Unity Smooth 2D Camera following - Huge Issue :( - unity3d

Question

As you can see in the topic - I have a camera problem. I use a script (you can see below) and I have something like this - http://rapidgamesstudio.com/games/diggermachines/
What I want to achieve is a smooth following camera to player.
I've tried everything. I have about 50-60 fps and still this bug occures.
This is my camera code:
void Update() {
if(!player)
return;
//if(!isDiggableCamera) {
Vector3 point = Camera.main.WorldToViewportPoint(player.transform.position);
Vector3 delta = player.transform.position - Camera.main.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, point.z)); //(new Vector3(0.5, 0.5, point.z));
Vector3 destination = transform.position + delta;
destination.z = transform.position.z;
transform.position = Vector3.SmoothDamp(transform.position, destination, ref velocity, dampTime);
//Vector3 destination = new Vector3(player.transform.position.x, player.transform.position.y, transform.position.z);
//transform.position = Vector3.SmoothDamp(transform.position, destination, ref velocity, dampTime);
//} else {
// startDigging(0, 0, 0);
//}
leftSite.position = new Vector3(leftSite.position.x, player.position.y, leftSite.position.z);
rightSite.position = new Vector3(rightSite.position.x,
player.position.y, rightSite.position.z);
}
I tried execute this code in Update(), FixedUpdate(), LateUpdate() even with all three - and still is the same problem.
Below code for updating player position:
//move player
float changableSpeedX = 5000.0f;
float changableSpeedY = 6000.0f;
Vector2 speed = new Vector2(x * Time.deltaTime * changableSpeedX,
y * Time.deltaTime * changableSpeedY);
//if(playerRigidbody.velocity.y + speed.y >= Game.game().activeMaxVelY)
// speed.y = Game.game().activeMaxVelY - playerRigidbody.velocity.y;
playerRigidbody.AddForce(speed);
//AddForce(speed);
//and checking max speed
protected void checkSpeed()
{
if(playerRigidbody.velocity.x > Game.game().activeMaxVelX)
playerRigidbody.velocity = new Vector2(Game.game().activeMaxVelX, playerRigidbody.velocity.y);
if(playerRigidbody.velocity.x < -Game.game().activeMaxVelX)
playerRigidbody.velocity = new Vector2(-Game.game().activeMaxVelX, playerRigidbody.velocity.y);
if(playerRigidbody.velocity.y > Game.game().activeMaxVelY)
playerRigidbody.velocity = new Vector2(playerRigidbody.velocity.x, Game.game().activeMaxVelY);
if(playerRigidbody.velocity.y < maxSpeedYGravity)
playerRigidbody.velocity = new Vector2(playerRigidbody.velocity.x, maxSpeedYGravity);
}
Could anyone help me?
If you need more code please let me know which part (because I don't want to add too much unnecessary code)

Answer 1

Might i suggest a lerp sir , in the update function use this
maincamera.transform.position = new vector3(maincamera.transform.position,player.transform.poistion,speed*Time.deltaTime);

Answer 2

Try This One !!!
private float xMax;
[SerializeField]
private float yMax;
[SerializeField]
private float xMin;
[SerializeField]
private float yMin;
private Transform target;
// Use this for initialization
void Start () {
target = GameObject.Find("Player").transform;
}
// Update is called once per frame
void LateUpdate () {
transform.position = new Vector3(Mathf.Clamp(target.position.x, xMin, xMax), Mathf.Clamp(target.position.y, yMin, yMax),transform.position.z);
}
}