using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(FOV))]
public class EditorFOV : Editor
{
    private void OnSceneGUI()
    {
        FOV fov = (FOV)target;

        // Ensure the FOV script has access to the NPC controller
        OrcNPCController controller = (OrcNPCController)fov.Controller;

        if (controller != null)
        {
            Vector3 lastDirection = controller.LastDirection.normalized;

            // Draw the full FOV circle
            Handles.color = Color.green;
            Handles.DrawWireArc(fov.transform.position, Vector3.forward, Vector3.right, 360, fov.Radius);

            // Get the angles for the FOV
            Vector3 viewAngle01 = DirectionFromAngle(lastDirection, -fov.Angle / 2);
            Vector3 viewAngle02 = DirectionFromAngle(lastDirection, fov.Angle / 2);

            // Draw the FOV angles
            Handles.color = Color.yellow;
            Handles.DrawLine(fov.transform.position, fov.transform.position + viewAngle01 * fov.Radius);
            Handles.DrawLine(fov.transform.position, fov.transform.position + viewAngle02 * fov.Radius);

            // Draw the line representing the direction the NPC is facing
            Handles.color = Color.red;
            Handles.DrawLine(fov.transform.position, fov.transform.position + lastDirection * fov.Radius);
        }
    }

    private Vector3 DirectionFromAngle(Vector3 direction, float angleInDegrees)
    {
        // Rotate the direction vector by the given angle
        Quaternion rotation = Quaternion.Euler(0, 0, angleInDegrees);
        return rotation * direction;
    }
}