From Test-Scratch-Wiki
The Mouse Y is where the mouse-pointer is on the Y axis (vertical) of the Stage. The value gets higher or lower depending on how far up on the Stage it is. It cannot be off the Stage; in the project editor, it caps at ±180. If the mouse moves out of the Flash player frame, this value is set to 180.
Related Block
The following block can be used in conjunction with this value:
Mouse Y — The stage monitor and reporter block that reports the value
Example Uses
Some common uses for the Mouse Y value are below:
- Sliders
In a project, if you want something to be adjustable, then you can use a slider that can be controlled using the mouse.
The slider button (the sprite that will slide back and forth) should have these scripts:
When this sprite clicked repeat until (not(mouse down)) set [main value v] to <mouse y> go to x: (180) y: (main value) end
The X position can be any value, and the main value is the value that will be controlled by the slider.
- Moving vertically
- Finding the mouse's Y position
- Mousing-over an area