シューティングゲーム作成⑥（タイトル/背景画像/エフェクトの追加）

// Assets/Scripts/Data/WaveBackgroundData.cs
[CreateAssetMenu(fileName = "WaveBackgroundData", menuName = "Game/Wave Background Data")]
public class WaveBackgroundData : ScriptableObject
{
    public List backgroundSprites;
}

// Assets/Scripts/Editor/BackgroundImporter.cs
var fileName = cols[3].Trim(); // 4列目がファイル名
var sprite = Resources.Load("Sprites/backgrounds/" + fileName.Replace(".png", ""));
if (sprite != null) backgroundData.backgroundSprites.Add(sprite);

// Assets/Scripts/WaveManager.cs (Start)
if (BackgroundManager.Instance != null)
{
    BackgroundManager.Instance.ChangeBackgroundForWave(1);
}

// Assets/Scripts/WaveManager.cs (WaveClearSequence 内)
int nextWave = currentWave + 1;

if (BackgroundManager.Instance != null)
{
    BackgroundManager.Instance.ChangeBackgroundForWave(nextWave);
}

// Assets/Scripts/BackgroundManager.cs
public void ChangeBackgroundForWave(int waveIndex)
{
    int dataIndex = waveIndex - 1;
    Sprite nextSprite = backgroundData.backgroundSprites[dataIndex];
    if (nextSprite != null && currentRenderer.sprite != nextSprite)
    {
        StartCoroutine(FadeRoutine(nextSprite));
    }
}

private IEnumerator FadeRoutine(Sprite nextSprite)
{
    transitionRenderer.sprite = nextSprite;
    transitionRenderer.color = new Color(1, 1, 1, 0);

    float timer = 0f;
    while (timer < fadeDuration)
    {
        timer += Time.deltaTime;
        float alpha = Mathf.Clamp01(timer / fadeDuration);
        transitionRenderer.color = new Color(1, 1, 1, alpha);
        yield return null;
    }

    currentRenderer.sprite = nextSprite;
    transitionRenderer.color = new Color(1, 1, 1, 0);
    transitionRenderer.gameObject.SetActive(false);
}

// Assets/Scripts/EnemyController.cs
protected virtual void Die()
{
    if (isDead) return;
    isDead = true;

    if (ScoreManager.Instance != null) ScoreManager.Instance.AddScore(scoreValue);

    if (WaveManager.Instance != null)
    {
        WaveManager.Instance.AddZakoKill();
    }

    // 撃破エフェクト（ParticleSystem）
    SpawnDeathEffect();

    // 文字エフェクト（"滅"）
    if (defeatTextPrefab != null)
    {
        Instantiate(defeatTextPrefab, transform.position, Quaternion.identity);
    }

    Destroy(gameObject);
}

// Assets/Scripts/EnemyController.cs
private void SpawnDeathEffect()
{
    if (deathEffectPrefab == null) return;

    var ps = Instantiate(deathEffectPrefab, transform.position, Quaternion.identity);

    // 色合わせ（必要ならTintに追従）
    Color c = matchSpriteColor && spriteRenderer != null ? spriteRenderer.color : effectColor;
    var main = ps.main;
    main.startColor = c;

    ps.Play();
    Destroy(ps.gameObject, main.startLifetime.constantMax + main.duration + 0.2f);
}

// Assets/Scripts/BossController.cs
protected override void Die()
{
    if (isDead) return;
    isDead = true;

    if (ScoreManager.Instance != null)
    {
        ScoreManager.Instance.AddScore(scoreValue * 2);
    }

    if (WaveManager.Instance != null)
    {
        WaveManager.Instance.OnBossDefeated();
    }

    // 文字エフェクト（"封"）
    if (defeatTextPrefab != null)
    {
        Instantiate(defeatTextPrefab, transform.position, Quaternion.identity);
    }

    Destroy(gameObject);
}

// Assets/Scripts/OneShotSpriteEffect.cs
void Update()
{
    timer += Time.deltaTime;
    transform.position += Vector3.up * moveSpeedY * Time.deltaTime;

    if (fadeOut && spriteRenderer != null)
    {
        float alpha = Mathf.Lerp(startColor.a, 0f, timer / lifetime);
        spriteRenderer.color = new Color(startColor.r, startColor.g, startColor.b, alpha);
    }

    if (timer >= lifetime)
    {
        Destroy(gameObject);
    }
}