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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…