A helper for CompositeCollider2D (using PolygonCollider2D) to create circle polygon

PolygonCollider2DHelper.cs

//CompositeCollider2D can use only BoxCollider2D and PolygonCollider2D.
//This script helps your projects to use circle for CompositeCollider2D through creating circle polygon and setting it to PolygonCollider2D.
//Attach this to the GameObject, insert radius and number of points and click "Create Circle Polygon".

using UnityEngine;
#if UNITY_EDITOR
using UnityEditor;
#endif
[RequireComponent(typeof(PolygonCollider2D))]
public class PolygonCollider2DHelper : MonoBehaviour
{
    private PolygonCollider2D PolygonCollider2DRef;
    
    void Start(){}

    void Update(){}
    
    public void SetCirclePolygon(float radius, int resolution)
    {
        PolygonCollider2DRef = GetComponent<PolygonCollider2D>();
        Vector2[] points = new Vector2[resolution];
        for(int i = 0; i < resolution; i++)
        {
            Vector2 v = new Vector2(0, radius);
            Quaternion q = Quaternion.AngleAxis((360f / resolution) * i, Vector3.forward);
            points[i] = q * v;
        }
        PolygonCollider2DRef.points = points;
    }
}

#if UNITY_EDITOR
[CustomEditor(typeof(PolygonCollider2DHelper))]
public class EditorPolygonCollider2DHelper : Editor
{
    [SerializeField]
    float radius;
    [SerializeField]
    int resolution;
    public override void OnInspectorGUI()
    {
        radius = EditorGUILayout.FloatField("Radius:", radius);
        resolution = EditorGUILayout.IntField("Number of points:", resolution);
        if (GUILayout.Button("Create Circle Polygon"))
        {
            ((PolygonCollider2DHelper)target).SetCirclePolygon(radius, resolution);
        }
    }
}
#endif