Added in 1.9.4
$onpoly(n1,n2,x,y,x,y,...)
Returns $true if two polygons overlap, otherwise $false.
Parameters
| Parameter | Description |
| n1 | Number of points in the first polygon. |
| n2 | Number of points in the second polygon. |
| x | First x coordinate. |
| y | First y coordinate. |
| x | Second x coordinate. |
| y | Second y coordinate. |
| ... | Additional coordinates. |