Спавн блоков на поверхности земли

import { world, system } from "@minecraft/server";

let active = false;
const block = "minecraft:gold_block";
const radius = 10;
const tag = "replace";

function checkMob() {
    const mobs = world.getDimension("overworld").getEntities({ tags: [tag] });
    return mobs.length > 0;
}

function placeBlocks() {
    if (!checkMob()) {
        active = false;
        return;
    }

    const dimension = world.getDimension("overworld");
    const players = world.getAllPlayers();
    const mobs = dimension.getEntities({ tags: [tag] });
    const targets = [...players, ...mobs];

    for (const target of targets) {
        const { x, z } = target.location;
        const angle = Math.random() * Math.PI * 2;
        const distance = Math.random() * radius;
        const targetX = x + Math.cos(angle) * distance;
        const targetZ = z + Math.sin(angle) * distance;

        for (let y = 320; y >= -64; y--) {
            const ground = dimension.getBlock({ x: targetX, y, z: targetZ });
            if (ground?.typeId === "minecraft:grass_block" || ground?.typeId === "minecraft:dirt") {
                const air = dimension.getBlock({ x: targetX, y: y + 1, z: targetZ });
                if (air?.typeId === "minecraft:air") {
                    air.setType(block);
                    break;
                }
            }
        }
    }
}

system.runInterval(() => {
    if (checkMob() && !active) {
        active = true;
        system.runInterval(placeBlocks, 1 * 20);
    }
    else if (!checkMob() && active) {
        active = false;
    }
}, 20);