Animation in App Lab

The examples listed below illustrate concepts used in animation in App Lab. In most cases the programs are incomplete, illustrating the concept but not implementing it fully. These examples may give an error that you don't have the Circuit Playground connected, but you can choose the option to run them without the Circuit Playground connected.
See also Bill Barnum’s App Lab animation YouTube tutorials, which include how to implement a scrolling background.

Move a beach ball using arrow keys on the keyboard

Accelerate a beach ball using arrow keys

Make beach ball bounce off the left wall

Seagull wraps around the screen left-and-right

Check if beach ball intersects the shell. Note that to make this work your program must have and use a global variable called objectsIntersect.

Have a character "say" something using a speech bubble, "wait" for some milliseconds, and move to some new location, optionally changing size, in this program.