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My New Scary Game Unity Project – CAMPFIRE Ep 1

In this video, I will be working on a new Unity Project. This project is going to be an Among Us type game. I am going to document the process of development for this project and you will be able to see it become a finished game. This game will have multiplayer where one player will be picked to be the monster like the imposter. The main difference between my game and Among Us is that Among us plays like a game of murderer in the dark my game will play more like hide and seek or tag.

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Among Us Multiplayer – Vents (PUN 2 in Unity)

In this tutorial on how to make Among Us in Unity, I will show you how to make the Vents and Vent mechanic. The vents allow the imposter to hide and move around the map faster than the rest of the regular crewmates. To create the vents we will be using the interactable prefab that we have already created. We will also need to create an animation for the players to hide. Clicking on the vent will then enable a UI system from switching between vents.

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AU_PlayerController.cs

using Photon.Pun;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.InputSystem;

public class AU_PlayerController : MonoBehaviour, IPunObservable
{
    [SerializeField] bool hasControl;
    public static AU_PlayerController localPlayer;
    

    //Components
    Rigidbody myRB;
    Animator myAnim;
    Transform myAvatar;
    //Player movement
    [SerializeField] InputAction WASD;
    Vector2 movementInput;
    [SerializeField] float movementSpeed;

    float direction = 1;
    //Player Color
    static Color myColor;
    SpriteRenderer myAvatarSprite;

    //Player Hat
    static Sprite myHatSprite;
    SpriteRenderer myHatHolder;

    //Role
    [SerializeField] bool isImposter;
    [SerializeField] InputAction KILL;

    List<AU_PlayerController> targets;
    [SerializeField] Collider myCollider;

    bool isDead;

    [SerializeField] GameObject bodyPrefab;

    public static List<Transform> allBodies;

    List<Transform> bodiesFound;

    [SerializeField] InputAction REPORT;
    [SerializeField] LayerMask ignoreForBody;

    //Interaction
    [SerializeField] InputAction MOUSE;
    Vector2 mousePositionInput;
    Camera myCamera;
    [SerializeField] InputAction INTERACTION;
    [SerializeField] LayerMask interactLayer;

    //Networking
    PhotonView myPV;
    [SerializeField] GameObject lightMask;
    [SerializeField] lightcaster myLightCaster;



    private void Awake()
    {
        KILL.performed += KillTarget;
        REPORT.performed += ReportBody;
        INTERACTION.performed += Interact;
    }

    private void OnEnable()
    {
        WASD.Enable();
        KILL.Enable();
        REPORT.Enable();
        MOUSE.Enable();
        INTERACTION.Enable();

    }

    private void OnDisable()
    {
        WASD.Disable();
        KILL.Disable();
        REPORT.Disable();
        MOUSE.Disable();
        INTERACTION.Disable();

    }


    // Start is called before the first frame update
    void Start()
    {
        myPV = GetComponent<PhotonView>();

        if(myPV.IsMine)
        {
            localPlayer = this;
        }
        myCamera = transform.GetChild(1).GetComponent<Camera>();
        targets = new List<AU_PlayerController>();
        myRB = GetComponent<Rigidbody>();
        myAnim = GetComponent<Animator>();
        myAvatar = transform.GetChild(0);
        myAvatarSprite = myAvatar.GetComponent<SpriteRenderer>();
        myHatHolder = transform.GetChild(0).GetChild(1).GetComponent<SpriteRenderer>();
        if (!myPV.IsMine)
        {
            myCamera.gameObject.SetActive(false);
            lightMask.SetActive(false);
            myLightCaster.enabled = false;
            return;
        }
        if (myColor == Color.clear)
            myColor = Color.white;
        myAvatarSprite.color = myColor;

        if(allBodies == null)
        {
            allBodies = new List<Transform>();
        }
        bodiesFound = new List<Transform>();

        if (myHatSprite != null)
            myHatHolder.sprite = myHatSprite;
    }

    // Update is called once per frame
    void Update()
    {
        myAvatar.localScale = new Vector2(direction, 1);

        if (!myPV.IsMine || !hasControl)
            return;

        movementInput = WASD.ReadValue<Vector2>();
        myAnim.SetFloat("Speed", movementInput.magnitude);
        if (movementInput.x != 0)
        {
            direction = Mathf.Sign(movementInput.x);
            
