Scratch

Lesson 5

1

Starter

1. Open the Cat Run game2. Complete the script so that:• when the cat touches the green

colour it moves back 5 steps • when the right arrow key is pressed it

turns 15 degrees to the right • when the left arrow key is pressed it

turns 15 degrees to the left

2

Objective of the lessonMove a sprite using the keyboard

• All of you will:

– Make a sprite turn and move using the keyboard

• Most of you will:

– Understand the X and Y positions and use them to control a sprite to write your name

• Some of you will:

– Make a game using two methods to move the sprites

3

X and Y

X is about the left and right position

Y is about the up and down position

4

X = -240 X = 240

Y = 180

Y = -180

X and Y

Where would X = 0 and Y = 0 be on the box below?

5

X = -240 X = 240

Y = 180

Y = -180

Here, in the centre

X and Y

Where would X = 240 and Y = 0 be on the box below?

6

X = -240 X = 240

Y = 180

Y = -180

Here

X and Y

Where would X = -100 and Y = 180 be on the box below?

7

X = -240 X = 240

Y = 180

Y = -180

Here

X and Y

Where would X = 120 and Y = -100 be on the box below?

8

X = -240 X = 240

Y = 180

Y = -180

Here

Pen game• Open the Pen game.

• Complete the scripts so that when the other arrow keys are pressed they move the sprite in the correct direction.

• Test it out by clicking on the green flag and try to write your name.

9

Bat game• Create a new game;

change the background and delete the cat sprite.

• Add the Bat sprite and import a second costume showing the bat with its wings in a different position.

10

Add the script

• When the green flag is clicked, make the bat change costume every 0.25 seconds.

• When the arrow keys are pressed then make the bat move in that direction.

11

What will this script do?

• Add a sprite of your choice and the script as shown.

• Alter the script so that your new sprite will point towards the bat before it starts moving.

12

Over to you…

• Try to think of different ways you could make your game more exciting.

• Try out each others’ games and decide what makes a good game.

• Why are some games better than others?

13

What skills have you practiced today?

New skills you have learnt today…

14

Revisit skills from another lesson…