# Fixture:setGroupIndex

Available since LÖVE 0.8.0
This method is not supported in earlier versions.

Sets the group the fixture belongs to. Fixtures with the same group will always collide if the group is positive or never collide if it's negative. The group zero means no group.

The groups range from -32768 to 32767.

## Function

### Synopsis

    Fixture:setGroupIndex( group )

### Arguments

`number group`
  The group as an integer from -32768 to 32767.

### Returns

Nothing.

## See Also

- Fixture
- Fixture:getGroupIndex

##

Category:

- Functions