Lab 9
Page 3

Hints on using the Alice Tutorial

The Alice Tutorial is quite straightforward. However, there are a couple of places where we thought a few extra words of explanation would be helpful:

Tutorial Part One

• It may not be obvious at first glance where the command box is located. It is at the very top of the control panel.
• After you have finished a command, you can use a space to separate it from a new command. Alternatively, if the command you have just finished is selected, you can backspace to delete that command and write a new one. A list of commands that have not been deleted is kept in the command box. You can see them by clicking the menu arrow at the right of the command box.

Tutorial Part Two

• When you click on the script tab to open the script editor, the camera view may be positioned so that part of the top of the script editor window is not visible. Use the mouse to move the camera view so that you can see all of the top of the script editor window.
• The Perform script button is at the upper right of the script editor window. This is a different button from the Perform Line button; the behavior of the objects is not the same for each button.
• Refer to the section of Part Two that leads you through making a cement truck move forward like an inchworm. At the point at which you have named your commands you need a last command "inchworm" to make the animation work properly. So the script should look like:

  
  scrunch=cementtruck.resize(fronttoback,1/2,likerubber)
  unscrunch=cementtruck.resize(fronttoback,2,likerubber)
  goforward=cementtruck.move(forward,2)
  inchworm =DoInOrder (
               scrunch,
               DoTogether(unscrunch, goforward)
                      )
  inchworm
  

Tutorial Part Three

This part did not have any tricky parts that we noticed.