Only a small contribution... if could be useful.

This is the code I included to convert the difference between camera and player.pan into a rotating force, limited to the character._turnspeed

Code:

---

	//Only pan player when walking/attacking etc.
	if ( my._state !=0 )  
	{
		
		mPlayer_force.pan = (camera.pan - my.pan);
	
		//if difference > 180 degrees, change to turn other side.
		mPlayer_force.pan -= (abs(mPlayer_force.pan) > 180)* sign(mPlayer_force.pan)*360;
		
		//Limite to maximum entity  _turnspeed
		my._panspeed = sign(mPlayer_force.pan)*min(my._turnspeed,abs(mPlayer_force.pan))*time_step;
	}
	else
	{
		my._panspeed = 0;
	}

---

this rotating force is later used when moving the player (c_rotate)