Page 86 - Learn To Program With Scratch

ChangingHat 3. Open the application ChangingHat.sb2, shown below. The hat in this
.sb2 application is a sprite that has five costumes. Create a script to switch
the Hat’s costume when it is clicked. Then create a game in which the
player dresses characters by clicking on different pieces of clothing.

Hat sprite has
five costumes.

Aquarium .sb2 4. Open Aquarium.sb2. The application contains six sprites, as illustrated
below. Try out different graphic effects to animate the aquarium. Here
are some suggestions:
a. Use the whirl effect on the Stage. Start with a large number like
1,000 to give the figure a wavy appearance.
b. Change the costumes for the Bubble1 and Bubble2 sprites at an
appropriate rate.
c. Move the Fish across the Stage while changing its costume.
d. Apply the ghost effect to the Tree sprite.
e. Use the color effect on the Coral and Bubble3 sprites.

Bubble1 sprite
Bubble3 sprite
Fish sprite
Bubble2 sprite
Tree sprite
Coral sprite

Words .sb2 5. Open the application Words.sb2 (shown on the next page) and animate
the words using size and rotation. Create the two scripts shown in the
figure and run the application to see the result.

64 Chapter 3
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