using UnityEngine;
using Cinemachine;

public class EdgePanningController: MonoBehaviour
{
    public CinemachineFreeLook virtualCamera;
    private CinemachineCameraOffset cameraOffset;

    public float edgeThreshold = 50f; // Edge detection distance
    public float panSpeed = 0.1f; // How much to offset per frame

    private Vector3 defaultOffset;

    private void Start()
    {
        cameraOffset = virtualCamera.GetComponent<CinemachineCameraOffset>();
        defaultOffset = cameraOffset.m_Offset; // Store default offset
    }

    private void Update()
    {
        Vector3 newOffset = defaultOffset;
        Vector3 mousePos = Input.mousePosition;

        float screenWidth = Screen.width;
        float screenHeight = Screen.height;

        // Left Edge
        if (mousePos.x <= edgeThreshold) newOffset.x -= panSpeed;
        // Right Edge
        if (mousePos.x >= screenWidth - edgeThreshold) newOffset.x += panSpeed;
        // Bottom Edge
        if (mousePos.y <= edgeThreshold) newOffset.y -= panSpeed;
        // Top Edge
        if (mousePos.y >= screenHeight - edgeThreshold) newOffset.y += panSpeed;

        // Smooth transition
        cameraOffset.m_Offset = Vector3.Lerp(cameraOffset.m_Offset, newOffset, Time.deltaTime * 5f);
    }
}