graphics. Create the familiar smiley face using the graphical capabilities offered by Processing. smileyface.pde Variables. Declare two … Continue reading →

Let’s start with a nice little trick: instead of running your sketch, present it to make it fullscreen (shift-command-r). Decimal numbers (desimaaliluvut) So far we’ve used only int type for our calculations. Often the precision is not enough: for example … Continue reading →

Functions (Funktiot) Also known as procedures or subroutines (aliohjelma) in many languages. They are a way to structure your programs to meaningful wholes for the sake of readability, and to avoid unnecessary copypasting of the same code over and over … Continue reading →

Arrays (taulukot) So far we’ve used variables, which let you store single values and work with them. Often we need to process large amounts of data, and single variables aren’t enough for that. Arrays let you store multiple values of … Continue reading →

Flow control In numerous cases we need to do things conditionally, a number of times, or until something happens. For those sort of purposes we have different flow control statements: if – do something if a condition is true if-else … Continue reading →

Recap of variables. Properties, declaration, assignment. Conflict with reserved words. Simple mathematics in Processing We can use variables for many kinds of calculations, such as addition (+), division (/), subtraction (-) and multiplication (*). In the mathematical statements we can … Continue reading →

Course structure, aims, assessment. A brief history and overview of programming languages (slides). Walkthrough of the Processing user interface. Special characters … and how to type them on a Finnish Mac keyboard. We’ll need many of these when typing in … Continue reading →