Good Structure
Good Structure
When writing a computer program it is important that the program will always do exactly the same thing every time.
When a program is started, you do not want it to carry on from where it was last time, you want it to go back to the beginning.
To do this, it is important that you include instructions to clear away any data and drawings and that you reset the starting positions of your sprites. This is called initialising the program.
Watch the video below to learn about initialisation.
ScratchSequence.mp4Draw a Square
Download the file from the bottom of the page and create a program that will draw a square with sides of 100 steps.
You might like to use the following blocks....
Make sure your program has a good structure:
Start
Initialise:
Clear the screen
Set the starting position and direction for the sprite
Draw the square
End the program
Press the Green Flag to see a demonstration.
(Press space to reset the program)
Key Words
Initialise
To get a program ready so that it will do exactly the same thing each time it is run.
How to Download the files and use them in Scratch....
...on a computer.
ScratchDownload.mp4...on a smartphone or tablet
ScratchDownloadSmart.mp4