        }
        

        if(allBodies.Count > 0)
        {
            BodySearch();
        }

        if(REPORT.triggered)
        {
            if (bodiesFound.Count == 0)
                return;
            Transform tempBody = bodiesFound[bodiesFound.Count - 1];
            allBodies.Remove(tempBody);
            bodiesFound.Remove(tempBody);
            tempBody.GetComponent<AU_Body>().Report();
        }

        mousePositionInput = MOUSE.ReadValue<Vector2>();
        
    }

    private void FixedUpdate()
    {
        if (!myPV.IsMine || !hasControl)
            return;
        myRB.velocity = movementInput * movementSpeed;
    }

    public void SetColor(Color newColor)
    {
        myColor = newColor;
        if (myAvatarSprite != null)
        {
            myAvatarSprite.color = myColor;
        }
    }

    public void SetHat(Sprite newHat)
    {
        myHatSprite = newHat;
        myHatHolder.sprite = myHatSprite;
    }

    public void SetRole(bool newRole)
    {
        isImposter = newRole;
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.tag == "Player")
        {
            AU_PlayerController tempTarget = other.GetComponent<AU_PlayerController>();
            if (isImposter)
            {
                if (tempTarget.isImposter)
                    return;
                else
                {
                    targets.Add(tempTarget);
                    
                }
            }
        }
    }

    private void OnTriggerExit(Collider other)
    {
        if (other.tag == "Player")
        {
            AU_PlayerController tempTarget = other.GetComponent<AU_PlayerController>();
            if (targets.Contains(tempTarget))
            {
                    targets.Remove(tempTarget);
            }
        }
    }

    void KillTarget(InputAction.CallbackContext context)
    {
        if (!myPV.IsMine || !hasControl)
            return;
        if (!isImposter)
            return;

        if (context.phase == InputActionPhase.Performed)
        {
            if (targets.Count == 0)
                return;
            else
            {
                if (targets[targets.Count - 1].isDead)
                    return;
                transform.position = targets[targets.Count - 1].transform.position;
                //targets[targets.Count - 1].Die();
                targets[targets.Count - 1].myPV.RPC("RPC_Kill", RpcTarget.All);
                targets.RemoveAt(targets.Count - 1);
            }
        }
    }


    [PunRPC]
    void RPC_Kill()
    {
        Die();
    }

    public void Die()
    {
        if (!myPV.IsMine)
            return;

        //AU_Body tempBody = Instantiate(bodyPrefab, transform.position, transform.rotation).GetComponent<AU_Body>();
        AU_Body tempBody = PhotonNetwork.Instantiate(Path.Combine("PhotonPrefabs", "AU_Body"), transform.position, transform.rotation).GetComponent<AU_Body>();
        tempBody.SetColor(myAvatarSprite.color);

        isDead = true;

        myAnim.SetBool("IsDead", isDead);
        gameObject.layer = 9;
        myCollider.enabled = false;
    }

    void BodySearch()
    {
        foreach(Transform body in allBodies)
        {
            RaycastHit hit;
            Ray ray = new Ray(transform.position, body.position - transform.position);
            Debug.DrawRay(transform.position, body.position - transform.position, Color.cyan);
            if(Physics.Raycast(ray, out hit, 1000f, ~ignoreForBody))
            {
                
                if (hit.transform == body)
                {
                    Debug.Log(hit.transform.name);
                    Debug.Log(bodiesFound.Count);
                    if (bodiesFound.Contains(body.transform))
                        return;
                    bodiesFound.Add(body.transform);
                }
                else
                {
                    
