Unity 2D Game Camera control (horizontal, vertical, character centered in three modes)

do 2D games, there are no more than three modes, one is only vertical upward, one is only horizontal direction, one is horizontal and vertical direction, I recently do a game multi-level mode, different modes have not the same camera control, according to the usual wording, perhaps a lot of people wrote three camera scripts, Now I've used an enumeration type to control three different cameras, the code:

<summary>///cameractrl///created by Wang yuting//</summary>using unityengine;using System.collections;public class Cameractrl:monobehaviour {public enum cameratype{vertical,horizontal,normal}public Cameratype cameratype;public Float damptime = 1.5f;public Transform target;//camera movement speed, initial speed clear 0 private Vector3 velocity = Vect or3.zero;//camera Singleton private static Cameractrl instance;public static Cameractrl instance {get {return instance;}} The default width of the screen is 1/100 (precompiled) #if unity_androidprivate static float devheight = 8.54f;private static float devwidth = 4.8f; #elif U Nity_iphoneprivate static float devheight = 9.6f;private static float devwidth = 6.4f; #elseprivate static float Devheight = 19.20f;private static float devwidth = 10.80f; #endif//Use this for initializationvoid awake () {instance = this;//screen adaptation float screenheight = Screen.height;//debug.log ("screenheight =" + screenheight);//this. Getcomponent<camera> (). orthographicsize = Screenheight/200.0f;float Orthographicsize =This. Getcomponent<camera> (). orthographicsize;float aspectratio = screen.width * 1.0f/screen.height;float Camerawidth = orthographicsize * 2 * aspectratio;//debug.log ("camerawidth =" + camerawidth); if (Camerawidth < DevWidt h) {orthographicsize = Devwidth/(2 * aspectratio);D ebug. Log ("New orthographicsize =" + orthographicsize); Getcomponent<camera> (). Orthographicsize = Orthographicsize;}} Update is called once per framevoid Lateupdate () {if (target) {Vector3 point = getcomponent<camera> (). Worldtoviewportpoint (target.position); Vector3 delta = target.position-getcomponent<camera> (). Viewporttoworldpoint (New Vector3 (0.5f, 0.5f, point.z)); Vector3 Destination = transform.position + delta;if (cameratype = cameratype.vertical) {//Vertical camera transform.position = Vec Tor3. Smoothdamp (Transform.position, New Vector3 (transform.position.x, DESTINATION.Y, DESTINATION.Z), ref veLocity, damptime);}                                          else if (Cameratype = = cameratype.horizontal) {//Horizontal camera transform.position = Vector3.smoothdamp (Transform.position,                                          New Vector3 (destination.x, TRANSFORM.POSITION.Y, Destination.z), Ref velocity, damptime);}                                          else if (Cameratype = = Cameratype.normal) {//unlimited camera transform.position = Vector3.smoothdamp (Transform.position, destination, ref velocity, damptime);}} else {settarget ();}} void Settarget () {target = Gameobject.findgameobjectwithtag ("Player"). Transform;}}

Unity 2D Game Camera control (horizontal, vertical, character centered in three modes)