There are 11 Stack blocks in this category.
According to the Scratch Statistics, this is the least used category, with only over 2,000 uses.
- Stamp the sprite
- Put the pen down
- Release the pen
One example of a one sprite one script project is a simple drawing program.
Pen Blocks can also used to make Games and Simulations, as well as other things.
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Scratch 2.0 has the following 11 Pen Stack blocks:
set pen color to [#F3A533]
change pen color by (10)
set pen color to (0)
change pen shade by (10)
set pen shade to (50)
change pen size by (1)
set pen size to (1)
The pre-alpha of Scratch 2.0 from Scratch Day @ MIT 2011 additionally had the following Pen Stack block:
Suggested Pen Blocks
<pen down?> (pen color:: pen) (pen shade:: pen) (pen size:: pen) switch to canvas: [canvas1 v] ::pen //allows switching to a particular canvas for editing clear [canvas1 v] ::pen //clears selected canvas (also includes options all and current) show canvas [canvas1 v] ::pen //would display selected canvas (also includes options all and current) hide canvas [canvas1 v] ::pen //would stop displaying selected canvas (also includes options all and current) bring [canvas1 v] to front ::pen //would shift the selected canvas to the front(also includes options current) move [canvas1 v] to layer (1 v) ::pen //would reorder the canvases (also includes options current)
These are wanted by many Scratchers, as they would make programming much easier. The first would return the Boolean value of true if the pen is down. The second would return the pen color value; the third, the pen shade value; the last, the pen size value. Some Scratch Modifications have at least one of these. Workarounds are possible by maintaining variables to that keep up with these values and updating them whenever the pen state/color/size/shade are changed, possibly by leaving a separate script running that alters the pen when the variables are changed, and only modify the variables in other scripts instead of changing the pen attributes directly. Pen canvases would be independent from each other allowing them to be modified without affecting the others.
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