Scratch lesson 3

• Computing
• Lower Secondary (Key Stage 3)

Student Voice

Student Voice Questions Explained

Link

Click the link to complete the survey:

Student Survey Link

Do Now: Define the term collision.

Extension

https://www.keybr.com/

Do Now answer

Collision detection concerns the detection of collisions between objects in a game.

It is used to stop sprites going through the map, players or other objects. 

Lesson objectives 

Conquer: Understand the concept of collision in a game

Aspire Higher: Utilize this understanding to manipulate collision to create a maze.

 

 

Aspire: Create a set of loops to make a program more efficient.

What is a sprite?

A sprite is an image or set of pixels that can be manipulated using code or code blocks.

• A sprite is traditionally the main playable character in a game.

Creating 2 player pong

• We are now going to use the skills we have developed over the past 3 weeks to create a 2 player pong game. 

Lets get started

I have created a template for you to use. 

Click here

Your first task is to add movement to the paddles. 

We only want them to move up and down, not left or right. 

 

Dont use this

Use this

Give students time to work on this.

Code on each paddle should be 

Press key to move

Change Y by +10 for up or -10 for down. 

You will need this set of code for both paddles.

Add this to your ball sprite.

What is a sprite?

1. A set of pixels controlled by the user.
2. A non player character
3. An image.
4. The code to move a character.

What is collision?

1. A set of pixels controlled by the user.
2. A non player character
3. A boundary in the game
4. The code to move a character.

Which code moves the player forward?

1. 
2. 
3. 
4. 

Which color is used for movement code?

1. Orange
2. Red
3. Blue
4. Pink