How to make entity spawn above certain block (with EntityJS)

[real jungle]

I'm trying to make thermal:blitz spawn on block aether:cold_aercloud in dimension aether:the_aether.
Here is my current code that worked (to spawn according to the standard spawn rules) until I added the startup predicate:

//startup
EntityJSEvents.spawnPlacement(event => {
    event.or('thermal:blitz',(entitypredicate, levelaccessor, spawntype, blockpos, randomsource) => {
        return levelaccessor.level.dimension == 'aether:the_aether' && levelaccessor.getBlockState(blockpos.below()).getBlock().getId() == 'aether:cold_aercloud'
    });
});

//server
EntityJSEvents.biomeSpawns(event => {
    event.addSpawn('thermal:blitz', ['#aether:is_aether'], 20, 6, 15);
});

[boreal chasm]

Once your ticket has been resolved, please close it with </ticket close:1054771505520717835> command!

[night badger]

@midnight knoll

[midnight knoll]

try event.replace instead of event.or js EntityJSEvents.spawnPlacement(event => { event.replace('thermal:blitz',"on_ground","world_surface", (entitypredicate, levelaccessor, spawntype, blockpos, randomsource) => { return levelaccessor.level.dimension == 'aether:the_aether' && levelaccessor.level.getBlock(blockpos.below()).id == 'aether:cold_aercloud' }) })

[midnight knoll]

if that doesnt work then maybe aether has some custom logic to prevent non aether mobs from spawning in the aether which would be very cursed

so far im not seeing any vanilla mobs in the dimension which makes me think this is the case

[real jungle]

that aint good 💀

[real jungle]

alright

ye it doesnt work unfortunately

its weird bc without the startup script it just spawns according to its normal rules

[midnight knoll]

yeah i'd take a look at a mod like incontrol for this in that case

if they're doing something freaky it might be your only option

[real jungle]

aight, thanks for your help

[real jungle]

its because the isValidSpawn check sends true if the block is full 💀

I think i'll need to manually change this property

[real jungle]

I love coding, spending like 6 hours to fix 1 tiny problem 😂

[midnight knoll]

oh lmao