Go Back () Layers (block)

This article or section documents something not included in the current version of Scratch (3.0). It is only useful from a historical perspective. For information on the feature that replaced this one, see Go () () Layers (block).

Go Back () Layers
go back () layers
Category	Looks
Type	Stack
Introduced in	1.0
Removed in	3.0

The go back () layers block was a Looks block and a Stack block. The block changed its Sprite's layer value by the specified amount. The block normally could only move sprites back, but entering a negative number in the input resulted in the sprite being moved forward. In Scratch 3.0, it was replaced with the go [ v] () layers block, as the new block was able to move a sprite forward as well as backward.

Moving Forward Layers

Sprites could also move forward layers using this block. If a negative value was entered into the block, the sprite would move forward the specified number of layers. For example, go back (3) layers moved the sprite back 3 layers, but go back (-3) layers moved the sprite forward 3 layers.

Example Uses

As this block changed its sprite's layer value, it was used whenever a sprite's layer value must be changed, whether forward or backward. Some common uses were:

• Moving sprites in 3-dimensional scenes and animations
• Making a sprite go behind another sprite
• Stacking sprites on top of each other (from a bird's eye view)

This block was often used in conjunction with the Go to Front block to move a sprite to a specific layer. For example,

go to front
go back (5) layers

moved a sprite to the 6th layer from the front.

Workaround

This can be replicated with the block that replaced it:

go [backward v] () layers

or

go [forward v] ((. . .::grey) * (-1)) layers

or

go [forward v] ((0) - (. . . :: grey)) layers

See Also

• Go to Front
• Layer
• Go () () Layers