Showing how to make a game in scratch. All instructions all the user to create a game of pacman

1. Learning Outcomes
• To create a game using scratch software.
• To use scripts.
• To understand basic concept in
programming.

2. Keywords
• Iteration – forever loop
• Selection – forever if
• Variables

3. Following instructions
• Backward 2
• Forward 2
• Turn 180
• Hands up
• Hands down

4. Following instructions
Forever
Backward 2
Forward 2
Turn 180
Hands up
Hands down

5. Following instructions
Forever if (my hand up)
Backward 2
Forward 2
Turn 180
Hands up
Hands down

6. Where to open the task
•P:ICT folderYear 7
ICTTopic 6 Game
onLesson 4
•Makingagame.ppt

7. Plenary
•P:ICT folderYear 7
ICTTopic 6 Game
onLesson 4
•Complete the
plenary.doc

8. Step 1
1.Delete the
cat sprite.
Right click on
the sprite and
select delete.

9. Step 2 - Changing backgrounds
1. Click on the
stage
2.Select background
Click on Edit

10. Step 3 -Adding background
colourUse the fill tool to
create the
background

11. Step 4 - Adding a grid
Use the
rectangle
tool to
create the
grid

12. Step 5 - Create a pacman sprite
1. Select the
paint new sprite
button
2. Create your pacman
2
1

13. Step 6 – adding the dot
Use the paint brush to dra
a dot in front of pacman.
This should be different
colour to the Pacman
Save your pacman by
clicking OK
3

14. Step 7 - Create a new costume
2.Click on copy to create a new costume
Click on Edit for Costume2
3. Use the erase
tool to create a
mouth
Click OK
1
2
1. Select the costume tab

15. Step 9 – creating a new sprite
Click on create new sprite
1

16. Step 10 - Create a target sprite
Draw a circle the same
colour as your
background.
Draw another circle in the
same coloured dot. (i.e
orange)

17. Step 11 - Shrink your spritesClick on the
icon to shrink
your sprite

18. Step 12 - Duplicating your
sprites

19. Step 13 - Script blocks
Create a
script for the
sprite to
change
costume.
Hint Use the
colour
coding to
help you

20. Step 14 - Scripts to control
movement of your pacman
Create a new script.
This will move the pacman
This is
the colour
of the dot
This is the
colour of
your
background

21. Step 15 - Script to control
direction
Create scripts to move
the sprite right, left, up
and down.

22. Step 16 - Make a variable
Click on
the stage
Click on
variables
Give variable
name
orangecount

23. Step 17 - Set the starting value
Add this script
to the stage

24. Step 18 - Change the variable
1.Click on
Sprite2
Add the
code to
sprite 2

25. Step 19 - Duplicate script and add
to other sprites
Right click
and click
duplicate
Drag the
duplicate to
the other
sprites

26. Step 20 - Stopping the game
Click on the stage
Create this
script
Change this to
match the
number of
oranges

27. Step 21 - Game Timer
Create a new
variable called
timer
Create this
script to set the
timer to go up
by one second
each time

28. Challenges
• Can you write short scripts to do the following:-
• 1. Reset the time to zero at the start of the
game?
• 2. Replace the Pacman in the top left hand
corner at the start of the game?
• 3. reposition Pacman to face twoards the
righthand side of the screen.
• (hint if you click on the sprite you can see the
coordinates and position.

29. Include a bonus feature
Choose new
sprite from
file
Select from
the folder
Place the
bonus symbol
on the board

30. • Create a new variable called speed
• In the stage scripts area, set the
starting value to 2
• Adjust the pacman sprite script to
• Click on bonus spite. Duplicate the
script from other sprites.
• Change the script to double the speed.
(hint set the speed variable to 4)

31. Changing the bonus sprite
Add this script
to the bonus
sprite.
Remember to change
the orange count to 5

32. Create a ‘Game Over’ screen
Create a new
background by
clicking on copy
Click on Edit on background 2
Add the text Game Over

33. Game over script
Add the final script
to the stage to
finish the game

34. plenary
• Write down what you have done today on
your game.
• Write down what scripts you have used an
try to explain how one of them works.