Default value
0
Deprecated
The bound_x/y vars aren’t exactly deprecated, but it’s preferable to use icon_w/z or pixel_w/z instead. Best practice is to avoid bound_x/y altogether, and use bound_width/height alone to define a bounding box. New behavior simply subtracts bound_x/y from pixel_w/z to mimic the old usage.
This var defines the left side of the physical atom’s bounding box, in pixels. By default all atoms are assumed to be one tile in physical size.
The left edge of the bounding box starts bound_x pixels inward from the left edge of the atom’s icon (as affected by step_x). A bound_x value of 4 means the atom has 4 pixels of empty space to its left.
Example: A 16×16 smiley face centered in a 32×32 icon should have a bound_x value of 8, since there are 8 pixels of empty space to the left.