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Introduction to Programming G50PRO
University of NottinghamUnit 3 : Introduction To Scratch 2
Paul Tennenthttp://paultennent.wordpress.com/G50PRO.html
Room C41
Agenda
Common programming elements Pseudo Code Scratch Example Scratch Demo Course work
Common programming elements:
VariablesConditional statementsLoopsEvents
PseudoCode
PseudoCode is a compact and informal high-level description of a computer program
Uses the structural conventions of a programming language
Intended for human reading rather than machine reading
Compact and easier to understand fo humans
Language-independent
Example
Cat Sprite() Loop Forever
If (user hits right) Point right
If (user hits left) Point Left
If (user hits up) Point Up
If (user hits down) Point Down
Move slowly
Try PseudoCode
Write PseudoCode to: Move a car using up arrow to increase speed and
down arrow to brake. Right and left arrows for directions.
If a wall is hit the car explodes and the car losses 1 life out of 3
Game is over if the car explodes 3 times
Who is responsible for what?
Structure your programs
Think – which sprites should be responsible for what actions?
Think – Where should your variables be defined
Example – Shooting Game
COLLISION!
Alien
-Destruction effect
Bullet
-Disappear
Add to user’s score?
Coursework
2 player car race online game The game should offer a choice of multiple
tracks. When a player reaches the finish line the
winner should be announced plus the time taken and a score.
Read the specifications on course web page
Coursework
Check Similar projects online first It is ok to reuse bits of code/ideas from other
projects. Yet DO NOT copy a project and modify it.
Make sure to include in the Report references to other projects you used in your work on
Use Project notes to include simple user Instructions
Quick Review
Create the software Design Implement Test
Write the documentation Leave plenty of time to write the report Proof read for obvious mistakes Think about the structure of your writing
Software Demonstration
Wednesday 18th February
Make sure The game is usable online (clear
instructions)
How does it look, feel?
