Placable end portals with item

[bronze briar]

If I'm in creative I can just place command bock with setblock and always active
But how can I do this in survival

[heavy narwhal]

What

[bronze briar]

for example when Im testing nether linking in creative I like to have command block with:
setblock ~ ~ ~ nether_portal set to always active in my hotbar

so I dont have to scroll for a command

but I cant place command blocks in survival

[heavy narwhal]

Right

Make a spawn egg that summons a marker with a tag, and have a ticking function or an advancement to execute as and at markers with that tag, to setblock a portal and kill the marker

[bronze briar]

I was wondering if it's possible without tick function or without a datapack
just a stand alone item

[heavy narwhal]

Repeating Command Block executing as the markers will work fine too

[bronze briar]

I meant all the logic is handeled from the item

[heavy narwhal]

No

[bronze briar]

could minecart with command block be powered upon spawning?

[heavy narwhal]

Not that I'm aware of.

[bronze briar]

ok I think im gonna try the advancement

[bronze briar]

this advancement doesnt works but function works triggered manually

{
"criteria": {
"set_portal": {
"trigger": "minecraft:using_item",
"conditions": {
"item": {
"items": "minecraft:endermite_spawn_egg",
"components": {
"minecraft:entity_data": {
"id": "minecraft:marker",
"Tags": [
"set_portal"
]
}
}
}
}
}
},
"rewards": {
"function": "blockendm:set_portal"
}
}

[bronze briar]

Which trigger should I use?

[flat hinge]

Using item should be correct

[rare mural]

I use "item_used_on_block" instead

dunno how much it differs

[pale shadow]

It won't work unless the item has a use interaction with the block already.

Besides, advancements trigger as and at the player, never at the location of the advancement.

[rare mural]

That shouldn't be an issue, they're going to do an execute at @e/@n anyways

[somber siren]

Big misconception here, advancements never run their reward function at the player

[bronze briar]

The function I wrote works
I just can't get the advancement to trigger

[somber siren]

I don't have all context here but you can use the trigger item_used_on_block or any_block_use one of these (i don't remember exactly just try which one works) will always trigger when you interact with a block and your hand swings. So placing spawn eggs can be detected with this. Alternatively you can make a scoreboard objective that tracks when you've used a spawnegg and then run your function

[rare mural]

@bronze briar Debug.
Does the spawn egg work? Does the marker spawn ? With the correct tags?
Could it be that you have the advancement granted already?
How do you know the reward command works? Does it give you any feedback, like a /say command?

[bronze briar]

The egg spawns the marker with a tag
A/function sets the portal and kills it
Lemmie get on computer and check if its already granted

[bronze briar]

andvancement is not granted and upon manually giving it the function runs correctly

[bronze briar]

item_used_on_block worked

[pale shadow]

sorry but my reward function ALWAYS runs as and at the player. I can do a predicate in the advancement on the origin which can be different context but in my reward function any command is run at the location of the player receiving the advancemnt.

[pale shadow]

I run a summon command and it will always be at my feet, not at the origin of the advancement or the world.

e.g. execution context definitely does use player position, maybe not rotation.

[noble nimbus]

execute summon interaction run tellraw @a [{translate:"Position of %s: ",with:[{selector:"@s"}]},{nbt:"Pos",entity:"@s"}]
tellraw @a [{translate:"Position of %s: ",with:[{selector:"@s"}]},{nbt:"Pos",entity:"@s"}]

see for yourself

[somber siren]

which trigger are you using? It heavily depends on the trigger

[pale shadow]

any_block_use, but i have never found a trigger where this was different for advancements

entity interaction same story

as in, if there are any that don't behave like this they are very rare

[bronze briar]

this ended up working for me

[kind musk]

i recently found out about the command generator that can generate spawn egg that can run any command when placed.. i tried it and this works.. give @p cat_spawn_egg[entity_data={id:"minecraft:falling_block",DropItem:0,BlockState:{Name:"minecraft:command_block"},TileEntityData:{Command:"summon falling_block ~ ~1 ~ {BlockState:{Name:redstone_block},Passengers:[{id:falling_block,BlockState:{Name:activator_rail}},{id:command_block_minecart,Command:\"summon minecraft:falling_block ~ ~-2 ~ {BlockState:{Name:\\\"nether_portal\\\"}}\"},{id:command_block_minecart,Command:\"setblock ~ ~1 ~ command_block{Command:\\\"fill ~ ~ ~ ~ ~-3 ~ air\\\",auto:1}\"},{id:command_block_minecart,Command:\"execute align xyz run kill @e[type=command_block_minecart,dy=0]\"}]}",auto:1}}]

this places the nether portal where the spawn egg is used

and it san be modified for any other portal

i used the falling block because the /setblock is imidietly deleted by /fill air that clears the command blocks

[bronze briar]

if you dont care abouth the block falling cant you just do this?

/give @p endermite_spawn_egg[entity_data={id:"minecraft:falling_block",BlockState:{Name:"minecraft:nether_portal"},Time:1,Tags:["set_portal"]}] 1

[kind musk]

ill test it.. im not sure

it looks like its working

[bronze briar]

yeah but it falls

[kind musk]

yap

[kind musk]

you maybe can modify the commads so it does not fill the lowes block so it uses /setblock to place it

[kind musk]

yap.. this also works XD

[bronze briar]

it palces mid air?

