CSCI-A110 Lab 10: Scratch

Requirements

Make a Scratch project with a script.

Your project can be almost anything, but it must meet three basic requirements:

1. There must be a sprite with a script.

2. The script must be interactive. That is, it must interact with the user so that the user can control it. There are at least three ways you can script this interaction:

   • Using ask and say for text input and output.
   • Using the mouse and having sprites respond to the mouse's position.
   • Having a "button" sprite that responds to the mouse clicking on it by sending a broadcast message to control other sprites.

   When the script starts running, it should show some instructions for how the user may interact when it, unless that is completely obvious.

3. The script must use at least one repetition control block (forever, repeat, repeat until, forever if).

A minimal project could be something as simple as this:

1. The sprite asks the user, how high should I count?
2. The user inputs 10, for example, and the sprite counts out, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

However, that would be very boring, and I encourage you to spice it up. Extra features, effort, and creativity beyond the requirements will earn extra credit. For example, you might create your own sprites or sounds, or have a more extensive script that goes beyond the bare requirements. You might have multiple sprites and multiple scripts, selection control blocks (if, if/else), variables, lists, or broadcast messages.

Here are some possible kinds of projects you might make. I don't want to limit your choices; but if it's hard to decide on something, consider these:

• A play (skit with dialog) or dance with human or animal characters.
• A drawing made with the pen.
• A musical performance.
• A "speech" presentation or quiz.
• A game or puzzle.

If you're not sure your project idea is suitable or feasible, discuss it with me.

Turning It in

This project will be turned in through Oncourse Resources, Lab 10. This means you are publishing your project to the class.

I encourage you to download and run the projects of your fellow students!

Grading Criteria