Hello World - Programming with Events

Now that you've learned
how to use Sprite Lab, you're going

to want to make your program react
when someone plays with it.

To do that, you're going to use events.

An event tells your program to listen

for something to happen
and then react right away.

Some examples of events are listening
for a mouse, click

an arrow button, press
or a tap on the screen

blocks like when clicked are called
event blocks.

The code connected to an event
block runs

when the appropriate action is detected.

For example,

if I attach this say block to the
when clicked event,

my sprite will say something
when the user clicks

or taps on it.

Notice that event blocks
don't snap into your main program.

Instead, they create
little programs of their own.

If you have multiple sprites,

you can use additional events
to tell an interactive story.

Hello, Pizza!

Avocado, my friend!

You'll soon be learning
how to do even more in Sprite lab,

including changing the size
or appearance of a sprite,

setting different backgrounds, playing
sounds, and more.

What do you want your sprites to do
when someone interacts with them?

It's up to you.