Try...

Code:
VECTOR move_vec;

move_vec.x = (key_q - key_e)*2*time;
move_vec.y = (key_q - key_e)*2*time;
player.pan += (key_a - key_d)*4*time;
ent_move(move_vec,NULLVECTOR);


...but I'm not sure. You should give lite-c a try^^