[jake13jake]

I have recently realized that gscript could also be expanded for increased functionality of this suggestion.
setshape could be expanded to have a mode for ellipses with x-radius and y-radius, or to have a mode for {x1,x2},{y1,y2}

Ellipses would be good for round arenas, or round damage fields.
Array-based coords would be good for a damaging object that moves at angles and lays damage fields around its path. Perhaps instead of {x1,x2},{y1,y2}... maybe something more like what showpoly uses. In that case I could very easily make a donut-shaped damage field.

Another good reason to have this would be for modifying the movement system to turn off players blocking on certain areas (though this is the only one that would be implemented clientside, and in which case it's doable without the event handlers, but simplified through the use of the event handlers).