v2_angle_between
v2_angle_between(x0, y0, x1, y1) ⇒ number
Kind: global function
Returns: number - in radians
| Param | Type | Description |
|---|---|---|
| x0 | number | first vector X |
| y0 | number | first vector Y |
| x1 | number | second vector X |
| y1 | number | second vector Y |