Thanks...it's a cool snippet and I could translate it to c-script! Though it diden't solve my issue...the way I'm tracing probable causes the problem...

I post some more code here...hoping for a solution
Code:

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function ang_lerp(&resultVec,&srcVec,&destVec,blendFactor)
{
	var lerp_vec_ang[3];
	
	vec_set(resultVec, srcVec);                  // Copy source into result
	vec_diff(lerp_vec_ang.pan, destVec, resultVec);  // Difference vector
	
	lerp_vec_ang.pan = ang(lerp_vec_ang.pan);        // Adjust angle validity
	lerp_vec_ang.tilt = 0;//ang(lerp_vec_ang.tilt);
	lerp_vec_ang.roll = 0;//ang(lerp_vec_ang.roll);
	
	vec_scale(lerp_vec_ang.pan, blendFactor);      // Interpolate the rotation
	vec_add(resultVec, lerp_vec_ang.pan);            // Apply interpolated angle
	
	return(resultVec);                           // Return result angle
}

function trace_angle(dist,ang_dist)
{
	my.check_x = my.x + fcos(my.pan+ang_dist,dist);
	my.check_y = my.y + fsin(my.pan+ang_dist,dist);
	my.check_z = my.z + 10;
	
	return(c_trace(my.x,my.check_x,ignore_me + ignore_passable + ignore_passents + ignore_sprites));
}

function avoid_obstacle(&vec)
{
	var face_pos[3];//used to set position then distance
	
	var dist1;
	var dist2;
	
	var dist3;
	
	var turn_state;
	turn_state = 0;
	
	// this is for normal turning to the player	  
	if(turn_state == 0){
		vec_diff(face_pos,my.x, vec.x);	
		
		dist1 = trace_angle(my.obj_avoid_trace_dist,-my.obj_avoid_ang_dist); // right angle checking
		dist2 = trace_angle(my.obj_avoid_trace_dist,my.obj_avoid_ang_dist);  // left angle checking
		
		if(dist1 == 0 && dist2 == 0){
			dist3 = (c_trace(vector((my.x + cos(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),(my.y + sin(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),my.z + (my.max_z)),vector((my.x + cos(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),(my.y + sin(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),my.z - (my.max_z + (my.max_z/1.5))),ignore_me + ignore_passable + ignore_passents + ignore_sprites + use_box));
			
			vec_diff(temp,vector((my.x + cos(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),(my.y + sin(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),my.z + (my.max_z)),vector((my.x + cos(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),(my.y + sin(my.pan) * (my.max_x + (my.obj_avoid_trace_dist/2))),my.z - (my.max_z + (my.max_z/1.5))));//store difference of distance in temp
			
			
			if(dist3 > (my.max_z * 2) && normal.z < 0.8 || normal.z > 1.2){
				if (my.f_animblend != f_stand)
				{
					my.f_blendframe = f_stand;
				}	
				my.speed_x = 0;
			}
			if(dist3 > ((my.max_z - my.min_z)/4) && dist3 < ((my.max_z - my.min_z)/2.75) && you != player){
				jumping();
			}
		}
	}
	
	// alter states if dist1 or dist2 returns > 0	  	  
	if(dist1 > 0 && turn_state == 0){turn_state = 1;}
	if(dist2 > 0 && turn_state == 0){turn_state = 2;}
	

	if(turn_state == 1){
		dist1 = trace_angle(my.obj_avoid_trace_dist,my.obj_avoid_ang_dist);
		vec_diff(face_pos,my.x,my.check_x);
		if(dist1 == 0){turn_state = 0;} // back to normal state
	}
	
	if(turn_state == 2){
		dist1 = 0;
		dist2 = trace_angle(my.obj_avoid_trace_dist,-my.obj_avoid_ang_dist);
		vec_diff(face_pos,my.x,my.check_x);
		if(dist2 == 0){turn_state = 0;} // back to normal state
	}
	
	//do the turning
	vec_to_angle(temp.pan, face_pos.x);   // Angle from me to you
	ang_lerp(my.ang_force_pan, my.pan, temp.pan, 0.8 * time_step);      // Turn to you softly
	

}
  

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The "my.ang_force_pan" is then used in c_rotate of the enemy action