Scratch coordinate movement

Scratch Coordinate & Movements Scrat ch Coordinate and Movement... Handout Coordinate Sheet... Move – Common Uses Moving a sprite forward in an animation  Larger steps will make the

Scratch

Coordinate & Movements

Scrat ch

Coordinate and

Movement

JOURNAL: Write an algorithm on how to move the cat down the hall and up the stairs?

Handout Coordinate Sheet

FIND: X:0, Y:0

X:0, Y:0

FIND:

X:100, Y:0

X:100, Y:0

FIND:

X:0, Y:-100

X:0, Y:-100

FIND:

X:200, Y:100

X:200, Y:100

FIND:

X:-200, Y:150

X:-200, Y:150

FIND:

X:100, Y:-180

X:100, Y:-180

to move in the reverse direction

Move – Common Uses

 Moving a sprite forward in an animation

 Larger steps will make the sprite

move faster

 Smaller steps will make the sprite

move slower

 Making a sprite follow a mouse

 The sprite will chase the cursor

around the screen

Go to

 Go to X: () Y: ()

 The “Go to” block sets the sprite’s X and Y

position to the specified amounts.

 X and Y values are related to the coordinate plane

 The “Go to” block is used when a sprite needs

to jump to another spot

 Simplest way to move a sprite around the

screen

Go to – Common Uses

indicated location

the beginning of a stage

 Glide () Secs to X: () Y: ()

 The Glide block moves the sprite steadily to a

specified X and Y position

 The sprite will move in a specified number of seconds

 Smaller numbers will make the sprite move faster

 Larger number will make the sprite move slower

 The Glide block is like the Move block but with more precision

Glide – Common Uses

 Fish moving in a tank

 Falling objects

 A sprite moving to another sprite

Scratch Examples

Log into scratch

URL:

https://scratch.mit.edu /projects/17690143 /

Click Green flag Use number keys

1, 2, 3

To show the different movements

Direct Instruction

 All students log into Scratch

Baseball Code

Assignment: apply castle 4 or

Brick-Wall-and-Stairs

The End