Player.dat format/Compasses


 * Optional. 1 or 0 (true/false) - true if the compass is connected to a lodestone. When false, LodestoneDimension and LodestonePos is not automatically removed when the lodestone is destroyed, but the compass still points to that location.
 * Optional. The dimension of the lodestone to which the compass is pointing.
 * Optional. The coordinates of the lodestone to which the compass is pointing.
 * x coordinate
 * y coordinate
 * z coordinate

Player.dat格式/指南针