using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour
{
    public Transform Player;

    public Vector2 Margin;
    public Vector2 Smoothing;

    public BoxCollider2D Bounds;
    public BoxCollider2D BossBounds;

    public Vector3
        _min,
        _max;

    public bool isFollowing { get; set; }

    public void Start()
    {
        _min = Bounds.bounds.min;
        _max = Bounds.bounds.max;
        isFollowing = true;

    }

    public void Update()
    {
        var x = transform.position.x;
        var y = transform.position.y;

        if (isFollowing)
        {
            if (Mathf.Abs(x - Player.position.x) > Margin.x)
                x = Mathf.Lerp(x, Player.position.x, Smoothing.x * Time.deltaTime);

            if (Mathf.Abs(y - Player.position.y) > Margin.y)
                y = Mathf.Lerp(y, Player.position.y, Smoothing.y * Time.deltaTime);

        }

        var cameraHalfWidth = camera.orthographicSize * ((float) Screen.width / Screen.height);

        x = Mathf.Clamp(x, _min.x + cameraHalfWidth, _max.x - cameraHalfWidth);
        y = Mathf.Clamp(y, _min.y + camera.orthographicSize, _max.y + camera.orthographicSize);

        transform.position = new Vector3(x, y, transform.position.z);
    }
}