using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour {

    public float xMargin = 1f;
    public float yMargin = 1f;
    public float xSmooth = 2f;
    public float ySmooth = 2f;
    public float maxY = 5;
    public float minY = -5;

    private float targetX;
    private float targetY;

    private Transform player;

    void Awake()
    {
        player = GameObject.Find("Character").transform;
    }

    void FixedUpdate()
    {
        TrackPlayer();
    }

    bool CheckXMargin()
    {
        return Mathf.Abs(transform.position.x - player.position.x) > xMargin;
    }

    bool CheckYMargin()
    {
        return Mathf.Abs(transform.position.y - player.position.y) > yMargin;
    }

    void TrackPlayer()
    {
        targetX = transform.position.x;
        targetY = transform.position.y;

        if(CheckXMargin())
        {
            targetX = Mathf.Lerp(transform.position.x, player.position.x, xSmooth * Time.deltaTime);
        }

        if(CheckYMargin())
        {
            targetY = Mathf.Lerp(transform.position.y, player.position.y, ySmooth * Time.deltaTime);
        }

        targetY = Mathf.Clamp(targetY, minY, maxY);

        transform.position = new Vector3(targetX, targetY, transform.position.z);
    }

    
}