In fact there is.

When I used the vec_rotate command it sometimes led to weird results when the second argument was a VECTOR and not an ANGLE.

Example:

The code

Code:

---

...
vec_rotate(temp, vector(angle, 0, 0));
...

---

did not work properly all the time (here "angle" is just a var), but the code:

Code:

---

ANGLE temp_ang;

...
temp_ang.pan = angle;
temp_ang.tilt = 0;
temp_ang.roll = 0;
vec_rotate(temp, temp_ang);
...

---

works. It was a little confusing at first, but it seems that the casting from VECTOR to ANGLE and back, easy as it might seem, causes internal problems.

Regards,
Gnometech

P.S.: BTW the "temp" I used above is a VECTOR variable I had to defined, it is not predefined anymore. Maybe it would be worth a suggestion to move such C-Script pre-defined things (like ENTITY* player;) into default.c