c# - In Unity, how do I make the camera follow a character?

When my character moves, I want the camera to follow them, such that the character always stays in the middle of the view. How do I do that in Unity?

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Here's my code right now:

using UnityEngine;
using System.Collections;

public class CharacterControll : MonoBehaviour {


    public float speed = 3f;

    private Animator animator;
    private Vector2 screenSW;
    private Vector2 screenNE;
    private float wrapPadding = 1f;
    public GameObject gameObject;

    // Use this for initialization
    void Start () {

        animator = this.GetComponent ();

        screenSW = Camera.main.ScreenToWorldPoint (new Vector2(0, 0));
        screenNE = Camera.main.ScreenToWorldPoint (new Vector2(Screen.width, Screen.height));
    }

    // Update is called once per frame
    void Update () {
        float horizontalInput = Input.GetAxis ("Horizontal");
        float verticalInput = Input.GetAxis ("Vertical");


        if (horizontalInput == 0) {
            animator.speed = 0;
            animator.SetInteger("Direction", 0);
        }

        else if (horizontalInput < 0) {
            animator.speed = 3;
            animator.SetInteger("Direction", 1);
        }


        transform.Translate (Vector2.right * horizontalInput * Time.deltaTime * speed);
        transform.Translate (Vector2.up * verticalInput * Time.deltaTime * speed);

        if (transform.localPosition.x < screenSW.x - wrapPadding) {
            transform.localPosition = new Vector2(screenNE.x, transform.localPosition.y);       
        }

        else if (transform.localPosition.x > screenNE.x + wrapPadding) {
            transform.localPosition = new Vector2(screenSW.x, transform.localPosition.y);       

        }

    }

    void OnTriggerEnter2d(Collider2D other){



    }
}

Answer

Just make the main camera a child of the player object in the hierarchy, then move it to where you want it in the scene view with the translate/rotate tools. Don't make it overly complicated with code.

Or apply the same control scripts and colliders to the camera as to the player object.