131 lines
4.1 KiB
C#
131 lines
4.1 KiB
C#
using System.Collections.Generic;
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using System.Text.RegularExpressions;
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using TMPro;
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using UnityEngine;
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using UnityEngine.SceneManagement;
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using UnityEngine.UI;
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/// <summary>
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/// UserCreationScreen scene manager
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/// </summary>
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public class UserCreationScreen : MonoBehaviour
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{
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/// <summary>
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/// Maximum lenght of a username
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/// </summary>
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private const int MAX_USERNAME_LENGTH = 12;
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/// <summary>
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/// Reference to the input text field for username
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/// </summary>
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public TMP_InputField inputName;
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/// <summary>
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/// Reference to the avatar-list container
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/// </summary>
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public Transform avatarsContainer;
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/// <summary>
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/// Avatar prefab
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/// </summary>
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public GameObject avatarPrefab;
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/// <summary>
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/// List of all sprites that are supported as avatars
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/// </summary>
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public List<Sprite> sprites = new List<Sprite>();
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/// <summary>
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/// Reference to the UserList ScriptableObject
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/// </summary>
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public UserList users;
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/// <summary>
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/// Current selected avatar
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/// </summary>
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[SerializeField]
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private int selectedAvatar = 0;
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/// <summary>
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/// List of references to avatar background sprites (so we can color them nicely)
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/// </summary>
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private List<Image> avatars = new List<Image>();
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/// <summary>
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/// Start is called before the first frame update
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/// </summary>
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void Start()
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{
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for (int i = 0; i < sprites.Count; i++)
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{
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// Create instance of prefab
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GameObject instance = GameObject.Instantiate(avatarPrefab, avatarsContainer);
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// Store value of i so we can use it the callback (else it would get the value of sprites.Count)
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int x = i;
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// Add onClick callback
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instance.GetComponent<Button>().onClick.AddListener(() => UpdateAvatar(x));
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// Store reference to image for fancy coloring
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Image background = instance.GetComponent<Image>();
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avatars.Add(background);
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// Set background color
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background.color = selectedAvatar == i ? Color.blue : Color.gray;
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// Find correct component for setting the sprite
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foreach (Image img in background.GetComponentsInChildren<Image>())
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if (img != background)
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{
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img.sprite = sprites[i];
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break;
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}
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}
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}
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/// <summary>
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/// Update the current selected avatar
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/// </summary>
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/// <param name="newAvatar">Index to the new avatar in the <c>this.avatars</c> list</param>
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private void UpdateAvatar(int newAvatar)
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{
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avatars[selectedAvatar].color = Color.gray;
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selectedAvatar = newAvatar;
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avatars[selectedAvatar].color = Color.blue;
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}
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/// <summary>
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/// Check if a given string is a correct username (using Regex)
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/// </summary>
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/// <param name="username">The username to be checked</param>
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/// <returns><c>true</c> if the username was valid, <c>false</c> otherwise</returns>
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static public bool IsValidUsername(string username)
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{
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return new Regex($@"^[abcdefghijklmnopqrstuvwxyz]{{1,{MAX_USERNAME_LENGTH}}}$").IsMatch(username);
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}
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/// <summary>
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/// Create a new user
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/// (this method will be called by a button callback)
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/// </summary>
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public void CreateUser()
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{
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string username = inputName.text;
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if (IsValidUsername(username))
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{
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if (users.GetUserByUsername(username) == null)
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{
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// Create a new entry in the UserList ScriptableObject
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users.CreateAndAddNewUser(username, sprites[selectedAvatar]);
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// TODO: change scene, for now just change to StartScreen
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SceneManager.LoadScene("Common/Scenes/StartScreen");
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}
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// TODO: give more feedback to user
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// Warn user that username already exists
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else Debug.LogWarning($"Username '{username}' already exists!");
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}
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// TODO: give more feedback to user
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// Warn user that username is invalid
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else Debug.LogWarning($"Invalid username '{username}'!");
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}
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}
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