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Lesson 8. Film Loops and Buttons > Exchanging Cast Members

Exchanging Cast Members

First you need to open the start file. Then you will incorporate the alternative versions of the paper cast members.

1.
Open Start.dir in the Start folder in the Lesson08 folder and save it as Loop.dir in your Projects folder.

The folders and paper are already set up on the stage and in the score. You will recognize this movie; it is the same movie you created in Lesson 7, just before you introduced the sequence Doc1, Doc2, Doc3, Doc4, Doc1,…to make the paper flap as it crosses the stage.

Next you will work in channel 3 to start setting up the film loop. You will set up a sequence of four frames in which each version of the four paper sprites (Doc1, Doc2, Doc3, and Doc4) appear once. This is different than what you did in the previous lesson, where you exchanged cast members after you tweened the keyframes. In this task, you will exchange cast members before you create the keyframes.

2.
Delete the sprite in channel 6.

This is the part of the animation in which the paper slides into the folder on the right side of the stage. In a later task, you will re-create this sequence using the film loop cast member.

3.
Choose View > Sprite Labels > Changes Only.

By setting the view of the score to Changes Only, rather than Keyframes, the score will show an indication of a change in members within a sprite segment. To more easily work with individual cells, you may also want to set the Zoom value to 100% or even 200%.


Figure .


In the illustration, notice that the sprite in channel 3 is a series of individual cells. If your score does not look like this, select channel 3 and Choose Edit > Edit Sprite Frames so you can select individual cells. As you learned in Lesson 7, you will need to edit individual cells to change the cast members to create the animation.

4.
Select channel 3, frame 2, in the score, select cast member 2 in the Cast window, and click Exchange Cast Members on the toolbar (Windows Ctrl+E, Macintosh Command+E).


Figure .


This is an alternative version of the paper. Although the score won't show the full name of the cast member when the cast member changes within the sprite segment (there isn't room in a single cell), you will see that a different cast member is indicated. Place the cursor over the cell in frame 2, channel 3, and the data tip will show the cast member for that cell.

5.
Select channel 3, frame 3, in the score, select cast member 3 in the Cast window, and click Exchange Cast Members on the toolbar.

This is another version of the paper. Again, place the cursor over the third cell in channel 3, and the data tip will show the name of the cast member for that cell.

6.
Select channel 3, frame 4, select cast member 4, and click Exchange Cast Members on the toolbar.


Figure .


7.
Save your work.


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