Hello, Im solving problem to snap physics object.roll to mouse speed. Im using this:

*****
...
ground = ent_create ("ground.mdl", vector(0,0,50), null);
phent_settype ( ground, PH_RIGID,PH_POLY);
phent_setmass( ground, 100, PH_POLY);.
...
main...
ground.roll = mickey.x;
***
and it doesnt work. I need to control object and physics and hull type must work as PH_POLY. Please help me to solve it