using UnityEngine;

public static class DistanceESP
{
    public static void DrawDistance(Vector3 localPlayerPos, Vector3 targetPos, float boxX, float boxY, float boxWidth, float boxHeight)
    {
        // Calculate Euclidean distance in 3D world space
        float distance = Vector3.Distance(localPlayerPos, targetPos);

        string text = $"[{Mathf.RoundToInt(distance)}m]";
        GUIContent content = new GUIContent(text);
        
        GUIStyle distStyle = new GUIStyle(GUI.skin.label)
        {
            alignment = TextAnchor.MiddleCenter,
            fontSize = 10,
            fontStyle = FontStyle.Normal
        };
        distStyle.normal.textColor = new Color(0.85f, 0.85f, 0.85f, 0.9f);

        Vector2 size = distStyle.CalcSize(content);
        float posX = boxX + (boxWidth * 0.5f) - (size.x * 0.5f);
        float posY = boxY + boxHeight + 2f;

        // Shadow + Label
        GUI.color = Color.black;
        GUI.Label(new Rect(posX + 1, posY + 1, size.x, size.y), content, distStyle);
        GUI.color = Color.white;
        GUI.Label(new Rect(posX, posY, size.x, size.y), content, distStyle);
    }
}

Mathf.RoundToInt()