- This article is about the block. For more information on the value this block reports, see Mouse X (value).
| Mouse X | |
mouse x | |
| Category | Sensing |
| Type | Reporter |
The Mouse X block is a Sensing block and a Reporter block. The block holds (reports) the mouse-pointer's current Mouse X.
 Note: | This block will report -240 or 240 if the mouse is to the left or right of the stage. |
Example Uses
As this block reports where the mouse-pointer's current location, it is useful in sensing things with the mouse.
Some common uses for the Mouse X block are:
- Performing a different action depending on where the mouse is:
when [space v] key pressed if <(mouse x) > [100]> then repeat (10) change [ghost v] effect by (10) end wait (1) secs clear graphic effects else change y by (50) wait (0.5) secs change y by (-50) end
- Creating a virtual slider:
forever if <mouse down?> then set x to (mouse x) end end
- Determining the mouse's location with the Mouse Y block:
forever say (join (mouse x) (join [, ] (mouse y)))
- Snapping to a Grid
when green flag clicked forever set x to ((round ((mouse x)/(tile length))) * (tile length)) set y to ((round ((mouse y)/(tile height))) * (tile height))
Workaround
- Main article: List of Block Workarounds
This block can be replicated with a sprite dedicated to finding the X position of the mouse:
forever go to (mouse-pointer v) set [Mouse X v] to (x position)
