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refactor: major refactor for UserManager, and comments for LobbyManager

This commit is contained in:
Yannik Bretschneider 2021-06-07 14:51:38 +02:00
parent 3ea1cc6cf5
commit e40218b2cf
2 changed files with 178 additions and 82 deletions
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63
Server/src/main/java/uulm/teamname/marvelous/server/lobbymanager/LobbyManager.java
View File

@ -34,15 +34,19 @@ public class LobbyManager {
private final HashMap<SUID, Participant> participants = new HashMap<>();
/**
* Handles a newly connected Client, and returns whether the game is already running in the given {@link
* AtomicBoolean}
*/
public boolean handleConnect(Client client, AtomicBoolean running) {
if(participants.containsKey(client.id)) {
if (participants.containsKey(client.id)) {
running.set(true);
}
return true;
}
public boolean handleReady(Client client, PlayerReadyMessage message) {
if(participants.containsKey(client.id)) {
if (participants.containsKey(client.id)) {
return false;
}
@ -51,7 +55,7 @@ public class LobbyManager {
}
public boolean handleReconnect(Client client) {
if(!participants.containsKey(client.id)) {
if (!participants.containsKey(client.id)) {
return false;
}
@ -60,7 +64,7 @@ public class LobbyManager {
LobbyConnection lobby = lobbies.get(participant.lobby);
if(lobby == null) {
if (lobby == null) {
return false;
}
@ -69,20 +73,28 @@ public class LobbyManager {
return true;
}
/**
* Handles a {@link CharacterSelectionMessage}, computes the characters that have been selected and relays that
* information to the {@link LobbyConnection} concerned by this information.
*
* @param client is the client that sent the message
* @param message is the message sent by the client
* @return true if handled successfully, and false otherwise
*/
public boolean handleSelection(Client client, CharacterSelectionMessage message) {
if(!participants.containsKey(client.id)) {
if (!participants.containsKey(client.id)) {
return false;
}
Participant participant = participants.get(client.id);
if(participant.state != ParticipantState.Assigned) {
if (participant.state != ParticipantState.Assigned) {
return false;
}
LobbyConnection lobby = lobbies.get(participant.lobby);
if(lobby == null) {
if (lobby == null) {
return false;
}
@ -91,13 +103,13 @@ public class LobbyManager {
CharacterProperties[] options = lobby.options.get(participant.type);
int n = 0;
for(int i = 0; i < 12; i++) {
if(message.characters[i]) {
for (int i = 0; i < 12; i++) {
if (message.characters[i]) {
selected[n++] = options[i].characterID;
}
}
if(n != 6) {
if (n != 6) {
return false;
}
@ -109,27 +121,34 @@ public class LobbyManager {
response.selectionComplete = complete;
participant.sendMessage(response);
if(complete) {
if (complete) {
LobbyRunner.getInstance().startLobby(lobby);
}
return true;
}
/**
* Handles a requestMessage, and relays it to the Lobby if valid
*
* @param client is the client that sent the message
* @param message is the message sent by the client
* @return true if handled successfully, and false otherwise
*/
public boolean handleRequests(Client client, RequestMessage message) {
if(!participants.containsKey(client.id)) {
if (!participants.containsKey(client.id)) {
return false;
}
Participant participant = participants.get(client.id);
if(participant.state != ParticipantState.Playing) {
if (participant.state != ParticipantState.Playing) {
return false;
}
LobbyConnection lobby = lobbies.get(participant.lobby);
if(lobby == null) {
if (lobby == null) {
return false;
}
@ -139,11 +158,11 @@ public class LobbyManager {
}
public void handleDisconnect(Client client, boolean byRemote) {
if(!participants.containsKey(client.id)) {
if (!participants.containsKey(client.id)) {
return;
}
if(!byRemote) {
if (!byRemote) {
participants.remove(client.id);
}
@ -151,7 +170,7 @@ public class LobbyManager {
LobbyConnection lobby = lobbies.get(participant.lobby);
if(lobby == null) {
if (lobby == null) {
return;
}
@ -164,8 +183,8 @@ public class LobbyManager {
}
private void addParticipant(Client client, String lobbyID, RoleEnum role) {
if(!lobbies.containsKey(lobbyID)) {
if(!LobbyRunner.getInstance().canAddLobby()) {
if (!lobbies.containsKey(lobbyID)) {
if (!LobbyRunner.getInstance().canAddLobby()) {
UserManager.getInstance().removeClient(client, "The server is currently full.");
return;
}
@ -176,7 +195,7 @@ public class LobbyManager {
ParticipantType type = lobby.freeSlot();
if(type == ParticipantType.Spectator && role != RoleEnum.SPECTATOR) {
if (type == ParticipantType.Spectator && role != RoleEnum.SPECTATOR) {
UserManager.getInstance().removeClient(client, "The game is already full. Please connect as a spectator instead.");
return;
}
@ -186,12 +205,12 @@ public class LobbyManager {
lobby.addParticipant(participant);
