Code Toolkit: Python, Spring 2023

Week 7 — Homework assignment

due: Tuesday, March 21, 8pm

0. Review this week's lecture notes.

1. Create a composition using any draw commands that you wish. Create one or two global variables and use them in some way in your composition: perhaps to control the color, size, or location of some things that you're drawing. Inside the draw() block, change the variable(s) (incrementing or decrementing) by a small amount so that the composition somehow changes "on its own".

   Now, add one or two if statements using millis() and put your variable increment or decrement inside the if statement(s) so that the sketch only changes based on some timing.

   Using two variables, adjust the timing so that some things change while other things pause, and then alternates so the moving things pause and the other things move?

   Experiment so that this is either (a) triggered by user input (say, pressing a key), or (b) repeats in time.

2. You can continue with the previous example or start something new. If continuing, please Save As and rename indicating that you are working on part 2. Create a composition that keeps track of state in some way.
   • Can you add three different raster images that the user cycles through by pressing a key?
   • Can you combine several things that we've talked about so far so that by pressing a key, the user toggles the speed at which something is moving?

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