Circuits/Assets/Resources/Scripts/Main/Networking/Room/RoomManager.cs

using ExitGames.Client.Photon;
using Photon.Pun;
using Photon.Realtime;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class RoomManager : MonoBehaviourPunCallbacks {

	//GameObjects
	public GameObject countdownPanel;

	//Room Manager Singleton
	public static RoomManager Instance {
		get; set;
	}

	//Buttons
	public Button startButton;

	//Texts
	public Text roomTitle;

	//Scripts
	public PlayerSlotManager playerSlotManager;
	public StartCountdown startCountdown;

	private PhotonView pv;

	private void Awake() {
		Instance = this;
		pv = GetComponent<PhotonView>();
	}

	public void OnStartButtonClicked() {
		Debug.Log("Start Button clicked");

		PhotonNetwork.CurrentRoom.IsVisible = false;
		PhotonNetwork.CurrentRoom.IsOpen = false;
		pv.RPC("RpcStartCountdown", RpcTarget.All);
	}

	//Called by PhotonLobby
	new public void OnJoinedRoom() {
		playerSlotManager.OnJoinedRoom();
		CheckInterface();
	}

	//Called by PhotonLobby
	new public void OnLeftRoom() {
		playerSlotManager.Clear();
		PhotonNetwork.LocalPlayer.SetCustomProperties(new Hashtable());
	}

	public override void OnPlayerEnteredRoom(Player newPlayer) {
		Debug.Log("Player " + newPlayer.NickName + " entered the room");

		playerSlotManager.OnPlayerEnteredRoom(newPlayer);
		CheckInterface();
	}

	public override void OnPlayerLeftRoom(Player otherPlayer) {
		Debug.Log("Player " + otherPlayer.NickName + " left the room");

		playerSlotManager.OnPlayerLeftRoom(otherPlayer);
		CheckInterface();
	}

	public override void OnMasterClientSwitched(Player newMasterClient) {
		Debug.Log("Master client switched to: " + newMasterClient.ToStringFull());

		playerSlotManager.OnMasterClientSwitched(newMasterClient);
		CheckInterface();
	}

	public override void OnPlayerPropertiesUpdate(Player target, Hashtable changedProps) {
		playerSlotManager.OnPlayerPropertiesUpdate(target, changedProps);
	}

	[PunRPC]
	private void RpcStartCountdown() {
		Debug.Log("Starting countdown...");

		countdownPanel.SetActive(true);
		startCountdown.StartCount(MultiplayerSettings.Instance.startTime);
	}

	public void StartSelection() {
		Debug.Log("Started loading selection scene...");

		//Reset IsReady property for later usage
		PhotonNetwork.LocalPlayer.SetCustomProperties(new Hashtable() { ["IsReady"] = false });

		//Every client loads Selection Scene itself
		PhotonNetwork.LoadLevel(1);
	}

	private void CheckInterface() {
		bool master = PhotonNetwork.IsMasterClient;
		int playerCount = PhotonNetwork.CurrentRoom.PlayerCount;
		int minPlayers = MultiplayerSettings.Instance.minPlayers;
		int maxPlayers = MultiplayerSettings.Instance.maxPlayers;
		bool interactable = playerSlotManager.IsEveryoneReady() &&
			playerCount >= minPlayers && playerCount <= maxPlayers && master;

		startButton.interactable = interactable;
		roomTitle.text = PhotonNetwork.CurrentRoom.Name;
	}

	private void Update() {
		CheckInterface();
	}

}