Item explode when picked up

[fringe matrix]

I want to make an item explode when picked up, I just don't know what the explode command would be

[tough wasp]

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

[indigo stump]

Paste version of pipe_bomb.js from @fringe matrix

[fringe matrix]

and also how to delete the item when picked up

[fringe matrix]

or do i just spawn tnt

and i would also need to make the event happen when the item enters the inventory if possible

[fringe matrix]

bro

[small dirge]

You cam use the server level to spawn an explosion in the item pickup event.

LevelJS has this:
https://hunter19823.github.io/kubejsoffline/1.18.2/forge/#dev.latvian.mods.kubejs.level.LevelJS?focus=methods-dev.latvian.mods.kubejs.level.LevelJS-dev.latvian.mods.kubejs.level.ExplosionJS+createExplosion(double%2Cdouble%2Cdouble)

ItemPickup Event has this method to get the level:
https://hunter19823.github.io/kubejsoffline/1.18.2/forge/#dev.latvian.mods.kubejs.item.ItemPickupEventJS?focus=methods-dev.latvian.mods.kubejs.entity.EntityEventJS-dev.latvian.mods.kubejs.level.LevelJS+getLevel()&methods-expanded=true

[fringe matrix]

I don't think i know anything said on the pages, would you mind explaining how I would integrate this code into my JS file?

I'm a complete begginer

[fringe matrix]

i have migrated to 1.20.1 now and dont really wanna open a new issue becuse it would just be a duplicate thing so im hoping for a new solution

i have edited the tags

[coarse matrix]

ItemEvents.canPickUp("kubejs:pipe_bomb", event=>{
    let {itemEntity ,itemEntity:{x, y, z}, level} = event

    //create explosion
    level.createExplosion(x, y, z)
    .explosionMode("block") //block, mob, tnt.
    .causesFire(false) // true to create fire, false to not
    .strength(3)
    .explode()
    
    //to prevent actually picking up.
    itemEntity.remove("discarded")
    event.cancel()
})

[fringe matrix]

So, if i want my server to only have it blow up so that no blocks get destroyed, how would i go about that?

Is it just setting the mode to mob

[coarse matrix]

Unfortunately, whether native explosion causes block destruction is only depending on gamerule. But we can mimic an explosion effect which causes no block destrcution. The mimic is not 100% accurate though.

const getAABBofRadius = (centerX, centerY, centerZ, radius) => {
    const [minX, minY, minZ, maxX, maxY, maxZ] = [-1, 1].map(c => [centerX, centerY, centerZ].map(n => n + radius * c)).reduce((a, b) => a.concat(b))
    const aabb = AABB.of(minX, minY, minZ, maxX, maxY, maxZ)
    return aabb
}

/**
 * 
 * @param {Internal.Level_} level 
 * @param {number} x 
 * @param {number} y 
 * @param {number} z 
 * @param {number} strength 
 */
function createPseudoExplosion(level, x ,y, z, power, exploderName){
    const aabb = getAABBofRadius(x, y, z, power * 2)
    const explosionCenter = new Vec3d(x, y, z)
    const marker = level.createEntity("marker")
    marker.setCustomName(exploderName)
    marker.spawn()
    level.spawnParticles("minecraft:explosion", false, x, y, z, 0, 0, 0, power/3, 1)
    level.runCommandSilent(`playsound minecraft:entity.generic.explode master @a ${x} ${y} ${z} 1 1`)
    level.getEntitiesWithin(aabb).forEach(entity => {
        const entityPosisition = entity.position()
        const distance = explosionCenter.distanceTo(entityPosisition)
        const normalizedVec = entityPosisition.subtract(explosionCenter).normalize()
        const exposure =
        Array.from(Array(6).keys())
        .map(n => explosionCenter.add(normalizedVec.scale(n + 1)))
        .map(vec => level.getBlock(vec.x(), vec.y(), vec.z()).blockState.air)
        .map(b => b ? 1 : 0)
        .reduce((a, b) => a + b) / 6
        const impact = (1 - distance / (2 * power)) * exposure
        const damageAmount = impact * (impact + 1) * power * 7 + 1
        entity.attack(
            entity.damageSources().explosion(marker, marker), 
            damageAmount
        )
        if(entity.alive){
            let velocity = normalizedVec.scale(exposure)
            entity.setMotion(velocity.x(), velocity.y(), velocity.z())
        }
    })
    marker.remove("discarded")
}

ItemEvents.canPickUp("kubejs:pipe_bomb", event=>{
    let {itemEntity ,itemEntity:{x, y, z}, level} = event    
    createPseudoExplosion(level, x, y, z, 3, event.item.hoverName)
    
    //to prevent actually picking up.
    itemEntity.remove("discarded")
    event.cancel()
})

[fringe matrix]

Oh nvm i forgot i had the gamerule to false so this wont be necessary, also just wanna know what does the mode change

[coarse matrix]

mob and block seems no apparent difference

[coarse matrix]

Update: it seems setting mode to none cause the explosion to stop destroying blocks.

[fringe matrix]

oh great then!

[fringe matrix]

I'm back again, the exploding's now not the problem but the fact I want to make it explode when it enters the inventory because the exact mod this is supposed to be made for doesn't trigger the event

if there is a way I would like to know, but otherwise I will be using this code for now

[coarse matrix]

There's PlayerEvents.InventoryChanged

[fringe matrix]

oh well thats a lot more simple than i thought it would be