CUSTOM BLOCKS TUTORIAL
Command to summon a custom block:
Paste this command inside a command block to summon a custom block or paste it on mcstacker.net to edit it as shown in the video.
summon item_display ~ ~-.5 ~ {Rotation:[180F,0F],Tags:["CUSTOMBLOCK1"],transformation:{left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f],translation:[0f,1f,0f],scale:[2f,2f,2f]},item:{id:"minecraft:player_head",Count:1b,tag:{SkullOwner:{Id:[I;1118312626,-1976352469,-1783681714,-8110703],Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNzZkZDc3Mjc0ZGQ1ZDRkYWMwMzhkNmViN2E2ZDlhYWMzNmExOWNlN2RkNTM0MTk2NDAyMmFmYjViNmNmZGExZSJ9fX0="}]}}}}}
Custom block spawn egg /give command:
Paste this command inside a command block and then activate it to give yourself the special custom block spawn egg. Please note:it won't work if you don't set up the line of commands shown at the bottom of this page!
give @p allay_spawn_egg{display:{Name:'{"text":"Custom Block Spawn Egg","color":"yellow","underlined":true}',Lore:['{"text":"Use to Summon","color":"#FFEE00"}','{"text":"Custom Blocks","color":"#FFEE00"}']},Enchantments:[{}],EntityTag:{id:"minecraft:snowball",Tags:["BLOCKSPAWNER1"]}} 1
Custom Block Spawn Egg mechanics commands:
Set up a line of command blocks as shown down here or in the video.
kill @e[tag=BLOCKSPAWNER1]
execute at @e[tag=BLOCKSPAWNER1] run summon item_display ~ ~ ~ {Rotation:[180F,0F],Tags:["CUSTOMBLOCK2"],transformation:{left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f],translation:[0f,1f,0f],scale:[2f,2f,2f]},item:{id:"minecraft:player_head",Count:1b,tag:{SkullOwner:{Id:[I;-502488242,-148550733,-1920890262,-699765286],Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjVjMjkzNjU4OWUxMTM1M2JjMDgyNTc1Mjg4OTNkZjhmOTNiNThiNjMyY2Q5OGE5NGI0ZmJlN2NlODM5ZDA2NyJ9fX0="}]}}}}}
execute as @e[tag=CUSTOMBLOCK2] at @s if block ~ ~ ~ air run kill @s
execute at @e[tag=BLOCKSPAWNER1] run setblock ~ ~ ~ barrier
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This small command modification allows you to add custom blocks in your vanilla Minecraft Java worlds. It was made in 1.20.1. It might or might not work in other versions.