Default value
0
This var defines the position of the atom (in pixels) relative to its tile, on the y axis. A step_y of 5 means the atom actually is shown 5 pixels north of the tile’s southern edge.
The atom’s actual bounding box may not begin at step_y, but can be set even further in via bound_y.
Example: A 16×16 smiley face centered in a 32×32 icon should have the following bounds:
- bound_x = 8
- bound_y = 8
- bound_width = 16
- bound_height = 16
For the smiley to appear at the bottom edge of the tile it is standing on, it would need a step_y value of -8. A step_y value of 8 takes it all the way to the top edge of the tile. Anything outside of the range -8 to 8 will have the atom straddling multiple turfs.