SCERT KERALA STD VIII Information and Communications Technology (ICT) - Chapter 04 Computer Games - Questions and Answers

Kerala Syllabus Class 8 Information and Communications Technology (ICT): Chapter 04 Computer Games - Questions and Answers

Study Notes for Class 8 Information and Communications Technology (ICT) - കമ്പ്യുട്ടർ ഗെയിമുകൾ | Text Books Solution ICT (English Medium) Chapter 04 Computer Games.  

ഈ ബ്ലോഗ് അഡ്‌മിൻറെ രേഖാമൂലമുള്ള അനുമതിയില്ലാതെ ഈ ബ്ലോഗിൽ നൽകിയിരിക്കുന്ന ചോദ്യോത്തരങ്ങൾ, ഇതേരീതിയിലോ പി.ഡി.എഫ് രൂപത്തിലോ, മറ്റേതെങ്കിലും ഡിജിറ്റലോ, പ്രിന്റഡ് ഉൾപ്പെടെയുള്ള ഏതെങ്കിലും രൂപങ്ങളിലേക്കോ മാറ്റി മറ്റൊരു വെബ്സൈറ്റിലോ, ബ്ലോഗിലോ, യുട്യൂബ്, സോഷ്യൽ മീഡിയാ ഗ്രൂപ്പുകളിലോ ഉൾപ്പെടെ ഒരിടത്തും പ്രചരിപ്പിക്കാൻ പാടില്ലാത്തതാകുന്നു.

Std 8: ICT 04: Computer Games - Questions and Answers

♦ Scratch

Scratch is a simple programming language which enables us to create animations and games. We need not type in the directions (codes) for programming, as they are given in the form of 'blocks'. In Scratch, when creating games or animations, the characters or objects that need to be included are called sprites. The stage is the background for the game to run.

♦ Let's prepare a Double Trap Shooting – Game in Scratch

♦ Game Assets

All the resources used to create and enhance the visual, auditory, and functional aspects of a game, including images, animations, sound effects, music, 3D models, and scripts, are considered game assets.

♦ Stage and Sprite

In Scratch, when creating games or animations, the characters or objects that need to be included are called sprites. Through instructions, sprites can be given movement, appearance, and sound, making them functional. The stage is the background for the game to run. By including various backdrops on the stage, the game layout can be made attractive.

♦ Let's make the background

To make the background (Backdrop) needed for the game, click on the Choose a Backdrop option in Stage and select the backdrop named Blue Sky <image>  from the Scratch library. With this, the background for the shooting range is now ready.

♦ Let's Draw and Add a Gun

To include the image (Sprite) of the gun, click the Paint option. In the Paint window, use the Rectangle tool to draw a gun. After that, give this sprite the name "gun" and set its size to 50.

♦ Let's Give Movement to the Gun

The Instructions for the Gun to Follow the Mouse Pointer

♦ To Add Balloons

• Using the "Choose a Sprite" option, try adding two balloons to the window.

• The balloon needs to change its appearance when it's hit by a bullet.

To do this, right-click on the existing balloon sprite's image in the Costume section and select "duplicate". Then, using the Reshape tool (A), change this into a bursting balloon.

♦ Variables

Variables are techniques used to temporarily store numbers, texts, etc., which are needed for a program to run and whose values can be changed.

To create variables named bullets and score in the project using the make variables option in the variables section. 

♦ Codes to Set Bullets and Score

♦ Let's Fire

In Scratch, to exchange information between one sprite and another, you can use the broadcast message block.

♦ Clones

Clone is a feature in Scratch that is used to create multiple sprites with the same characteristics.

♦ To add a sound to the bullet:

Select the bullet sprite, open the Sound window, and from the Scratch audio library, add the sound "Rip" using the "Choose a Sound" option.

♦ Codes for the Bullet

♦ Random Numbers

In Scratch, the pick random block can be used to get any value between two given values randomly. Each time the pick random function runs, it will return different values within the specified range.

♦ Code for the Balloon to Rise Randomly from Different Places

♦ Let's Complete the Coding

When the Bullet Hits, the Balloon Bursts, Causing a New Balloon to Appear.

♦ Analyse the code blocks provided below, determine the purpose of each block, and record it in the table.

1. To decrease the value of the Bullets variable by 1 each time a bullet is fired.

2. To define what the clone (bullet clone, enemy clone, etc.) should do when it is created. This block starts the behaviour of each clone separately.

3. To make the clone move forward continuously until it reaches the edge of the screen. The bullet repeatedly moves 50 steps and stops only when it touches the edge (usually followed by deleting the clone).

♦ Let’s Assess

1. Which block is used in Scratch to exchange information between two sprites?

a) Broadcast Message  

b) Create clone

c) Repeat until  

d) Forever

Answer: a) Broadcast Message  

2. What is the technique that can be used in Scratch to create more than one sprite with the characteristics of one sprite?

a) broadcast  

b) clone

c) repeat unit 1

d) point towards

Answer: b) clone

♦ Select one answer for each of the following questions. 1⁄2 score each.

1. The techniques used to temporarily store numbers, texts, etc., which are needed for a program to run and whose values can be changed:

a) Variables 

b) Sprites 

c) Costume

d) Stage

Answer: a) Variables

a) To increase the value of the 'Bullets' variable by one.

b) To decrease the value of the Bullets variable by one.

c) To give bullets variable value by one.

d) To give value to the bullets.

Answer: b) To decrease the value of the 'Bullets' variable by one.

♦ Select two answers for the following questions. 1 score each.

1. What game assets are needed to prepare a shoot game in Scratch?

a) Background for the shooting range

b) Instructions / Coding for the sprites to function correctly.

c) Folder

d) Costume

Answer: a) Background for the shooting range

b) Instructions/ Coding for the sprites to function correctly.

2. Choose the computer languages from the following?

a) Impress

b) Calc

c) Java

d) C++

Answer: c) Java, d) C++

👉Class 8 (ICT) - Chapter 03 Digital Music - Study Notes - Click here 

Disclaimer: These materials are for educational and preparation purposes only. Official textbooks belong to SCERT Kerala.