Scratch Syntax 2 Cmp

Scratch Syntax: Part 2
CMP

Variables
In programming, a variable is a placeholder for some value, much like x and y are popular variables in algebra.
In Scratch, variables are represented with blocks shaped like elongated circles, uniquely labeled by you.

Threads
In programming, a thread is like a mini-program within a program that can execute at the same time as other threads.
In Scratch, any block whose label begins with "when" essentially demarks the start of a thread.

Events
An event is a signal from one thread to another.
Blocks whose labels begin with "broadcast" signal events whereas blocks whose labels begin with "when" handle events.

Simple Games
Simple games use threads and events to create new levels.

Copter Game—One Level

Homework
Complete the Simple Game Project
Completed projects need to be submitted via email by the due date.

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Scratch Syntax 2 Cmp

by Patrick Woessner on Nov 09, 2009

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Scratch Syntax 2 Cmp — Presentation Transcript