Page 75 - Computer - 4

Mind Fog ERROR

Speakers or headphones must be connected to a computer else the sounds played in a project
would not be audible.

Sensing Blocks
The Sensing blocks are used to check if a specific condition is satisfied or not. These

blocks are colour-coded light blue. Some of the Sensing blocks are:

Block Function

Reports true if a specified key is pressed.

Reports true if a specified colour is touched.

Reports true if a sprite is touching a specified sprite, an edge
of Stage, or mouse-pointer.

Lab Activity 2
Experiential Learning
Let us move the Cat sprite around the stage using arrow keys on
the keyboard.
1. Open a new project.

2. In the Scripts area, create the stack of blocks as shown in
the image.

3. Click the Go button to run the project.
4. Use the arrow keys to move the Cat sprite in different directions.
5. Click the Stop button to end the project.
Some sample images are given for your reference.

Pen Blocks

The Pen blocks are used to draw on the Stage using the sprite as a pen. These blocks
are colour-coded dark green. Pen blocks are not present under the Code tab. They
need to be added to the Code tab.

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