Create initial game state based on seed

src/ch/epfl/chacun/gui/Main.java

@@ -0,0 +1,48 @@
+package ch.epfl.chacun.gui;
+
+import ch.epfl.chacun.*;
+import javafx.application.Application;
+import javafx.stage.Stage;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.random.RandomGenerator;
+import java.util.random.RandomGeneratorFactory;
+import java.util.stream.Collectors;
+
+/**
+ *
+ * @author Maxence Espagnet (sciper: 372808)
+ * @author Balthazar Baillat (sciper: 373420)
+ */
+public class Main extends Application {
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+        Parameters params = getParameters();
+        List<String> playerNames = params.getUnnamed();
+        String rawSeed = params.getNamed().get("seed");
+
+        Preconditions.checkArgument(playerNames.size() >= 2 && playerNames.size() <= 5);
+
+        // Apply the seed to ALL tiles
+        long seed = Long.parseUnsignedLong(rawSeed);
+        RandomGenerator shuffler = RandomGeneratorFactory.getDefault().create(seed);
+        List<Tile> tiles = new ArrayList<>(Tiles.TILES);
+        Collections.shuffle(tiles, shuffler);
+        // Group tiles by kind to create the decks
+        Map<Tile.Kind, List<Tile>> decks = tiles.stream().collect(Collectors.groupingBy(Tile::kind));
+        TileDecks tileDecks = new TileDecks(decks);
+
+        TextMaker textMaker = new TextMakerFr(Map.of());
+        MessageBoard messageBoard = new MessageBoard(textMaker, List.of());
+        GameState gameState = new GameState(PlayerColor.ALL.subList(0, playerNames.size()), tileDecks,
+                null, Board.EMPTY, GameState.Action.START_GAME, messageBoard);
+    }
+}