flacon.js

IDRegistry.genItemID("flacon_for_souls");
Item.createItem("flacon_for_souls", "Flacon for souls", {
    name: "flacon_for_souls"
}, {
    stack: 1
});
mod_tip(ItemID.flacon_for_souls);

IDRegistry.genItemID("flacon_with_soul");
Item.createItem("flacon_with_soul", "Flacon with soul", {
    name: "flacon_with_soul"
}, {
    stack: 1
});
mod_tip(ItemID.flacon_with_soul);

Recipes.addShaped({
    id: ItemID.flacon_for_souls,
    count: 1,
    data: 0
}, [
    " s ",
    "g g",
    " g "
], ['s', 158, -1, 'g', 20, 0]);

function createMobData(tag){
    var isListTag = !tag.getAllKeys;
    //Logger.Log('IsListTag: ' + isListTag, 'UtilsDebug');
    var mobData = isListTag ? [] : {};
    var keys = !isListTag ? tag.getAllKeys() : false;
    var length_ = keys ? keys.length : tag.length();
    if (keys != null) {
        for (var _key = 0; _key < length_; _key++) {
            var key = keys ? keys[_key] : _key;
            //Logger.Log('Key: ' + key, 'UtilsDebug');
            var keyType =  tag.getValueType(key);
            var _data = {type: keyType};
            switch (keyType) {
                case 1:
                    _data.value = Number(tag.getByte(key));
                    break;
                case 2:
                    _data.value = Number(tag.getShort(key));
                    break;
                case 3:
                    _data.value = Number(tag.getInt(key));
                    break;
                case 4:
                    _data.value = Number(tag.getInt64(key));
                    break;
                case 5:
                    _data.value = Number(tag.getFloat(key));
                    break;
                case 6:
                    _data.value = Number(tag.getDouble(key));
                    break;
                case 7:
                    _data.value = '';
                    break;
                case 8:
                    _data.value = tag.getString(key) + "";
                    break;
                case 9:
                    var listTag = tag.getListTag(key);
                    if (listTag != null) {
                        _data.value = createMobData(listTag)
                    } else {
                        _data.value = [];
                    }
                    break;
                case 10:
                    var compoundTag = tag.getCompoundTag(key);
                    if (compoundTag != null) {
                        _data.value = createMobData(compoundTag)
                    } else {
                        _data.value = {};
                    }
                    break;
                case 11:
                    _data.value = '';
                    break;
            }
            //Logger.Log('Data: ' + JSON.stringify(_data), 'UtilsDebug');
            mobData[key] = _data;
        }
    }
    return mobData;
}

function createMobTag(tag_json){
    var isListTag = Array.isArray(tag_json);
    Logger.Log('IsListTag: ' + isListTag, 'UtilsDebug');
    var tag = isListTag ? new NBT.ListTag() : new NBT.CompoundTag();
    for (var key in tag_json) {
        Logger.Log('Key: ' + key, 'UtilsDebug');
        var _data = tag_json[key];
        switch (_data.type) {
            case 1:
                tag.putByte(key, _data.value);
                break;
            case 2:
                tag.putShort(key, _data.value);
                break;
            case 3:
                tag.putInt(key, _data.value);
                break;
            case 4:
                tag.putInt64(key, _data.value);
                break;
            case 5:
                tag.putFloat(key, _data.value);
                break;
            case 6:
                tag.putDouble(key, _data.value);
                break;
            case 8:
                tag.putString(key, _data.value);
                break;
            case 9:
                Logger.Log('Pushing listTag: ' + JSON.stringify(_data.value), 'UtilsDebug');
                var newTag = createMobTag(_data.value);
                Logger.Log('New listTag: ' + JSON.stringify(newTag.toScriptable()), 'UtilsDebug');
                Logger.Log('New listTag: ' + newTag, 'UtilsDebug');
                tag.putListTag(key, newTag);
                break;
            case 10:
                Logger.Log('Pushing compoundTag: ' + JSON.stringify(_data.value), 'UtilsDebug');
                var newTag = createMobTag(_data.value);
                Logger.Log('New compoundTag: ' + JSON.stringify(newTag.toScriptable()), 'UtilsDebug');
                Logger.Log('New compoundTag: ' + newTag, 'UtilsDebug');
                tag.putCompoundTag(key, newTag);
                break;
        }
    }
    return tag;
}

Item.registerNoTargetUseFunction("flacon_for_souls", function(item, _player) {
    var data = getPointed();
    if (data.entity != -1) {
        var mobData = createMobData(Entity.getCompoundTag(data.entity));
        Entity.remove(data.entity);
        var extra = new ItemExtraData();
        extra.putString("entity", JSON.stringify(mobData));
        var player = new PlayerActor(_player);
        player.setInventorySlot(player.getSelectedSlot(), ItemID.flacon_with_soul, 1, 0, extra);
    }
})

Item.registerUseFunction("flacon_with_soul", function(coords, item, block, player) {
    var extra = new ItemExtraData(item.extra);
    if (!(entityTag = createMobTag(JSON.parse(extra.getString("entity"))))) return;
    _playerActor = new PlayerActor(player);
    var newCoords = {
        x: coords.x + 0.5,
        y: coords.y + 1,
        z: coords.z + 0.5
    }
    var newEntity = Entity.spawnAtCoords(newCoords, entity.type);
    Debug.big(entityTag.toSciptable());
    Entity.setCompoundTag(newEntity, entityTag);
    _playerActor.setInventorySlot(_playerActor.getSelectedSlot(), ItemID.flacon_for_souls, 1, 0);
})