# Fixture:setUserData

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

Associates a Lua value with the fixture.

To delete the reference, explicitly pass nil.

| Use this function in one thread and one thread only. Using it in more threads will make Lua cry and most likely crash. |

## Function

### Synopsis

    Fixture:setUserData( value )

### Arguments

`mixed value`
  The Lua value to associate with the fixture.

### Returns

Nothing.

## See Also

- Fixture
- Fixture:getUserData

##

Category:

- Functions