camera_follow.js

#pragma strict

var target : Transform;		// Reference to the Objects transform.
var targetBody: Rigidbody2D;

var distance: float = 3.0;
var height: float = 3.0;
var width: float = 3.0;
var damping: float = 5.0;

var zoomSpeed: float = 1;
var zoomMax: float = 10;
var zoomMin: float = 5;

var zooming: boolean;
var thisCamera: Camera;
var isMain: System.Boolean;

private var cameraMin: Vector2 = new Vector2(-26, -26);
private var cameraMax: Vector2 = new Vector2(26, 26);

private var tLerp: float = 0;
private var tLerp2: float = 0;

private var halfH: float;
private var halfW: float;

function Start(){
  if (isMain){
    var windBlow = gameObject.AddComponent(AudioSource);
    windBlow.clip = GameSounds.current.windBlow;
    windBlow.volume = GameSounds.current.volumeOf("windBlow");
    windBlow.loop = true;
    windBlow.Play();
  }
}

function Update(){
  tLerp += Time.deltaTime * zoomSpeed;
  tLerp2 += Time.deltaTime * damping;

  if (zooming){
    var zoom = Mathf.Clamp(targetBody.velocity.magnitude * 2, zoomMin, zoomMax);
    thisCamera.orthographicSize = Mathf.Lerp(thisCamera.orthographicSize, zoom, tLerp);
  }

  var cheight = 2 * thisCamera.orthographicSize;
  var cwidth = cheight * thisCamera.aspect;

  halfH = cheight/2f;
  halfW = cwidth/2f;

	var wantedPosition: Vector3 = target.TransformPoint(width, height, -distance);

  if (wantedPosition.x - halfW < cameraMin.x){
    wantedPosition.x = cameraMin.x + halfW;
  }
  
  if (wantedPosition.x + halfW > cameraMax.x){
    wantedPosition.x = cameraMax.x - halfW;
  }

  if (wantedPosition.y - halfH < cameraMin.y){
    wantedPosition.y = cameraMin.y + halfH;
  }

  if (wantedPosition.y + halfH > cameraMax.y){
    wantedPosition.y = cameraMax.y - halfH;
  }

	transform.position = Vector3.Lerp(transform.position, wantedPosition, tLerp2);
}