Boss Spawn Sequence Part 1

Prepare for an exciting boss fight

In this article we did various things to improve our boss spawn sequence.

Spawn Manager Script Update

We added a detection to spawning the boss on a certain wave. At the same time it also instantiates the BossText prefab to display the text on the screen. This prefab is instantiated as a child of Canvas.

private void NextWave()
{
    _waveNumber++;

    if (_waveNumber == _bossWave)
    {
        GameObject newBossUIText = Instantiate(_bossUIText, _canvas.transform.position, Quaternion.identity);
        newBossUIText.transform.SetParent(_canvas.transform);
        Instantiate(_boss, _bossSpawnPos, Quaternion.identity);
    }

Boss Text Prefab

The Boss Text prefab displays a flickering “BOSS INCOMING” text on the screen. It also has a looping Alarm SFX on it self and stops the normal Background_Music for added immersion.
After a few seconds the prefab self destructs.

Boss Text Script

private float _timer = 3.5f;
private float _flicker = 0.5f;
private float _nextFlicker = 0f;
private Text _bossText;
private string _text;

//handles
private GameObject _bgm;

void Start()
{
    _bgm = GameObject.Find("Background_Music");
    _bgm.SetActive(false);

    Destroy(gameObject, _timer);
    _bossText = GetComponent<Text>();
    _text = _bossText.text;
}

void Update()
{
    if (Time.time > _nextFlicker)
    {
        _nextFlicker = Time.time + _flicker;
        if (_bossText.text == "")
        {
            _bossText.text = _text;
        }
        else
        {
            _bossText.text = "";
        }
    }
}