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Scratch Syntax 2 Cmp

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Transcript

  • 1. Scratch Syntax: Part 2
    CMP
  • 2. 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.
  • 3. 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.
  • 4. 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.
  • 5. 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.
  • 6. Simple Games
    Simple games use threads and events to create new levels.
  • 7. Copter Gameā€”One Level
  • 8. Homework
    Complete the Simple Game Project
    Completed projects need to be submitted via email by the due date.