private bool ColorIng = false;private SkinnedMeshRenderer primaryRenderer;    IEnumerator HitColor()    {        if (ColorIng)            yield break;        ColorIng = true;        Color t = primaryRenderer.material.color;        primaryRenderer.material.color = Color.red;                yield return new WaitForSeconds(0.2f);        primaryRenderer.material.color = t;        ColorIng = false;    }