[kind musk]

give @p cat_spawn_egg[entity_data={id:"minecraft:falling_block",DropItem:0,BlockState:{Name:"minecraft:command_block"},TileEntityData:{Command:"summon falling_block ~ ~1 ~ {BlockState:{Name:redstone_block},Passengers:[{id:falling_block,BlockState:{Name:activator_rail}},{id:command_block_minecart,Command:\"setblock ~ ~-2 ~ end_portal\"},{id:command_block_minecart,Command:\"setblock ~ ~1 ~ command_block{Command:\\\"fill ~ ~ ~ ~ ~-2 ~ air\\\",auto:1}\"},{id:command_block_minecart,Command:\"execute align xyz run kill @e[type=command_block_minecart,dy=0]\"}]}",auto:1}}]

[kind musk]

it places it on the block where the mob would spawn from the spawn egg

nvm.. it falls down

[bronze briar]

yeah

[kind musk]

i didnt test it in the air

maybe if all of that was on something like text display

[bronze briar]

I don't see any advantages of this to just summoning falling block of choice directly

[kind musk]

this can run any command..

[bronze briar]

true

but I mean for this use case

[kind musk]

i wasnt sure if it would work.. i just shared it in case it can be useful

[bronze briar]

anyway how does execute store result storage works

im using setblock keep and want to refund the spawn egg if someone placed it on grass and such

[kind musk]

each command when its run it has some number it returns on success.. this command just saves that number to the storage so it can be used.. for example /fill returns the number of blocks that it filled and /scoreboard returns the final score after the operation

[bronze briar]

is the storage temporary?
where is it located

[kind musk]

you determine where it is located and the storage exists until its overwritten or deleted

[bronze briar]

when I reloaded the world it disapeared

[kind musk]

it shouldnt.. it is saved in world files so it is per-world storage.. it would disapear if you deleted the world and tried to make a new one

in folder of the world you have folder called data in there each storeage is saved as .dat file

sry i gtg i have to restart the comp cus of windows update

[bronze briar]

nvm its there

[bronze briar]

k

but I still dont get it
I used this:
/execute store result storage test test1 int 1 run fill -12 0 -12 -12 0 -12 air replace dirt
and regardless of success or failure this command always executes
/execute if data storage minecraft:test test1 run give @p minecraft:apple

[kind musk]

damn this updated fast.. xd

[kind musk]

yap.. when you runed the first ocmmand you created the storage and when you run the seccond command you are testing the condition if the storage location exists.. and it always exists untill you delete it.. even if the stored value is 0

run command /data get storage...

and youll see tha value stoared on that location

[bronze briar]

how can I execute base on the value

[kind musk]

execute if data storage minecraft:test {test1 :0}... this will run only if the stoared value is 0

[bronze briar]

is it only for storing numbers?

[bronze briar]

and this worked

[kind musk]

you can store ints, floats, strings, components..

[bronze briar]

what are the 'long' and 'short' suppose to repersent?

[rare mural]

Different ways to store data

You can check the wiki ofr it:
https://minecraft.wiki/w/NBT_format#Data_types

[bronze briar]

wait so it is all numbers

how do I store components and strings

[rare mural]

no, you can just store a string {string:"something"}

[bronze briar]

I couldnt with execute

[rare mural]

yea that's the limitation, execute can only get numbers

lists, strings, and such can only be accessed doing /data modify ... from ...

[bronze briar]

so for example how would I read item from component and give it to a player

if thats how you're suppose to use it

[rare mural]

You might be complicating it unnecessarily. Your objective is to refund the portal item to the player if it has placed it on non-air blocks?
It would also depend on which placing method you decided to go for

[bronze briar]

this is the function that triggers from advancement:

execute at @e[tag=set_portal] as @s run setblock ~ ~ ~ minecraft:nether_portal keep
execute as @e[tag=set_portal] run kill @s
playsound minecraft:block.stone.place block @a ~ ~ ~ 1 0.8
advancement revoke @a only blockendm:set_portal

[rare mural]

Alright, to start, if you change execute at @e[tag=set_portal] as @sto execute as @e[tag=set_portal] at @s you can check multiple marker entities at the same time

then

[rare mural]

is that what you want? a way to interrupt placing?

[bronze briar]

yes
so if you place it on the ches it stays save and you cant dispense it into bedrock to break it

[rare mural]

if you want to avoid dispensers using it, use an item_frame as base entity instead

now gimme a sec

Here's what would work for you.
Main:

advancement revoke @s only ...
# check if it has air
execute as @e[tag=set_portal] at @s unless block ~ ~ ~ air run function blockendm:items/example/interrupt

# else
execute as @e[tag=set_portal] at @s run setblock ~ ~ ~ nether_portal
kill @e[tag=set_portal]
# other effects below```
Interrupt.mcfunction:
```# kill portal
kill @e[tag=set_portal]

# give item to the player (/give or /loot)
give @p ...```

[bronze briar]

is it gonna give the egg to the placer or closest player?

[rare mural]

in this case, to the closest player

[bronze briar]

hm

[rare mural]

you can tag the player as placer and then remove the tag though

tag @s add portal_placer
execute as @e[tag=set_portal] at @s unless block ~ ~ ~ air run function siscu:items/example_egg/interrupt
tag @s remove portal_placer```

then give @p[tag=portal_placer] ...

[bronze briar]

it doesnt work if only one item is held

I think it might have not worked before that

[bronze briar]

I think using last item in a stack doesnt work with this

[bronze briar]

I think I will use falling sand spawn egg as it doesn't require datapack and is good enough