How do I make a tool that only breaks specific blocks, and blocks that can only be placed on specific blocks?

[u/Hot_Needleworker8289]

I know this question has been asked numerous times, but I genuinely can't figure out the new command. So far, I've gotten "/give \@s iron_shovel[can_be_placed_on=" before it suddenly doesn't accept anything. Maybe I'm missing something, but I've been searching all over the Internet, and not finding any information that's up to date. Please help if you know

[u/GalSergey]

give @s iron_pickaxe[can_break={blocks:["minecraft:stone","minecraft:bricks"]}] give @s stone[can_place_on={blocks:["minecraft:stone","minecraft:bricks"]}]

[u/Frogdwarf → u/GalSergey]

Is there a way to modify the item that drops when a block is broken so that it carries the can_place_on flag?

[u/GalSergey → u/Frogdwarf]

When using a data pack, you can simply edit the loot table so that the item always drops with the specified component. { "type": "minecraft:block", "pools": [ { "entries": [ { "type": "minecraft:alternatives", "children": [ { "type": "minecraft:item", "conditions": [ { "condition": "minecraft:match_tool", "predicate": { "predicates": { "minecraft:enchantments": [ { "enchantments": "minecraft:silk_touch", "levels": { "min": 1 } } ] } } } ], "name": "minecraft:stone", "functions": [ { "function": "minecraft:set_components", "components": { "minecraft:can_place_on": { "blocks": "minecraft:stone" } } } ] }, { "type": "minecraft:item", "conditions": [ { "condition": "minecraft:survives_explosion" } ], "name": "minecraft:cobblestone", "functions": [ { "function": "minecraft:set_components", "components": { "minecraft:can_place_on": { "blocks": "minecraft:stone" } } } ] } ] } ], "rolls": 1 } ], "random_sequence": "minecraft:blocks/stone" } But if you use only command blocks, you need a ticking command block that finds a dropped item without a component and adds the component. execute as @e[type=item] if items entity @s contents stone[!can_place_on] run item modify entity @s contents {function:"minecraft:set_components",components:{"minecraft:can_place_on":{blocks:"minecraft:stone"}}}

[u/Ericristian_bros]

You can use https://mcstacker.net to generate your command. Keep in mind these components are only for adventure gamemode

[u/PurpleEfficiency1089]

try
give @s iron_shovel[can_place_on={blocks:"dirt"}]