From Test-Scratch-Wiki
- The correct title of this article is Costume # (value). The change of name is due to technical restrictions.
The Costume # (or "backdrop #" for the Stage) is a local value which is set to the current costume or backdrop of the sprite (or Stage) that it is specific to. All costumes have both a name and number identifying their position in the costumes pane in the Paint Editor. The costume # value resembles the position of order the costume is in. For example, the costume at the top of the costumes pane has a value of 1 while the one below it is 2. The values are completely separate from the costume names, and often naming costumes numbers can confuse Scratch with the name and costume # value.
There is a block that reports this value for each sprite; therefore a variable can be set to a costume's number. For example:
when gf clicked forever set [variable v] to (costume #)
Related Blocks
The following blocks can be used in conjunction with this value:
— The stage monitor and reporter block of the costume # value
— Switches to a certain costume, therefore changing the costume # value
— Switches to the next available costume by changing the costume # by 1
Example Uses
This value can be used in a number of ways:
- Reporting what costume a sprite is on
- Doing an action if the costume is a certain number
- Detecting if a switch is on or off based on its appearance