public void LookAt(float target_x, float target_z)
{
var dz = target_z - this.z;
var dx = target_x - this.x;
if (dx == 0 && dz == 0)
{
return;
}
var nf = MathTools.Atan2ByDeg(dx, dz);
this.SetFaceTo(nf);
}