For this video on how to make 2048 in Unity, we will be fixing a logic error that occurs in our game after our previous lesson. We will then work on making new fill blocks instantiate after the 2048 grid is shifted.
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GameController2048.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class GameController2048 : MonoBehaviour
{
public static GameController2048 instance;
public static int ticker;
[SerializeField] GameObject fillPrefab;
[SerializeField] Cell2048[] allCells;
public static Action<string> slide;
public int myScore;
[SerializeField] Text scoreDisplay;
int isGameOver;
[SerializeField] GameObject gameOverPanel;
private void OnEnable()
{
if(instance == null)
{
instance = this;
}
}
// Start is called before the first frame update
void Start()
{
StartSpawnFill();
StartSpawnFill();
}
// Update is called once per frame
void Update()
{
if(Input.GetKeyDown(KeyCode.Space))
{
SpawnFill();
}
if(Input.GetKeyDown(KeyCode.W))
{
ticker = 0;
isGameOver = 0;
slide("w");
}
if (Input.GetKeyDown(KeyCode.D))
{
ticker = 0;
isGameOver = 0;
slide("d");
}
if (Input.GetKeyDown(KeyCode.S))
{
ticker = 0;
isGameOver = 0;
slide("s");
}
if (Input.GetKeyDown(KeyCode.A))
{
ticker = 0;
isGameOver = 0;
slide("a");
}
}
public void SpawnFill()
{
bool isFull = true;
for(int i = 0; i < allCells.Length; i++)
{
if(allCells[i].fill == null)
{
isFull = false;
}
}
if(isFull == true)
{
return;
}
int whichSpawn = UnityEngine.Random.Range(0, allCells.Length);
if(allCells[whichSpawn].transform.childCount != 0)
{
Debug.Log(allCells[whichSpawn].name + " is already filled");
SpawnFill();
return;
}
float chance = UnityEngine.Random.Range(0f, 1f);
Debug.Log(chance);
if(chance <.2f)
{
return;
}
else if(chance < .8f)
{
GameObject tempFill = Instantiate(fillPrefab, allCells[whichSpawn].transform);
Debug.Log(2);
Fill2048 tempFillComp = tempFill.GetComponent<Fill2048>();
allCells[whichSpawn].GetComponent<Cell2048>().fill = tempFillComp;
tempFillComp.FillValueUpdate(2);
}
else
{
GameObject tempFill = Instantiate(fillPrefab, allCells[whichSpawn].transform);
Debug.Log(4);
Fill2048 tempFillComp = tempFill.GetComponent<Fill2048>();
allCells[whichSpawn].GetComponent<Cell2048>().fill = tempFillComp;
tempFillComp.FillValueUpdate(4);
}
}
public void StartSpawnFill()
{
int whichSpawn = UnityEngine.Random.Range(0, allCells.Length);
if (allCells[whichSpawn].transform.childCount != 0)
{
Debug.Log(allCells[whichSpawn].name + " is already filled");
SpawnFill();
return;
}
GameObject tempFill = Instantiate(fillPrefab, allCells[whichSpawn].transform);
Debug.Log(2);
Fill2048 tempFillComp = tempFill.GetComponent<Fill2048>();
allCells[whichSpawn].GetComponent<Cell2048>().fill = tempFillComp;
tempFillComp.FillValueUpdate(2);
}
public void ScoreUpdate(int scoreIn)
{
myScore += scoreIn;
scoreDisplay.text = myScore.ToString();
}
public void GameOverCheck()
{
isGameOver++;
if(isGameOver >= 16)
{
gameOverPanel.SetActive(true);
}
}
public void Restart()
{
SceneManager.LoadScene(0);
}
}
Cell2048.cs
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Cell2048 : MonoBehaviour
{
public Cell2048 right;
public Cell2048 down;
public Cell2048 left;
public Cell2048 up;
public Fill2048 fill;
private void OnEnable()
{
GameController2048.slide += OnSlide;
}
private void OnDisable()
{
GameController2048.slide -= OnSlide;
}
private void OnSlide(string whatWasSent)
{
CellCheck();
Debug.Log(whatWasSent);
if(whatWasSent == "w")
{
if (up != null)
return;
Cell2048 currentCell = this;
SlideUp(currentCell);
}
if (whatWasSent == "d")
{
if (right != null)
return;
Cell2048 currentCell = this;
SlideRight(currentCell);
}
if (whatWasSent == "s")
{
if (down != null)
return;
Cell2048 currentCell = this;
SlideDown(currentCell);
}
if (whatWasSent == "a")
{
if (left != null)
return;
Cell2048 currentCell = this;
SlideLeft(currentCell);
}
GameController2048.ticker++;
if(GameController2048.ticker == 4)
{
GameController2048.instance.SpawnFill();
}
}
void SlideUp(Cell2048 currentCell)
{
if (currentCell.down == null)
return;
if (currentCell.fill != null)
{
Cell2048 nextCell = currentCell.down;
