1 files changed, 145 insertions, 0 deletions

diff --git a/src/ch/epfl/xblast/server/Board.java b/src/ch/epfl/xblast/server/Board.java
new file mode 100644
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--- /dev/null
+++ b/src/ch/epfl/xblast/server/Board.java
@@ -0,0 +1,145 @@
+package ch.epfl.xblast.server;
+
+import ch.epfl.cs108.Sq;
+import ch.epfl.xblast.Cell;
+import ch.epfl.xblast.Lists;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A two-dimensional Board in which the game takes place.
+ *
+ * @author Pacien TRAN-GIRARD (261948)
+ * @author Timothée FLOURE (257420)
+ */
+public final class Board {
+
+    private static final int BLOCKS_LIST_SIZE = 195;
+    private static final int BOARD_ROWS = 13;
+    private static final int BOARD_COLUMNS = 15;
+    private static final int INNER_BOARD_ROWS = BOARD_ROWS - 2;
+    private static final int INNER_BOARD_COLUMNS = BOARD_COLUMNS - 2;
+    private static final int QUADRANT_ROWS = 6;
+    private static final int QUADRANT_COLUMNS = 7;
+
+    /**
+     * Throw an exception if the matrix does not have the given number of rows/columns.
+     *
+     * @param matrix  the tested matrix
+     * @param rows    the expected number of rows
+     * @param columns the expected number of columns
+     * @throws IllegalArgumentException if the matrix does not comply with the given sizes.
+     */
+    private static void checkBlockMatrix(List<List<Block>> matrix, int rows, int columns) {
+        if (matrix == null || matrix.size() != rows)
+            throw new IllegalArgumentException();
+
+        for (int i = 0; i < rows; i++)
+            if (matrix.get(i).size() != columns)
+                throw new IllegalArgumentException();
+    }
+
+    /**
+     * List containing all the blocks of the board.
+     */
+    private List<Sq<Block>> blocks;
+
+    /**
+     * Instantiates a new Board with the given sequence of blocks.
+     *
+     * @param blocks sequence containing all the blocks of the Boards
+     * @throws IllegalArgumentException if the blocks is not composed of BLOC_LIST_SIZE elements
+     */
+    public Board(List<Sq<Block>> blocks) {
+        if (blocks == null || blocks.size() != BLOCKS_LIST_SIZE)
+            throw new IllegalArgumentException();
+
+        this.blocks = blocks;
+    }
+
+    /**
+     * Build a new Board with the given Matrix.
+     *
+     * @param rows list containing all the rows
+     * @return a new Board built with given rows
+     * @throws IllegalArgumentException if rows is not BOARD_ROWS * BOARD_COLUMNS
+     */
+    public static Board ofRows(List<List<Block>> rows) {
+        checkBlockMatrix(rows, BOARD_ROWS, BOARD_COLUMNS);
+        List<Sq<Block>> blocksSequence = new ArrayList<>();
+
+        for (List<Block> row : rows)
+            for (Block aRow : row)
+                blocksSequence.add(Sq.constant(aRow));
+
+        return new Board(blocksSequence);
+    }
+
+    /**
+     * Build a walled board filled with the given inner rows
+     *
+     * @param innerBlocks lists of the internal rows
+     * @return a new walled board filled with the given rows
+     * @throws IllegalArgumentException if innerBlocks is not INNER_BOARD_ROWS * INNER_BOARD_COLUMNS
+     */
+    public static Board ofInnerBlocksWalled(List<List<Block>> innerBlocks) {
+        checkBlockMatrix(innerBlocks, INNER_BOARD_ROWS, INNER_BOARD_COLUMNS);
+        List<List<Block>> rowsList = new ArrayList<>();
+        List<Block> wallLine = new ArrayList<>();
+
+        for (int i = 0; i < BOARD_COLUMNS; i++)
+            wallLine.add(Block.INDESTRUCTIBLE_WALL);
+
+        for (List<Block> row : innerBlocks) {
+            row.add(0, Block.INDESTRUCTIBLE_WALL);
+            row.add(Block.INDESTRUCTIBLE_WALL);
+
+            rowsList.add(row);
+        }
+
+        rowsList.add(0, wallLine);
+        rowsList.add(wallLine);
+
+        return ofRows(rowsList);
+    }
+
+    /**
+     * Build a symmetric walled board from the NWB quadrant.
+     *
+     * @param quadrantNWBlocks the NW quadrant of the board (inner blocks only!)
+     * @return a new walled board symmetrically filled with the given NW quadrant
+     * @throws IllegalArgumentException if quadrantNWBlocks is not QUADRANT_ROWS * QUADRANT_COLUMNS
+     */
+    public static Board ofQuadrantNWBlocksWalled(List<List<Block>> quadrantNWBlocks) {
+        checkBlockMatrix(quadrantNWBlocks, QUADRANT_ROWS, QUADRANT_COLUMNS);
+        List<List<Block>> rowsList = new ArrayList<>();
+        List<List<Block>> halfInnerBoard = Lists.mirrored(quadrantNWBlocks);
+
+        for (List<Block> aHalfInnerBoard : halfInnerBoard)
+            rowsList.add(Lists.mirrored(aHalfInnerBoard));
+
+        return ofInnerBlocksWalled(rowsList);
+    }
+
+    /**
+     * Return the sequence of blocks related to the given cell.
+     *
+     * @param c cell
+     * @return the sequence of blocks related to the given cell.
+     */
+    public Sq<Block> blocksAt(Cell c) {
+        return blocks.get(c.rowMajorIndex());
+    }
+
+    /**
+     * Returns the block related to the given cell.
+     *
+     * @param c cell
+     * @return the first block of the sequence related to the given cell
+     */
+    public Block blockAt(Cell c) {
+        return blocksAt(c).head();
+    }
+
+}