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-rw-r--r-- | src/ch/epfl/xblast/client/GameStateDeserializer.java | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/ch/epfl/xblast/client/GameStateDeserializer.java b/src/ch/epfl/xblast/client/GameStateDeserializer.java new file mode 100644 index 0000000..f95c515 --- /dev/null +++ b/src/ch/epfl/xblast/client/GameStateDeserializer.java | |||
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1 | package ch.epfl.xblast.client; | ||
2 | |||
3 | import ch.epfl.xblast.PlayerID; | ||
4 | import ch.epfl.xblast.RunLengthEncoder; | ||
5 | import ch.epfl.xblast.SubCell; | ||
6 | import ch.epfl.xblast.client.GameState.Player; | ||
7 | import ch.epfl.xblast.server.Ticks; | ||
8 | |||
9 | import java.util.ArrayList; | ||
10 | import java.util.List; | ||
11 | import java.awt.Image; | ||
12 | import java.util.stream.Collectors; | ||
13 | |||
14 | /** | ||
15 | * @author Timothée FLOURE (257420) | ||
16 | */ | ||
17 | public final class GameStateDeserializer { | ||
18 | /** | ||
19 | * Image collections folders | ||
20 | */ | ||
21 | private final static String BOARD_IMAGES_FOLDER = "block"; | ||
22 | private final static String EXPLOSION_IMAGES_FOLDER = "explosion"; | ||
23 | private final static String PLAYER_IMAGES_FOLDER = "player"; | ||
24 | private final static String TIME_IMAGES_FOLDER = "score"; | ||
25 | private final static String SCORE_IMAGES_FOLDER = "score"; | ||
26 | |||
27 | /** | ||
28 | * Serialized data chunks | ||
29 | */ | ||
30 | private final static int NUMBER_OF_PLAYERS = 4; | ||
31 | private final static int PLAYER_CHUNK_SIZE = 6; | ||
32 | private final static int PLAYER_SIZE = NUMBER_OF_PLAYERS * PLAYER_CHUNK_SIZE; | ||
33 | private final static int TIME_LINE_SIZE = (Ticks.GAME_DURATION / 2); | ||
34 | |||
35 | /** | ||
36 | * Images ID | ||
37 | */ | ||
38 | private final static int TIME_LINE_LED_ON_IMAGE_ID = 21; | ||
39 | private final static int TIME_LINE_LED_OFF_IMAGE_ID = 20; | ||
40 | private final static int SCORE_TEXT_MIDDLE_IMAGE_ID = 10; | ||
41 | private final static int SCORE_TEXT_RIGHT_IMAGE_ID = 11; | ||
42 | private final static int SCORE_TILE_VOID_IMAGE_ID = 12; | ||
43 | |||
44 | /** | ||
45 | * Deserialize an encoded chunk of data and link it to images. | ||
46 | * | ||
47 | * @param data serialized data | ||
48 | * @param imageCollection ImageCollection related to the type of data | ||
49 | * @return a list of Images corresponding to the serialized element | ||
50 | */ | ||
51 | private static List<Image> deserializeChunk(List<Byte> data, ImageCollection imageCollection) { | ||
52 | return RunLengthEncoder.decode(data).stream() | ||
53 | .map(c -> imageCollection.imageOrNull(Byte.toUnsignedInt(c))) | ||
54 | .collect(Collectors.toList()); | ||
55 | } | ||
56 | |||
57 | /** | ||
58 | * Build a list of players given the serialized data.. | ||
59 | * | ||
60 | * @param serializedPlayers the serialized players | ||
61 | * @return a list of players built from the serialized players | ||
62 | */ | ||
63 | private static List<Player> deserializePlayers(List<Byte> serializedPlayers) { | ||
64 | List<Player> players = new ArrayList<>(); | ||
65 | |||
66 | for (int i = 0; i < NUMBER_OF_PLAYERS; i++) { | ||
67 | players.add( | ||
68 | deserializePlayer( | ||
69 | serializedPlayers.subList(i * PLAYER_CHUNK_SIZE, (i+1) * PLAYER_CHUNK_SIZE), i | ||
70 | ) | ||
71 | ); | ||
72 | } | ||
73 | |||
74 | return players; | ||
75 | } | ||
76 | |||
77 | /** | ||
78 | * Generate a Player from the serialized data. | ||
79 | * | ||
80 | * @param serializedPlayer a serialized player | ||
81 | * @return a player built from the serialized player | ||
82 | */ | ||
83 | private static Player deserializePlayer(List<Byte> serializedPlayer, int i) { | ||
84 | PlayerID id = PlayerID.values()[i]; | ||
85 | int lives = Byte.toUnsignedInt(serializedPlayer.get(0)); | ||
86 | SubCell position = new SubCell( | ||
87 | Byte.toUnsignedInt(serializedPlayer.get(1)), | ||
88 | Byte.toUnsignedInt(serializedPlayer.get(2)) | ||