while (nextCell.down != null && nextCell.fill == null)
{
Debug.Log("Loop");
nextCell = nextCell.down;
}
if (nextCell.fill != null)
{
if (currentCell.fill.value == nextCell.fill.value)
{
nextCell.fill.Double();
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
}
else if(currentCell.down.fill != nextCell.fill)
{
Debug.Log("!doubled");
nextCell.fill.transform.parent = currentCell.down.transform;
currentCell.down.fill = nextCell.fill;
nextCell.fill = null;
}
}
}
else
{
Cell2048 nextCell = currentCell.down;
while (nextCell.down != null && nextCell.fill == null)
{
Debug.Log("here");
nextCell = nextCell.down;
}
if (nextCell.fill != null)
{
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
SlideUp(currentCell);
Debug.Log("Slide to Empty");
}
}
if (currentCell.down == null)
return;
SlideUp(currentCell.down);
}
void SlideRight(Cell2048 currentCell)
{
if (currentCell.left == null)
return;
if (currentCell.fill != null)
{
Cell2048 nextCell = currentCell.left;
while (nextCell.left != null && nextCell.fill == null)
{
Debug.Log("Loop");
nextCell = nextCell.left;
}
if (nextCell.fill != null)
{
if (currentCell.fill.value == nextCell.fill.value)
{
nextCell.fill.Double();
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
}
else if (currentCell.left.fill != nextCell.fill)
{
Debug.Log("!doubled");
nextCell.fill.transform.parent = currentCell.left.transform;
currentCell.left.fill = nextCell.fill;
nextCell.fill = null;
}
}
}
else
{
Cell2048 nextCell = currentCell.left;
while (nextCell.left != null && nextCell.fill == null)
{
Debug.Log("here");
nextCell = nextCell.left;
}
if (nextCell.fill != null)
{
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
SlideRight(currentCell);
Debug.Log("Slide to Empty");
}
}
if (currentCell.left == null)
return;
SlideRight(currentCell.left);
}
void SlideDown(Cell2048 currentCell)
{
if (currentCell.up == null)
return;
if (currentCell.fill != null)
{
Cell2048 nextCell = currentCell.up;
while (nextCell.up != null && nextCell.fill == null)
{
Debug.Log("Loop");
nextCell = nextCell.up;
}
if (nextCell.fill != null)
{
if (currentCell.fill.value == nextCell.fill.value)
{
nextCell.fill.Double();
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
}
else if (currentCell.up.fill != nextCell.fill)
{
Debug.Log("!doubled");
nextCell.fill.transform.parent = currentCell.up.transform;
currentCell.up.fill = nextCell.fill;
nextCell.fill = null;
}
}
}
else
{
Cell2048 nextCell = currentCell.up;
while (nextCell.up != null && nextCell.fill == null)
{
Debug.Log("here");
nextCell = nextCell.up;
}
if (nextCell.fill != null)
{
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
SlideDown(currentCell);
Debug.Log("Slide to Empty");
}
}
if (currentCell.up == null)
return;
SlideDown(currentCell.up);
}
void SlideLeft(Cell2048 currentCell)
{
if (currentCell.right == null)
return;
if (currentCell.fill != null)
{
Cell2048 nextCell = currentCell.right;
while (nextCell.right != null && nextCell.fill == null)
{
Debug.Log("Loop");
nextCell = nextCell.right;
}
if (nextCell.fill != null)
{
if (currentCell.fill.value == nextCell.fill.value)
{
nextCell.fill.Double();
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
}
else if (currentCell.right.fill != nextCell.fill)
{
Debug.Log("!doubled");
nextCell.fill.transform.parent = currentCell.right.transform;
currentCell.right.fill = nextCell.fill;
nextCell.fill = null;
}
}
}
else
{
Cell2048 nextCell = currentCell.right;
while (nextCell.right != null && nextCell.fill == null)
{
Debug.Log("here");
nextCell = nextCell.right;
}
if (nextCell.fill != null)
{
nextCell.fill.transform.parent = currentCell.transform;
currentCell.fill = nextCell.fill;
nextCell.fill = null;
SlideLeft(currentCell);
Debug.Log("Slide to Empty");
}
}
if (currentCell.right == null)
return;
SlideLeft(currentCell.right);
}
void CellCheck()
{
if (fill == null)
return;
if(up != null)
{
if (up.fill == null)
return;
if (up.fill.value == fill.value)
return;
}
if (right != null)
{
if (right.fill == null)
return;
if (right.fill.value == fill.value)
return;
}
if (down != null)
{
if (down.fill == null)
return;
if (down.fill.value == fill.value)
return;
}