if(type != ParticipantType.Spectator) {
if (type != ParticipantType.Spectator) {
GameAssignmentMessage response = new GameAssignmentMessage();
response.gameID = lobby.gameID;
response.characterSelection = lobby.options.get(type);
participant.sendMessage(response);
}else {
} else {
GeneralAssignmentMessage response = new GeneralAssignmentMessage();
response.gameID = lobby.gameID;
participant.sendMessage(response);

197
Server/src/main/java/uulm/teamname/marvelous/server/netconnector/UserManager.java
View File

@ -1,6 +1,7 @@
package uulm.teamname.marvelous.server.netconnector;
import org.java_websocket.framing.CloseFrame;
import org.tinylog.Logger;
import uulm.teamname.marvelous.gamelibrary.json.JSON;
import uulm.teamname.marvelous.gamelibrary.json.ValidationUtility;
import uulm.teamname.marvelous.gamelibrary.messages.BasicMessage;
@ -45,6 +46,7 @@ public class UserManager {
/** Called on a new WebSocket connection. Places the WebSocket and its ResourceDescriptor in a HashMap. */
void connectUser(WebSocket conn) {
Logger.debug("Connected new user");
synchronized(clients) {
clients.put(conn, new Client(conn));
}
@ -56,15 +58,19 @@ public class UserManager {
* @param message is the {@link String} sent by the connection
*/
void messageReceived(WebSocket conn, String message) {
Logger.debug("Message received from {}", conn);
Client client = clients.get(conn);
if(client == null) {
Logger.warn("messageReceived called with null-valued client. This is probably a bug.");
return;
}
Logger.trace("Parsing message...");
Optional<BasicMessage> parsed = json.parse(message);
if(parsed.isEmpty()) {
Logger.debug("Message couldn't be parsed, sending error...");
client.sendError("Message could not be parsed.");
return;
}
@ -73,108 +79,179 @@ public class UserManager {
Optional<String> violations = ValidationUtility.validate(data);
if(violations.isPresent()) {
Logger.debug("The message that client sent had structural violations: '{}'. Sending error...",
violations.get());
client.sendError(violations.get());
return;
}
Logger.trace("Handling message...");
handleMessage(client, data);
}
/** Called on closed connection. */
void disconnectUser(WebSocket conn, boolean closedByRemote) {
Logger.info("Disconnecting client '{}'", conn);
Client client = clients.get(conn);
if(client == null) {
Logger.warn("disconnect called with null-valued client. This is probably a bug.");
return;
}
Logger.trace("Calling handleDisconnect on LobbyManager");
LobbyManager.getInstance().handleDisconnect(client, closedByRemote);
synchronized(clients) {
Logger.debug("Removing connections from clients HashMap");
clients.remove(conn);
}
}
/** Checks type of a given message, and delegates its execution to the respective handler method */
private void handleMessage(Client client, BasicMessage data) {
Logger.debug("Received message from client '{}'", client);
if(data instanceof HelloServerMessage) {
Logger.trace("Message was instanceof HelloServerMessage");
HelloServerMessage message = (HelloServerMessage) data;
if(client.state != ClientState.Blank) {
client.sendError("Invalid message.");
return;
}
handleHelloServerMessage(client, message);
client.id = new SUID(message.name, message.deviceID);
AtomicBoolean running = new AtomicBoolean(false);
if(LobbyManager.getInstance().handleConnect(client, running)) {
client.state = ClientState.Ready;
HelloClientMessage response = new HelloClientMessage();
response.runningGame = running.get();
client.sendMessage(response);
} else {
client.sendError("Invalid message.");
}
} else if(data instanceof ReconnectMessage) {
ReconnectMessage message = (ReconnectMessage) data;
if(client.state != ClientState.Ready) {
client.sendError("Invalid message.");
return;
}
handleReconnectMessage(client, message);
if(message.reconnect) {
if(LobbyManager.getInstance().handleReconnect(client)) {
client.state = ClientState.Playing;
} else {
client.sendError("Invalid message.");
}
} else {
client.state = ClientState.Blank;
}
} else if(data instanceof PlayerReadyMessage) {
Logger.trace("Message was instanceof PlayerReadyMessage");
PlayerReadyMessage message = (PlayerReadyMessage) data;
if(client.state != ClientState.Ready) {
client.sendError("Invalid message.");
return;
}
handlePlayerReadyMessage(client, message);
if(message.startGame) {
if(LobbyManager.getInstance().handleReady(client, message)) {
client.state = ClientState.Assigned;
} else {
client.sendError("Invalid message.");
}
} else {
removeClient(client, "You got disconnected.");
}
} else if(data instanceof CharacterSelectionMessage) {
Logger.trace("Message was instanceof CharacterSelectionMessage");
CharacterSelectionMessage message = (CharacterSelectionMessage) data;
if(client.state != ClientState.Assigned) {
client.sendError("Invalid message.");
return;
}
handleCharacterSelectionMessage(client, message);
