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Answers
Step 1: When we open Scratch the sprite, “cat” is already added there. Then

click on “Events” block, drag “when flag clicked” block in the script area.
Step 2: Now, do the coding (as shown in Fig. 6.2).

Aryan: Oh wow! I understood now how to use the keyboard and mouse to do some specific tasks
in the scratch. I liked it very much.

Gowri: Let me also tell you how to move the sprite “spaceship” using keyboard keys and create
a clone of the sprite “missile” when “space” key is pressed.

Aryan: Can you, please tell me the activity of “spaceship” game again, so that I can understand
the concept more clearly.

Gowri: Yes, take another look at the
activity given below: (See Activity 6.3).

Fig. 6.3

Activity 6.3

Create a small game of spaceship, where spaceship has 5 lives. In this game,

planets are the targets and move towards the spaceship in order to destroy it.
The spaceship can fire the missiles when the space key is pressed. Spaceship
can also be moved with the help of left, right, up and down arrow keys. When
a missile hits the planet, the planet is destroyed. Every destroyed planet will

increase the scoreboard by one. Each destroyed planet increases the score
by one. When a planet hits the spaceship, one life is lost, and the planet is
destroyed. (see Fig. 6.3)

60 KVS DELHI REGION 2025