self.velocity = movelib_inertmove_byspeed(self.velocity,newvel,1000,0.1,0.9);
**/
vector movelib_inertmove_byspeed(vector vel_new, float vel_max,float newmin,float oldmax)
self.velocity = movelib_inertmove_byspeed(self.velocity,newvel,1000,0.1,0.9);
**/
vector movelib_inertmove_byspeed(vector vel_new, float vel_max,float newmin,float oldmax)