if(LobbyManager.getInstance().handleSelection(client, message)) {
client.state = ClientState.Playing;
} else {
client.sendError("Invalid message.");
}
} else if(data instanceof RequestMessage) {
Logger.trace("Message was instanceof RequestMessage");
RequestMessage message = (RequestMessage) data;
if(client.state != ClientState.Playing) {
client.sendError("Invalid message.");
return;
}
handleRequestsMessage(client, message);
if(LobbyManager.getInstance().handleRequests(client, message)) {
//"👍 i approve" - the server
} else {
client.sendError("Invalid message.");
}
}
}
/** Handles a HelloServerMessage */
private void handleHelloServerMessage(Client client, HelloServerMessage message) {
if(client.state != ClientState.Blank) {
Logger.debug("Disconnecting client as ClientState isn't Blank but {}", client.state);
client.sendError("Invalid message, as handshake already completed.");
return;
}
client.id = new SUID(message.name, message.deviceID);
Logger.trace("forwarding message to the LobbyManager");
AtomicBoolean running = new AtomicBoolean(false);
if(LobbyManager.getInstance().handleConnect(client, running)) {
client.state = ClientState.Ready;
HelloClientMessage response = new HelloClientMessage();
response.runningGame = running.get();
client.sendMessage(response);
} else {
client.sendError("Message could not be processed.");
}
}
/** Handles a reconnectMessage, and reconnects the client if needed */
private void handleReconnectMessage(Client client, ReconnectMessage message) {
if(client.state != ClientState.Ready) {
client.sendError("Invalid message.");
return;
}
if(message.reconnect) {
Logger.trace("Reconnecting to lobby. Forwarding reconnect instruction to the LobbyManager");
if(LobbyManager.getInstance().handleReconnect(client)) {
Logger.trace("Successfully reconnected client, changing state to Playing...");
client.state = ClientState.Playing;
} else {
Logger.debug("The client couldn't be reconnected properly");
client.sendError("You could not be reconnected to the Lobby");
}
} else {
Logger.trace("No reconnect requested, changing ClientState to blank");
client.state = ClientState.Blank;
}
}
/** Handles a PlayerReadyMessage, and connects a client to a lobby if valid */
private void handlePlayerReadyMessage(Client client, PlayerReadyMessage message) {
Logger.trace("Handing PlayerReadyMessage...");
if(client.state != ClientState.Ready) {
Logger.debug("Client wasn't in Ready state but instead in {} state, sending error...", client.state);
client.sendError("Invalid message, as client is not in Ready state");
return;
}
Logger.trace("Relaying message to LobbyManager");
if(message.startGame) {
if(LobbyManager.getInstance().handleReady(client, message)) {
client.state = ClientState.Assigned;
} else {
Logger.trace("Sending error to client as message couldn't be processed properly");
client.sendError("Invalid message.");
}
} else {
Logger.debug("Disconnecting client as game couldn't be started");
removeClient(client, "You got disconnected.");
}
}
/** Handles a characterSelectionMessage, and forwards it to the LobbyManager if valid */
private void handleCharacterSelectionMessage(Client client, CharacterSelectionMessage message) {
Logger.trace("Handling CharacterSelectionMessage");
if(client.state != ClientState.Assigned) {
Logger.debug("Couldn't handle CharacterSelectionMessage as client wasn't in assignedState but in {}",
client.state);
client.sendError("Cannot select character, as client is not in the Character Selection phase");
return;
}
Logger.trace("relaying message to be handled by the LobbyManager...");
if(LobbyManager.getInstance().handleSelection(client, message)) {
Logger.trace("Handled successfully");
client.state = ClientState.Playing;
} else {
client.sendError("Invalid message.");
}
}
/** Handles a RequestMessage, and forwards it to the LobbyManager if valid */
private void handleRequestsMessage(Client client, RequestMessage message) {
Logger.trace("Handling RequestMessage");
if(client.state != ClientState.Playing) {
Logger.debug("Couldn't handle RequestMessage as client wasn't in assignedState but in {}",
client.state);
client.sendError("Invalid message, as client is not ingame");
return;
}
Logger.trace("relaying message to be handled by the LobbyManager...");
if(LobbyManager.getInstance().handleRequests(client, message)) {
Logger.trace("Handled successfully");
//"i approve" - the server
} else {
Logger.debug("Message couldn't be handled, sending error to client");
client.sendError("Invalid message.");
}
}
/**
* Called when a client should be removed from the game.
* @param client is the client to be removed
* @param message is the message that is sent to the client in the accompanying {@link GoodbyeClientMessage}
*/
public void removeClient(Client client, String message) {
GoodbyeClientMessage response = new GoodbyeClientMessage();
response.message = message;