Adding cooldown to entity spawn

[timid nimbus]

Hey im using this script to spawn a wandering trader dropping a stone in to the water:

EntityEvents.spawned('minecraft:item', event => {
    const { entity, level, server } = event
    if (entity.item.id != 'minecraft:stone')return 
    const uid = entity.uuid

    server.scheduleInTicks(40, () => {
        const item = level.getEntity(UUID.fromString(uid))
            if(item === null)return
        const x = item.x
        const y = item.y
        const z = item.z

        if(level.getBlock(x, y, z).id == 'minecraft:water'){
            const wanderingTrader = level.createEntity('minecraft:wandering_trader')
            wanderingTrader.setPosition(x, y + 1, z)
            wanderingTrader.spawn()
            item.item.shrink(1)
            console.log(`Wandering Trader spawned at (${x.toFixed(0)}, ${(y + 1).toFixed(0)}, ${z.toFixed(0)}) in water`);
        }
    })
})

is it possible to add cooldown so players do not spam this?

[cunning bolt]

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

[stone belfry]

you want the cooldown for each player, or globally?

[timid nimbus]

globally if possible

and if you dont mind, maybe tell me how to add it per player so i do not have to create a new support ticket in the future XD

[stone belfry]

1. read the persistent data(if precent) and compare with server tick count now
2. store the server.tickCount in server persistent data

there's player persistentData and player.age as well

you can get the player from entity.thrower iirc

[timid nimbus]

cool, let me try, thanks ❤️

[worthy cedar]

➤ Rad

[➤](#1232006615327314010 message)
Can be used to nuke the loop(for example, hurt → attack →hurt...), or set a cooldown for a script.
Though the performance boost is neglectable, it can help throttling the script.

Function, put it in server scripts, can be in a seperate file.

General throttle:

const throttle = (temp => (tick) => {
    const now = Utils.server.tickCount;
    if (!temp[tick] || now - temp[tick] >= tick) {
        temp[tick] = now;
        return false;
    }
    return true;
})({});

Entity-specific throttle:

const throttle = (temp => (entity, tick) => {
    const now = Utils.server.tickCount;
    const uuid = entity.uuid;
    if(!temp[uuid] || now - temp[uuid] >= tick) {
        temp[uuid] = now;
        return false;
    };
    return true;
})({});

**Example: **

EntityEvents.hurt(["minecraft:snow_golem", "minecraft:iron_golem"], e => {
    if(throttle(30)) return; //30 ticks

    if(!e.source.getImmediate() || !e.source.getImmediate().isPlayer()) return;
    e.entity.attack(e.source.getImmediate(), 10); //Without throttling, this will cause loop
});

[stone belfry]

theres a function you can use