1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
package kz.ilotterytea.frogartha.server;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.utils.JsonReader;
import com.badlogic.gdx.utils.JsonValue;
import com.badlogic.gdx.utils.JsonWriter;
import kz.ilotterytea.frogartha.FrogarthaConstants;
import kz.ilotterytea.frogartha.domain.Identity;
import kz.ilotterytea.frogartha.domain.PlayerState;
import kz.ilotterytea.frogartha.domain.actions.*;
import kz.ilotterytea.frogartha.domain.events.ChangedDirectionEvent;
import kz.ilotterytea.frogartha.domain.events.ChatMessageEvent;
import kz.ilotterytea.frogartha.domain.events.IdentifiedEvent;
import kz.ilotterytea.frogartha.domain.events.PlayerJumpEvent;
import kz.ilotterytea.frogartha.exceptions.PlayerKickException;
import kz.ilotterytea.frogartha.utils.Logger;
import okhttp3.*;
import java.util.Optional;
public class ServerHandlers {
private static final Logger log = new Logger(ServerHandlers.class);
private static final FrogarthaServer server = FrogarthaServer.getInstance();
public static void handleIdentification(PlayerConnection player, IdentificationAction action) {
JsonValue json = new JsonValue(JsonValue.ValueType.object);
json.addChild("clientToken", new JsonValue(action.getClientToken()));
json.addChild("accessToken", new JsonValue(action.getAccessToken()));
OkHttpClient client = new OkHttpClient();
Request httpRequest = new Request.Builder()
.post(RequestBody.create(json.toJson(JsonWriter.OutputType.json), MediaType.parse("application/json; charset=utf-8")))
.url(FrogarthaConstants.URLS.IDENTITY_IDENTIFY_URL)
.build();
try (Response response = client.newCall(httpRequest).execute()) {
if (response.body() == null) {
throw new Exception("Response body is null");
}
json = new JsonReader().parse(response.body().string());
if (response.code() != 200) {
throw new Exception(json.get("error").getString("message"));
}
Identity identity = new Identity(
json.get("data").getLong("id"),
json.get("data").getString("username")
);
player.setIdentification(action);
player.setIdentity(identity);
player.send(new IdentifiedEvent(player.getId(), identity));
log.log("Successfully identified {} for {}", identity, player);
} catch (Exception e) {
log.error("Failed to identify: {}", e);
server.kickConnection(player, PlayerKickException.badLogin(e.getMessage()));
return;
}
if (server.getPlayers()
.stream()
.filter((x) -> x.getIdentity() != null)
.anyMatch((x) -> x.getIdentity().getId() == player.getIdentity().getId() && x.getId() != player.getId())) {
server.kickConnection(player, PlayerKickException.loggedIn());
}
}
public static void handlePlayerJumpAction(PlayerConnection player, PlayerJumpAction action) {
if (player.getRoom() == null) {
throw PlayerKickException.notInRoom();
}
PlayerState state = player.getState();
float nowTimestamp = System.currentTimeMillis() / 1000f;
if (state.getNextJumpTimestamp() > nowTimestamp) {
throw PlayerKickException.jumpSpam();
}
state.setNextJumpTimestamp(nowTimestamp + action.getJumpStrength());
// calculating start and end positions
Vector3 position = state.getPosition();
Vector3 startPosition = position.cpy();
float jumpDistance = action.getJumpStrength() * FrogarthaConstants.Player.JUMP_SPEED;
Vector3 d = new Vector3(state.getDirection().x, state.getPosition().y, state.getDirection().y).sub(startPosition).nor();
Vector3 endPosition = new Vector3(
position.x + d.x * jumpDistance,
position.y,
position.z + d.z * jumpDistance
);
state.setPosition(endPosition.x, endPosition.y, endPosition.z);
PlayerJumpEvent event = new PlayerJumpEvent(
player.getId(), startPosition, endPosition, action.getJumpStrength()
);
log.log("{} jumped from {} to {} with strength {}", player, startPosition, endPosition, action.getJumpStrength());
Room room = player.getRoom();
room.broadcast(event);
}
public static void handleChangedDirectionAction(PlayerConnection player, ChangedDirectionAction action) {
if (player.getRoom() == null) {
throw PlayerKickException.notInRoom();
}
PlayerState state = player.getState();
Vector2 direction = action.getDirection();
state.setDirection(direction.x, direction.y);
ChangedDirectionEvent event = new ChangedDirectionEvent(player.getId(), state.getDirection());
Room room = player.getRoom();
room.broadcast(event);
}
public static void handleJoinRoomAction(PlayerConnection player, JoinRoomAction action) {
Optional<Room> optionalRoom = server.getRooms().stream()
.filter((x) ->
x.getPlayers().size() < FrogarthaConstants.Room.MAX_PLAYERS &&
x.getTopic().equals(action.getTopic())
)
.findFirst();
Room room = optionalRoom.orElse(new Room(action.getTopic()));
room.addPlayer(player);
if (optionalRoom.isEmpty()) {
server.getRooms().add(room);
}
log.log("{} joined {}", player, room);
}
public static void handleLeaveRoomAction(PlayerConnection player, LeaveRoomAction action) {
Optional<Room> optionalRoom = server.getRooms().stream()
.filter((x) -> x.getPlayers().contains(player))
.findFirst();
if (optionalRoom.isEmpty()) {
throw PlayerKickException.illegalOperation();
}
Room room = optionalRoom.get();
room.removePlayer(player);
if (room.getPlayers().isEmpty()) {
server.getRooms().remove(room);
log.log("{} was removed!", room);
}
log.log("{} left {}", player, room);
}
public static void handleChatMessageAction(PlayerConnection player, ChatMessageAction action) {
if (player.getRoom() == null) {
throw PlayerKickException.notInRoom();
}
long nowTimestamp = System.currentTimeMillis();
if (nowTimestamp - player.getState().getLastMessageTimestamp() < FrogarthaConstants.Chat.MESSAGE_PER_MS) {
throw PlayerKickException.messageSpam();
}
player.getState().setLastMessageTimestamp(nowTimestamp);
Room room = player.getRoom();
room.broadcast(new ChatMessageEvent(player.getId(), action.getMessage()));
log.log("{} sent a message: {}", player, action.getMessage());
}
}
|
