using UnityEngine;

public class LineBarSpectrum : TripsitterAve {
    private LineRenderer[] _lines;

    private float AudioScale = 10;
    private float Power = 1.5f;

    public float LineWidth = 0.5f;
    public float LineSpacing = 1.0f;

    void Start() {
        LineRenderer prefab = GameObject.Find("LineBar").GetComponent<LineRenderer>();

        _lines = new LineRenderer[SpectrumSize];

        for (int i = 0; i < SpectrumSize; i++) {
            LineRenderer lineRenderer = GameObject.Instantiate(prefab);
            lineRenderer.transform.parent = transform;
            lineRenderer.material = new Material(Shader.Find("Sprites/Default"));
            lineRenderer.widthMultiplier = LineWidth;
            lineRenderer.positionCount = 2;
            _lines[i] = lineRenderer;
        }
    }

    void Update() {
        var spectrumData = GetSpectrumData();
        for (int i = 0; i < SpectrumSize; i++) {
            var line = _lines[i];
            var audioScale = Mathf.Pow(spectrumData[i] * AudioScale, Power);
            var points = new Vector3[2];
            var x = LineSpacing * i;
            points[0] = new Vector3(x, 0.0f, 0.0f);
            points[1] = new Vector3(x, audioScale, 0.0f);
            line.widthMultiplier = LineWidth;
            line.SetPositions(points);
        }
    }
}