Jigsaw Block/BE


 * Block entity data
 * : The block that this jigsaw block becomes.
 * : The joint option value, either "rollable" or "aligned".
 * : The jigsaw block's name. This jigsaw block will be aligned with another structure's jigsaw block which has this value in the target tag.
 * : The jigsaw block's target pool to select a structure from.
 * : The jigsaw block's target name. This jigsaw block will be aligned with another structure's jigsaw block which has this value in the name tag.
 * : The jigsaw block's target name. This jigsaw block will be aligned with another structure's jigsaw block which has this value in the name tag.