INTRODUCTION TO SCRATCH ANIMATION

BASICS

WHAT WE MUST LEARN WELL1. Planning a storyboard for an animation 2. Understanding Scratch Codes3. Creating backgrounds and its costumes4. Creating Sprites (characters) and their costumes5. Carefully and creatively create the script of codes for an

animation 6. Testing and improving an animation7. Draw flowchart for an animation

ANIMATION CAN BE USED TO:1. tell a story; 2. deliver a message (e.G. Advertisement or

campaigns); or 3. show a process/reaction.

SPRITES•SPRITES ARE characters that move, rotate or change in an animation. Sprites can be a picture or a text.

SPRITES ARE CHARACTERS WITH

1) appearance2) behaviour3) position4) movement5) output statements6) repetition

APPEARANCE OF A CHARACTER

BEHAVIOUR OF A CHARACTER• Every character may change its look to show movement.

POSITION OF A CHARACTER• Cartesian coordinates (x, y) are used to show the

positions of the characters. • The centre of the screen is used as the reference point (x = 0, y = 0)

MOVEMENT OF A CHARACTERBy default, Scratch allows the sprite to rotate and makes the sprite face right.

1) If can rotate, setting will turn sprite clockwise or anti-clockwise.

2) If sprite face right, then will move it towards the right.3) If set to don’t rotate, sprite will not turn at all.

MOVEMENT OF A CHARACTER1) A move instruction will make the character move once. We

need to specify the number of steps.2) To run the “move” instruction many times, we must put the

move instruction inside a loop instruction.3) We must use a wait instruction to pause or delay the

movement of a character until a key is pressed or time is up.

MOVEMENT OF A CHARACTERWe can make a character move to • a specified position; • the mouse-pointer position; or • a target (that is, another character).

The go to and glide instructions are similar except that <Go to> takes place instantly and <Glide> movement can use a timer. When a longer time is set, we can see the character gliding to the specified position.

SUMMARY FOR MOVEMENT:PROGRAMMED DIRECTION AND ORIENTATION

In an animation, OTHER THAN MOVE, we can use these codes to automate the movement of a sprite.

OUTPUT STATEMENTS• An output statement allows text to be displayed or

sound to be heard.

REPEATING INSTRUCTIONS• One or more instructions may be repeated for a

number of times or forever.

Next lesson, 1) storyboard2) background3) audioand many more!...

PRESENT YOUR CODES IN A PPT SLIDE1) Start > Snipping Tool2) New (by default, use rectangle snip)3) Copy4) Go to PPT slide, paste.5) Format>Remove background6) Organise and tidy your slide7) 2 sprites per slide, titles are sprite names.

COPY