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Lesson 2. Animated Bullet Lists > Aligning Sprites Using The Property Inspector

Aligning Sprites Using The Property Inspector

Now that you are more familiar with the Property Inspector, you will use it to align the text sprites for the bullets.

Click frame 40, channel 6, to select this frame in the sprite. If the Property Inspector is not visible, open it using the Property Inspector button on the toolbar.

Click the Sprite tab of the Property Inspector and set the view mode to graphic rather than the list mode.

In this cast, the graphic mode gives you some additional information that is not included in the list view. In fact, this is the same information that is shown on the sprite toolbar at the top of the score. On the sprite toolbar, however, to access the information at the right you may need to extend the right border out to the point where the score takes up too much real estate on your screen. Now that you see that you can access the same information in the Property Inspector as you can using the sprite toolbar, you may decide that you don't always need the sprite toolbar displayed. Remember that choosing View > Sprite Toolbar toggles the toolbar on and off. Hiding the sprite toolbar makes the score smaller and more convenient, and you can bring up the Property Inspector any time you need it.

The four fields at the bottom of the Property Inspector give the location of the left, right, top, and bottom of a sprite. These numbers represent the distances, in pixels, of the sprite's edges from the upper-left corner of the stage. Pixels are the basic unit of measure for computer displays.

The numbers for the left and right coordinates, shown in the l and r fields of the Property Inspector, represent the distances of the left and right edges of the sprite from the left edge of the stage. Likewise, the top and bottom coordinates in the t and b fields of the Property Inspector are the distances of the top and bottom edges of the sprite from the top of the stage.

Figure .

In the Property Inspector, notice the left coordinate value for the sprite in this keyframe. This is the value you want the other sprites to have as the left coordinate of their corresponding keyframes. You'll need to enter this value at the end of this task, so you should write it down before you continue. In the next steps, you will select all the keyframes of the text sprites and set a left coordinate for them. When you select multiple sprites, the Property Inspector displays any settings that all the selected sprites have in common, just as the sprite toolbar does. If the sprites have different values, dashes are shown instead of values. If you enter a new value, the change affects all selected sprites.

Hold down Ctrl (Windows) or Command (Macintosh) and then click frame 55, channel 8.

You've now selected the corresponding keyframe for the second line of text. Holding down the Ctrl (Windows) or Command (Macintosh) key and clicking the keyframe allows you to add that keyframe to the frames already selected.

Hold down Ctrl (Windows) or Command (Macintosh) and then click frame 70, channel 10.

Now you've selected the keyframes in each sprite where the text has moved onto the stage and remains in position until the end of the movie. These positions are the ones in which you want the text to appear aligned.

Figure .

In the left coordinate (l) field of the Property Inspector, type the coordinate value you recorded in step 1 and then press Enter (Windows) or Return (Macintosh).

The sprites shift into alignment on the stage. As the movie plays now, each line of text will move onto the stage and end with its left edge at the pixel position you specified. Since the positions are all the same, the lines of text will appear vertically aligned.

With this step, you've completed the animated bullet list. Look over the score to determine what will appear on the stage as the movie plays. As the movie begins, the background graphic and the text that changes color play for 30 frames. Then the first bullet appears, and the first line of text begins moving across the stage. By frame 40, the bullet point has arrived at its destination.

The second bullet and line of text appear in frame 45, and by frame 55, the second bullet point is in place. In frame 60, the third bullet and line of text make their entrance. From frame 70 on, all the media elements are in place on the stage. Through the movie, the text at the top of the stage changes color every 10 frames.

Figure .

Save your work.

Click Rewind and then click Play to watch the movie.

It works! Now you're ready to create visually dynamic presentations for yourself and others.



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