Unity Card Game Change Player Perspective

Question

I am new to C# and Unity.. I am trying to make a simple trading card game (tcg/ccg). For this first phase, I would like to make it to be played locally eg. own-self versus own-self. Would like to know how do we usually do for changing the perspective?

Eg: From the Player1's perspective as below image, once I ended my turn and pass it to player2, I would like to make it remain the same view but by showing player2's Hand card and Field card (also at the same time hide the Player1 hand card).

Below is just part of my code :

UiController.cs

   [Header("General")]
   [SerializeField] private GameObject BattleCardPrefab;

   [Header("Player Detail")]
   [SerializeField] private GameObject PlayerDeck;
   [SerializeField] private GameObject PlayerHand;

   [Header("Enemy Detail")]
   [SerializeField] private GameObject EnemyDeck;
   [SerializeField] private GameObject EnemyHand;



   private void GetUserObject(int _player)
   {
       UserDeck        = _player == 0 ? PlayerDeck.transform : EnemyDeck.transform;
       UserHand        = _player == 0 ? PlayerHand.transform : EnemyHand.transform;
   }


   public void InitDeck(int _player, List<Card> _deck)
   {
       foreach (var card in _deck)
       {
           GameObject resultCards = Instantiate(BattleCardPrefab, UserDeck);
           resultCards.GetComponent<CardDetail>().card = card;
           resultCards.GetComponent<CardDetail>().ShowCardBack(_player, resultCards, 0);
       }
   }

Player.cs

    public Player(int _playerIndex, string _deckName)
    {
        playerIndex = _playerIndex;
        deckName = _deckName;
    }

     public void GameStartSetUp(string _deckName){
      //initDeck and extra
      //blablabla
     }

BattleManager.cs

    Player player = new Player(0, "testdeck1");
    Player enemy = new Player(1, "testdeck2");

    void Start()
    {
        StartGame();
    }




    public void StartGame()
    {

        player.GameStartSetUp();
        enemy.GameStartSetUp();
    
    }

Please let me know if need more information from my side, mercy and thanks!

Answer 1

Scene Setup

Create 2 empty game objects, "Player 1 Main View" and "Player 2 Main View".

Use the following steps for both objects:

1. Parent your camera to the object and zero out the cameras position and rotation.
2. Move that object (with the camera as child) to where the camera should be.
3. Rotate the object so the camera view looks correct.
4. Unparent the camera.
5. Repeat for other views.

Code

From code we parent the camera to the appropriate view object and zero out the cameras local position and local rotation.

public Camera viewingCamera; // <- assign your camera in inspector
public Transform player1MainView; // <- assign "Player 1 Main View" object in inspector
public Transform player2MainView; // <- assign "Player 2 Main View" object in inspector

public void EnablePlayer1View()
{
    EnableView(player1MainView);

    // Hide player 2 canvas, flip over cards, etc.
    // Show player 1 canvas, show cards, etc.
}
public void EnablePlayer2View()
{
    EnableView(player2MainView);

    // Hide player 1 canvas, flip over cards, etc.
    // Show player 2 canvas, show cards, etc.
}
private void EnableView(Transform viewObject)
{
    viewingCamera.transform.SetParent(viewObject);
    viewingCamera.transform.localPosition = Vector3.zero;
    viewingCamera.transform.localRotation = Quaternion.identity;
}

To switch the view to "Player 1", call EnablePlayer1View(). For "Player 2" call EnablePlayer2View().