89 | ); | ||
90 | Image image = (new ImageCollection(PLAYER_IMAGES_FOLDER)).imageOrNull(Byte.toUnsignedInt(serializedPlayer.get(3))); | ||
91 | |||
92 | return new Player(id, lives, position, image); | ||
93 | } | ||
94 | |||
95 | /** | ||
96 | * Generate the list of images composing the scores. | ||
97 | * | ||
98 | * @param players players | ||
99 | * @return the scores of the given players | ||
100 | */ | ||
101 | private static List<Image> buildScores(List<Player> players) { | ||
102 | List<Image> scores = new ArrayList<>(); | ||
103 | ImageCollection imageCollection = new ImageCollection(SCORE_IMAGES_FOLDER); | ||
104 | |||
105 | scores.addAll(buildPlayerScore(players.get(0), imageCollection)); | ||
106 | |||
107 | return scores; | ||
108 | } | ||
109 | |||
110 | /** | ||
111 | * Generate the images composing the score of one player. | ||
112 | * | ||
113 | * @param player serialized data corresponding to the player | ||
114 | * @param imageCollection image collection related to the scores | ||
115 | * @return the score of the given player | ||
116 | */ | ||
117 | private static List<Image> buildPlayerScore(Player player, ImageCollection imageCollection) { | ||
118 | List<Image> playerScore = new ArrayList<>(); | ||
119 | |||
120 | if (player.lives() < 1) | ||
121 | playerScore.add(imageCollection.imageOrNull(0 + (player.id().ordinal()*2))); | ||
122 | else | ||
123 | playerScore.add(imageCollection.imageOrNull(1 + (player.id().ordinal()*2))); | ||
124 | |||
125 | playerScore.add(imageCollection.imageOrNull(SCORE_TEXT_MIDDLE_IMAGE_ID)); | ||
126 | playerScore.add(imageCollection.imageOrNull(SCORE_TEXT_RIGHT_IMAGE_ID)); | ||
127 | return playerScore; | ||
128 | } | ||
129 | /** | ||
130 | * Generate the list of images composing the time "line". | ||
131 | * | ||
132 | * @param time the remaining time | ||
133 | * @return the list of images composing the time "line" | ||
134 | */ | ||
135 | private static List<Image> buildTimeLine(Byte time) { | ||
136 | List<Image> ticks = new ArrayList<>(); | ||
137 | ImageCollection imageCollection = new ImageCollection(TIME_IMAGES_FOLDER); | ||
138 | |||
139 | for (int i = 0; i < TIME_LINE_SIZE; i++) { | ||
140 | if (i < Byte.toUnsignedInt(time)) | ||
141 | ticks.add(imageCollection.imageOrNull(TIME_LINE_LED_ON_IMAGE_ID)); | ||
142 | else | ||
143 | ticks.add(imageCollection.imageOrNull(TIME_LINE_LED_OFF_IMAGE_ID)); | ||
144 | } | ||
145 | return ticks; | ||
146 | } | ||
147 | |||
148 | /** | ||
149 | * Deserialize an incoming GameState. | ||
150 | * | ||
151 | * @param serializedData the serialized gameState | ||
152 | * @return a new GameState build from the serialized data. | ||
153 | */ | ||
154 | public static GameState deserialize(List<Byte> serializedData) { | ||
155 | |||
156 | // Indexes | ||
157 | int boardIndex = 1; | ||
158 | int boardSize = serializedData.get(boardIndex); | ||
159 | int explosionsIndex = boardIndex + boardSize; | ||
160 | int explosionsSize = serializedData.get(explosionsIndex); | ||
161 | int playersIndex = explosionsIndex + explosionsSize; | ||
162 | Byte time = serializedData.get(serializedData.size()); | ||
163 | |||
164 | // Deserialize the Board | ||
165 | List<Image> board = deserializeChunk( | ||
166 | serializedData.subList(boardIndex, boardSize), | ||
167 | new ImageCollection(BOARD_IMAGES_FOLDER) | ||
168 | ); | ||
169 | |||
170 | // Deserialize the explosions | ||
171 | List<Image> explosions = deserializeChunk( | ||
172 | serializedData.subList(boardIndex,boardSize), | ||
173 | new ImageCollection(EXPLOSION_IMAGES_FOLDER) | ||
174 | ); | ||
175 | |||
176 | // Deserialize the players | ||
177 | List<Player> players = deserializePlayers(serializedData.subList(playersIndex,PLAYER_SIZE)); | ||
178 | |||
179 | // Generate the scores and the time "line" | ||
180 | List<Image> scores = buildScores(players); | ||
181 | List<Image> timeLine = buildTimeLine(time); | ||
182 | |||
183 | return new GameState(players, board, explosions, scores, timeLine); | ||
184 | } | ||
185 | } | ||