-
Notifications
You must be signed in to change notification settings - Fork 1
/
PlayerClient.java
236 lines (192 loc) · 6.54 KB
/
PlayerClient.java
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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.net.SocketException;
import java.util.Random;
import java.util.Scanner;
public class PlayerClient {
private static final int PORT = 9231;
private String name = null;
private CardCollection hand = new CardCollection();
private CardCollection pile = null;
private Suit selectedSuit = null;
private ObjectOutputStream out;
private ObjectInputStream in;
private Socket socket;
// ______________PUBLIC______________
public PlayerClient(String name) {
this.name = name;
}
/*
* Creates a socket and a couple of Object streams to communicate with the server
*/
public void openConnection() throws IOException {
socket = new Socket("localhost", PORT);
out = new ObjectOutputStream(socket.getOutputStream());
in = new ObjectInputStream(socket.getInputStream());
}
/*
* Listens to the server's command and responds to them appropriately.
*/
public void listen() throws IOException, ClassNotFoundException {
// The client never initiates communication with the server. It only
// responds to the server's requests. Hence why such a loop is possible.
GameProtocol serverMsg;
while ((serverMsg = (GameProtocol) in.readObject()) != GameProtocol.GAME_OVER) {
respond((serverMsg));
}
receiveGameResult();
}
// ______________PRIVATE______________
/*
* Responds to the specified server command.
* Returns some information to server for commands prefixed with "R" (R-> resource)
* Performs some action for commands prefixed with "C" (C -> command)
*/
private void respond(GameProtocol cmd) throws IOException, ClassNotFoundException {
switch (cmd) {
case SEND_NAME:
cmdSendName();
break;
case RECEIVE_CARD:
cmdReceiveCard();
break;
case RECEIVE_CARD_COLLECTION:
cmdReceiveCardCollection();
break;
case RECEIVE_SUIT:
cmdReceiveSuit();
break;
case SEND_CARDS_RANDOMLY_HAND:
cmdSendRandomlyFromHand();
break;
case SEND_CARDS_STRATEGICALLY_HAND:
cmdSendStrategicallyFromHand();
break;
case SEND_CARDS_STRATEGICALLY_PILE:
cmdSendStrategicallyFromPile();
break;
case SEND_HAND:
cmdSendHand();
break;
case SEND_HAND_SIZE:
cmdSendHandSize();
break;
case SEND_SUIT:
cmdSendSuit();
break;
case SORT_HAND:
cmdSortHand();
break;
case YOU_WIN:
System.err.println("Game is not over yet!");
break;
case YOU_LOSE:
System.err.println("Game is not over yet!");
break;
default:
System.err.println("Invalid protocol command!");
}
}
/*
* Selects a random card suit.
*/
private Suit selectSuit() {
return Suit.values()[new Random().nextInt(Suit.values().length)];
}
/*
* Retrieve whether client won or lost the game from the server.
*/
private void receiveGameResult() throws ClassNotFoundException, IOException {
System.out.println("\n" + ((GameProtocol) in.readObject()).toString());
}
// __Response methods for server commands__
private void cmdSendName() throws IOException {
out.writeObject(name);
out.reset();
}
private void cmdSendSuit() throws IOException {
Suit randomSuit = selectSuit();
out.writeObject(randomSuit);
out.reset();
}
private void cmdReceiveSuit() throws ClassNotFoundException, IOException {
selectedSuit = (Suit) in.readObject();
if (selectedSuit == null)
throw new IllegalStateException("Selected suit sent to " + name + " is null");
}
private void cmdReceiveCard() throws ClassNotFoundException, IOException {
hand.addCard((Card) in.readObject());
}
private void cmdReceiveCardCollection() throws ClassNotFoundException, IOException {
CardCollection pileFromServer = (CardCollection) in.readObject();
if (pileFromServer == null)
throw new SocketException("Collection received by " + name + "'s client is null");
else if (pileFromServer.isEmpty())
System.err.println("Collection received by " + name +"s client is empty");
this.pile = new CardCollection(pileFromServer);
}
private void cmdSendRandomlyFromHand() throws IOException, ClassNotFoundException {
if (hand.isEmpty())
throw new IllegalStateException(name + "'s client has not received its hand yet!");
int numOfCards = (Integer) in.readObject();
CardCollection toSend = new CardCollection();
for(int i = 0; i < numOfCards; ++i) {
toSend.addCard(hand.drawRandomCard());
}
out.writeObject(toSend);
out.reset();
}
/*
* Draw the maximum scoring cards from the pile and send them to the server.
*/
private void cmdSendStrategicallyFromPile() throws IOException, ClassNotFoundException {
if (pile == null)
throw new IllegalStateException(name + "'s client has not received the game pile yet!");
if (selectedSuit == null)
throw new IllegalStateException("Suit has not been set in " + name + "'s client!");
int numOfCards = (Integer) in.readObject();
CardCollection toSend = new CardCollection();
for(int i = 0; i < numOfCards; ++i) {
toSend.addCard(pile.drawMaxScoreCard(selectedSuit));
}
hand.addCardCollection(toSend); // Add drawn cards from the pile to the hand
out.writeObject(toSend);
out.reset();
}
private void cmdSendStrategicallyFromHand() throws IOException, ClassNotFoundException {
if (hand.isEmpty())
throw new IllegalStateException(name + "'s client has not received its hand yet!");
if (selectedSuit == null)
throw new IllegalStateException("Suit has not been set in " + name + "'s client!");
int numOfCards = (Integer) in.readObject();
CardCollection toSend = new CardCollection();
for(int i = 0; i < numOfCards; ++i) {
toSend.addCard(hand.drawMinScoreCard(selectedSuit));
}
out.writeObject(toSend);
out.reset();
}
private void cmdSendHand() throws IOException {
out.writeObject(hand);
out.reset();
}
private void cmdSendHandSize() throws IOException {
out.writeObject(hand.size());
out.reset();
}
private void cmdSortHand() {
hand.sort();
}
// ______________MAIN______________
public static void main(String[] args) throws Exception {
System.out.print("Enter player name: ");
Scanner cin = new Scanner(System.in);
String playerName = cin.nextLine();
PlayerClient player = new PlayerClient(playerName);
player.openConnection();
player.listen();
cin.close();
}
}