if (left != null)
{
if (left.fill == null)
return;
if (left.fill.value == fill.value)
return;
}
Debug.Log("Check");
GameController2048.instance.GameOverCheck();
}
}
Fill2048.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Fill2048 : MonoBehaviour
{
public int value;
[SerializeField] Text valueDisplay;
[SerializeField] float speed;
bool hasCombine;
public void FillValueUpdate(int valueIn)
{
value = valueIn;
valueDisplay.text = value.ToString();
}
private void Update()
{
if(transform.localPosition != Vector3.zero)
{
hasCombine = false;
transform.localPosition = Vector3.MoveTowards(transform.localPosition, Vector3.zero, speed * Time.deltaTime);
}
else if(hasCombine == false)
{
if(transform.parent.GetChild(0) != this.transform)
{
Destroy(transform.parent.GetChild(0).gameObject);
}
hasCombine = true;
}
}
public void Double()
{
value *= 2;
GameController2048.instance.ScoreUpdate(value);
valueDisplay.text = value.ToString();
}
}
using Photon.Chat;
using Photon.Pun;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PhotonChatManager : MonoBehaviour, IChatClientListener
{
#region Setup
[SerializeField] GameObject joinChatButton;
ChatClient chatClient;
bool isConnected;
[SerializeField] string username;
public void UsernameOnValueChange(string valueIn)
{
username = valueIn;
}
public void ChatConnectOnClick()
{
isConnected = true;
chatClient = new ChatClient(this);
//chatClient.ChatRegion = "US";
chatClient.Connect(PhotonNetwork.PhotonServerSettings.AppSettings.AppIdChat, PhotonNetwork.AppVersion, new AuthenticationValues(username));
Debug.Log("Connenting");
}
#endregion Setup
#region General
[SerializeField] GameObject chatPanel;
string privateReceiver = "";
string currentChat;
[SerializeField] InputField chatField;
[SerializeField] Text chatDisplay;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (isConnected)
{
chatClient.Service();
}
if (chatField.text != "" && Input.GetKey(KeyCode.Return))
{
SubmitPublicChatOnClick();
SubmitPrivateChatOnClick();
}
}
#endregion General
#region PublicChat
public void SubmitPublicChatOnClick()
{
if (privateReceiver == "")
{
chatClient.PublishMessage("RegionChannel", currentChat);
chatField.text = "";
currentChat = "";
}
}
public void TypeChatOnValueChange(string valueIn)
{
currentChat = valueIn;
}
#endregion PublicChat
#region PrivateChat
public void ReceiverOnValueChange(string valueIn)
{
privateReceiver = valueIn;
}
public void SubmitPrivateChatOnClick()
{
if (privateReceiver != "")
{
chatClient.SendPrivateMessage(privateReceiver, currentChat);
chatField.text = "";
currentChat = "";
}
}
#endregion PrivateChat
#region Callbacks
public void DebugReturn(DebugLevel level, string message)
{
//throw new System.NotImplementedException();
}
public void OnChatStateChange(ChatState state)
{
if(state == ChatState.Uninitialized)
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
}
public void OnConnected()
{
Debug.Log("Connected");
joinChatButton.SetActive(false);
chatClient.Subscribe(new string[] { "RegionChannel" });
}
public void OnDisconnected()
{
isConnected = false;
joinChatButton.SetActive(true);
chatPanel.SetActive(false);
}
public void OnGetMessages(string channelName, string[] senders, object[] messages)
{
string msgs = "";
for (int i = 0; i < senders.Length; i++)
{
msgs = string.Format("{0}: {1}", senders[i], messages[i]);
chatDisplay.text += "\n" + msgs;
Debug.Log(msgs);
}
}
public void OnPrivateMessage(string sender, object message, string channelName)
{
string msgs = "";
msgs = string.Format("(Private) {0}: {1}", sender, message);
chatDisplay.text += "\n " + msgs;
Debug.Log(msgs);
}
public void OnStatusUpdate(string user, int status, bool gotMessage, object message)
{
throw new System.NotImplementedException();
}
public void OnSubscribed(string[] channels, bool[] results)
{
chatPanel.SetActive(true);
}
public void OnUnsubscribed(string[] channels)
{
throw new System.NotImplementedException();
}
public void OnUserSubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
public void OnUserUnsubscribed(string channel, string user)
{
throw new System.NotImplementedException();
}
#endregion Callbacks
}
