using UnityEngine;

public static class DebugUtilities
{
    /// <summary>
    /// Draws a wire sphere using Debug.DrawLine for runtime visibility.
    /// </summary>
    public static void DrawWireSphere(Vector3 center, float radius, Color color, float duration, int quality = 3)
    {
        quality = Mathf.Clamp(quality, 1, 10);
        int segments = quality << 2;
        int subdivisions = quality << 3;
        int halfSegments = segments >> 1;
        float strideAngle = 360f / subdivisions;
        float segmentStride = 180f / segments;

        Vector3 first;
        Vector3 next;

        // Draw meridians (vertical circles)
        for (int i = 0; i < segments; i++)
        {
            first = (Vector3.forward * radius);
            first = Quaternion.AngleAxis(segmentStride * (i - halfSegments), Vector3.right) * first;

            for (int j = 0; j < subdivisions; j++)
            {
                next = Quaternion.AngleAxis(strideAngle, Vector3.up) * first;
                Debug.DrawLine(first + center, next + center, color, duration);
                first = next;
            }
        }

        // Draw parallels (horizontal circles)
        Vector3 axis;
        for (int i = 0; i < segments; i++)
        {
            first = (Vector3.forward * radius);
            first = Quaternion.AngleAxis(segmentStride * (i - halfSegments), Vector3.up) * first;
            axis = Quaternion.AngleAxis(90f, Vector3.up) * first;

            for (int j = 0; j < subdivisions; j++)
            {
                next = Quaternion.AngleAxis(strideAngle, axis) * first;
                Debug.DrawLine(first + center, next + center, color, duration);
                first = next;
            }
        }
    }
}