In this video, you'll learn how to
make a text sprite that will fall across the screen
with a cool effect.
First, use the Paint New Sprite button.
Use the Text tool to add a message.
This example will use the company's name,
Snowman Swag Company, but you can type anything you like.
Drag the sprite to the location on the stage
where you want it to begin its fall.
For this effect, the sprite should make
multiple copies of itself fall across the screen.
In Scratch, a copy of the sprite is called a clone.
Once a clone is created in your project,
you can add code that tells is what to do.
From the Control menu, add a create clone of myself block
and a when I start as a clone block.
Each of the clones needs to start at a random place
on the screen before falling, so use a go to block
with the pick random operator.
Input the values negative 240 and positive 240
to represent the right and left edges of the screen.
This will make each clone start falling from a random spot.
Test it out.
When the create clone block is clicked,
the code under the when I start as a clone block runs.
A clone appears at a random, horizontal location
on the screen.
Each clone runs any code under the create clone block.
Add repeat, wait, and change y by negative 10 blocks
to make each clone fall down the screen.
Try it out.
Clones fall down the screen, but they pile up on the bottom.
You also need to keep clicking the create clone block
to make clones.
Add a delete this clone block at the bottom of the
when I start as a clone stack to delete the clones
when the code stack finishes running.
Add a repeat block and place the create clone block
inside it with a wait block.
Now, when the repeat 10 block stack is clicked,
multiple clones appear and fall down the screen.
The only way to run this code though, is to click on it.
To run it as part of your commercial,
add a when flag clicked block to the top of the repeat loop
to make the text fall when the flag is clicked.
Or, use broadcast and when I receive blocks
to tell a text exactly when to start
falling down the screen.
In this example, the text doesn't start falling
until the end of the commercial.
Now that the basic code for the falling text is set up,
you can add fun effect blocks, like change ghost effect,
change fisheye effect, and even a play sound block
with a short sound.
Tinker with the values in the blocks
until you like the speed of the clones,
the number of clones, and the intensity of the effect.
When you tinker with code while it's running,
you can easily see how making a small or large change
to one value impacts your program.
Computer scientists frequently tinker with their code.
They don't always know the right answer from the beginning.
They keep trying until their program works
the way they want it.
Keep exploring how making changes affects your program,
maybe by using other effect blocks like change color
and change whirl effect.
Now it's your turn.
Paint a new sprite for your company name or other text.
Add code to create clones in a loop
and to create behavior and effects for each of them.
Most importantly, add a when flag clicked event,
or a broadcast block with a matching when I receive block
at the top of the create clone stack
to make your clones display.
Make your company name or message memorable with a special effect.
Create a moving sprite for the audience to click on.
Add a button for buying your product.
Ask your audience a question, and program a response.
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