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Coordinates

In Scratch 3.0, the Stage Play and Learn

works on a coordinate 1. animal in Scratch Logo.
system to position 2. We click on to start our main program.
sprites. The stage is
divided into an X-axis

(horizontal) and a Y-axis (vertical). The center of the stage has the coordinates (0, 0). The
X-axis values range from -240 to +240, where negative values move a sprite to the left
and positive values move it to the right. The Y-axis values range from-180 to +180, where
negative values move the sprite down and positive values move it up.

Scratch 3.0 was designed by Mitchel
Resnick and the Lifelong Kindergarten
Group at the MIT Media Lab

Coordinate System

The center is (0,0).
X-axis ranges from-240 (left) to +240 (right).

Y-axis ranges from-180 (bottom) to +180 (top).

Direction 90

In Scratch 3.0, direction refers to the way a sprite (up)
is facing or moving on the stage. The direction is
measured in degrees, with 0 degrees pointing to the
right, 90 degrees pointing up, 180 degrees pointing 180 (Left) (Right) 0

left, and -90 degrees pointing down. You can change
a sprite's direction by using the rotation style or by
entering a specific degree value. For example, if you (Down)
set the direction to 90, the sprite will face upward,

and if you set it to 180, it will face left. -90
In Scratch 3.0, the direction of a sprite controls the

way it moves on the stage. Directions are measured in degrees, starting from the right side
of the stage. A sprite facing 0º points to the right, 90° points upward, 180° points to the

63 Computer — 5