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Activity 3.4

Take the same example of fish we studied in previous class, add a fish sprite in
your project with an underwater background. Create the same sprite in duplicate
form and float both the fishes in random positions till these fishes do not touch
each other. Means if these fishes touch each other then it will play sound and

stop floating.

Gowri: Before moving to the solution, one more block is to be learned now, which is given below: -

3.4 “TOUCHING?” BLOCK — “SENSING” BLOCK
All these are “Boolean” blocks.

3.4.1 “touching mouse-pointer?” block

This is known as “Boolean” block, as this has hexagonal like
shape. This block has a “?” question mark means it is asking
a question and an answer needs to be returned as true or false. And this block also

has drop-down menu so has three options, which are: -

3.4.1.1 “touching mouse-pointer?” block
This block is used to ask whether the sprite is touching the mouse pointer or not.

3.4.1.2 “touching edge?” block
This block is used to ask whether the sprite is touching the edge of the stage or not.

3.4.1.3 “touching sprite?” block

This block is used to ask whether the sprite is touching another sprite (name of
sprite appears automatically) or not.

3.4.2 “touching color?” block

This is also a “Boolean” block, and asks whether the sprite is touching a color or not.
You can choose a color of your own choice which you want to compare.

3.4.3 “color is touching?” block

This is also a Boolean block, and ask whether the color specified on the left side in
stage is touching the color given on the right side or not. You can choose a color of

your own choice which you want to compare.

Aryan: Ok! Thanks, dear, for telling this, I get it, we will use these blocks to check whether fish
is touching another fish or not.

36 KVS DELHI REGION 2025