This article is about the block. For more information on the value this block reports, see X Position (value).
X Position
2.0 X Position.png
Category Motion
Type Reporter

The X Position block is a Motion block and a Reporter block. The block holds its sprite's X position. This block can be displayed as a Stage monitor.

Example Uses

As this block holds its sprite's X position, it can be used when a script needs to know its sprite's X position. There are many cases of this — for example, you could use the block to detect how far left or right you are on the screen.

forever
  wait until <(x position) > [220]>
  change [Hits v] by (1)
end

Another use is setting values based on a movable slider without using Scratch's default slider — the script sets the value to the slider's X position.

set [worms v] to (x position)

Other common uses are:

  • Comparing the X position with a record to check for movement
when green flag clicked
set [x_pos prev v] to (x position)
forever
if <not <(x_pos prev) = (x position)>> then
say [My X position moved!] for (2) secs //if the x position moved, say something
set [x_pos prev v] to (x position)
end
end
  • Constantly storing a sprite's X movement so it can be re-enacted later
when green flag clicked //script only works in a sprite!
delete (all v) of [x positions v]
delete (all v) of [y positions v]
say [Move your mouse and I will reenact the movement!] for (2) secs
say [Go!] for (1) secs
repeat (50)//records 50 coordinates at a rate of one for every 0.1 seconds
add (mouse x) to [x positions v]
add (mouse y) to [y positions v]
wait (0.1) secs
end
set [counter v] to [1]
say [I will reenact it for you now!] for (2) secs
repeat (50)
go to x:(item (counter) of [x positions v]) y:(item (counter) of [y positions v])
wait (0.1) secs
change [counter v] by (1)
end

Workaround

Main article: List of Block Workarounds

The block can be simply replicated with the following block:

([x position v] of [wanted sprite v])

See Also