O'Reilly logo

Alice 3 Cookbook by Vanesa S. Olsen

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Controlling an actor with keystrokes

In this task, we will use the arrow keys to control a robot’s movement. We will add code associated with each of the four arrow keys. We will use a property to avoid the robot to perform two movements at the same time.

Getting ready

We will use an existing project that has an instance of gina as one of two characters from the Looking Glass Characters gallery.

  1. Open the project saved in the Reacting to keyboard events recipe.
  2. Click on Edit Code, at the lower-right corner of the big scene preview. Alice will show a smaller preview of the scene and will display the Code Editor on a panel located at the right-hand side of the main window.
  3. Click on the class: MyScene drop-down list and the list of classes that are part ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required