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Snap! Reference Manual Acknowledgements 1. Blocks, Scripts, and Sprites 2. Saving and Loading Projects and Media 3. Building a Block 4. First Class Lists 5. Typed Inputs 6. Procedures as Data 7. Object Oriented Programming with Sprites 8. OOP with Procedures 9. The Outside World 10. Continuations 11. Metaprogramming 12. User Interface Elements

Appendix

Blocks

All Snap! Blocks

Motion Blocks

Looks Blocks

Sound Blocks

Pen Blocks

Control Blocks

When Green Flag Clicked when is edited when I start as a clone when I receive when key pressed when when I am broadcast broadcast and wait Warp wait secs wait until forever repeat repeat until for _ = to if if else if then else report stop run launch call pipe →tell to ask for create a clone of a new clone of delete this clone pause all ⏸switch to scene define delete block set of block to Attribute Of Block this set slot to

Sensing Blocks

Operators Blocks

Variables Blocks

forever

Runs the scripts in a loop until the stop button is clicked.

The "forever _" block

Help screen for the "forever _" block

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