                    bodiesFound.Remove(body.transform);
                }
            }
        }
    }

    private void ReportBody(InputAction.CallbackContext obj)
    {
        if (bodiesFound == null)
            return;
        if (bodiesFound.Count == 0)
            return;
        Transform tempBody = bodiesFound[bodiesFound.Count - 1];
        allBodies.Remove(tempBody);
        bodiesFound.Remove(tempBody);
        tempBody.GetComponent<AU_Body>().Report();
    }

    void Interact(InputAction.CallbackContext context)
    {
        if (context.phase == InputActionPhase.Performed)
        {
            //Debug.Log("Here");
            RaycastHit hit;
            Ray ray = myCamera.ScreenPointToRay(mousePositionInput);
            if (Physics.Raycast(ray, out hit,interactLayer))
            {
                if (hit.transform.tag == "Interactable")
                {
                    AU_Interactable temp = hit.transform.GetComponent<AU_Interactable>();
                    temp.PlayMiniGame();
                }

                if(hit.transform.tag == "Vent")
                {
                    myAnim.SetBool("Vented", true);
                    AU_Interactable temp = hit.transform.GetComponent<AU_Interactable>();
                    temp.PlayMiniGame();
                }

            }
           
        }
        
    }

    public void ExitVent()
    {
        myAnim.SetBool("Vented", false);
    }

    public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
    {
        if (stream.IsWriting)
        {
            stream.SendNext(direction);
            stream.SendNext(isImposter);
        }
        else
        {
            this.direction = (float)stream.ReceiveNext();
            this.isImposter = (bool)stream.ReceiveNext();
        }
    }

    public void BecomeImposter(int ImposterNumber)
    {
        if(PhotonNetwork.LocalPlayer == PhotonNetwork.PlayerList[ImposterNumber])
        {
            isImposter = true;
        }
    }
}

AU_Vent.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class AU_Vent : MonoBehaviour
{
    [SerializeField] GameObject currentPanel;
    [SerializeField] GameObject nextPanel;

    [SerializeField] Transform NewPosition;

    public void ChangeVent()
    {
        currentPanel.SetActive(false);
        nextPanel.SetActive(true);
        AU_PlayerController.localPlayer.transform.position = NewPosition.position;
    }

    public void ExitVent()
    {
        currentPanel.SetActive(false);
        AU_PlayerController.localPlayer.ExitVent();
    }
}
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 != "" &amp;&amp; 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 &lt; 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
}

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Among Us Multiplayer – Photon Spawn Points (PUN 2 in Unity)

In this video on how to make our Among Us project multiplayer, I will show you how to network the spawn points of the players using Photon. This is done by creating new empty game objects to serve as transforms for the spawn points. We will then create a new script that holds these transform in an array. We will Change the Photon Player script to spawn the player’s avatar on the corresponding spawn point.

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AU_GameController.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class AU_GameController : MonoBehaviour
{
    public static AU_GameController instance;

    public Transform[] spawnPoints;

    // Start is called before the first frame update
    void Start()
    {
        instance = this;
    }

}

MyPhotonPlayer.cs

using Photon.Pun;
using Photon.Realtime;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class MyPhotonPlayer : MonoBehaviour
{
    PhotonView myPV;
    GameObject myPlayerAvatar;

    Player[] allPlayers;
    int myNumberInRoom;

    // Start is called before the first frame update
    void Start()
    {
        myPV = GetComponent<PhotonView>();

        allPlayers = PhotonNetwork.PlayerList;
        foreach(Player p in allPlayers)
        {
            if(p!= PhotonNetwork.LocalPlayer)
            {
                myNumberInRoom++;
            }
        }


        if (myPV.IsMine)
        {
            myPlayerAvatar = PhotonNetwork.Instantiate(Path.Combine("PhotonPrefabs", "AU_Player"), AU_GameController.instance.spawnPoints[myNumberInRoom].position, Quaternion.identity);
        }
    }


}
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 != "" &amp;&amp; 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 &lt; 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
}