dev: started to write Board constructor, added all derived Pieces

Board.cpp

@@ -1,39 +1,77 @@
-/* 
+/*
  * File:   Board.cpp
  * Author: amr
- * 
+ *
  * Created on July 30, 2025, 9:20 PM
  */
 
 #include "Board.hpp"
 
+/*
+ * This is how the chessboard is organized in memory
+ * This handy dandy chart should help me from getting totally
+ * confused!
+ *
+ *       FILE    0     1     2     3     4     5     6     7
+ *              'a'   'b'   'c'   'd'   'e'   'f'   'g'   'h'
+ *           +-----+-----+-----+-----+-----+-----+-----+-----+
+ *  RANK 0   | A1  | B1  | C1  | D1  | E1  | F1  | G1  | H1  |   boardGrid[0][0] to boardGrid[0][7]
+ *  RANK 1   | A2  | B2  | C2  | D2  | E2  | F2  | G2  | H2  |   boardGrid[1][0] to boardGrid[1][7]
+ *  RANK 2   | A3  | B3  | C3  | D3  | E3  | F3  | G3  | H3  |   ...
+ *  RANK 3   | A4  | B4  | C4  | D4  | E4  | F4  | G4  | H4  |
+ *  RANK 4   | A5  | B5  | C5  | D5  | E5  | F5  | G5  | H5  |
+ *  RANK 5   | A6  | B6  | C6  | D6  | E6  | F6  | G6  | H6  |
+ *  RANK 6   | A7  | B7  | C7  | D7  | E7  | F7  | G7  | H7  |
+ *  RANK 7   | A8  | B8  | C8  | D8  | E8  | F8  | G8  | H8  |   boardGrid[7][0] to boardGrid[7][7]
+ *           +-----+-----+-----+-----+-----+-----+-----+-----+
+ *
+ */
+
 Board::Board() {
     // set up the board grid with smart pointers
     // initialize each square with a Piece, set to PIECE_EMPTY
     boardGrid.resize(8);
-    for(int i = 0; i < 8; i++) {
+    for (int i = 0; i < 8; i++) {
         boardGrid[i].resize(8);
-        switch(i) {
+        switch (i) {
             case 0:
                 // white back rank
+                boardGrid[i][0] = std::make_unique<Rook>(PIECE_WHITE);
+                boardGrid[i][1] = std::make_unique<Knight>(PIECE_WHITE);
+                boardGrid[i][2] = std::make_unique<Bishop>(PIECE_WHITE);
+                boardGrid[i][3] = std::make_unique<Queen>(PIECE_WHITE);
+                boardGrid[i][4] = std::make_unique<King>(PIECE_WHITE);
+                boardGrid[i][5] = std::make_unique<Bishop>(PIECE_WHITE);
+                boardGrid[i][6] = std::make_unique<Knight>(PIECE_WHITE);
+                boardGrid[i][7] = std::make_unique<Rook>(PIECE_WHITE);
                 break;
             case 1:
                 // white pawn rank
+                for (int j = 0; j <= 8; j++) {
+                    boardGrid[i][j] = std::make_unique<Pawn>(PIECE_WHITE);
+                }
                 break;
             case 2:
             case 3:
             case 4:
             case 5:
-                //empty squares
+                continue;
-                for(int j = 0; j <= 8; j++) {
-                    boardGrid[i][j] = std::make_unique<Piece>(PIECE_EMPTY);
-                }
-                break;
             case 6:
                 // black pawn rank
+                for (int j = 0; j <= 8; j++) {
+                    boardGrid[i][j] = std::make_unique<Pawn>(PIECE_BLACK);
+                }
                 break;
             case 7:
                 // black back rank
+                boardGrid[i][0] = std::make_unique<Rook>(PIECE_BLACK);
+                boardGrid[i][1] = std::make_unique<Knight>(PIECE_BLACK);
+                boardGrid[i][2] = std::make_unique<Bishop>(PIECE_BLACK);
+                boardGrid[i][3] = std::make_unique<Queen>(PIECE_BLACK);
+                boardGrid[i][4] = std::make_unique<King>(PIECE_BLACK);
+                boardGrid[i][5] = std::make_unique<Bishop>(PIECE_BLACK);
+                boardGrid[i][6] = std::make_unique<Knight>(PIECE_BLACK);
+                boardGrid[i][7] = std::make_unique<Rook>(PIECE_BLACK);
             default:
                 break;
         }
@@ -44,9 +82,10 @@ Board::~Board() {
 }
 
 void Board::setupInitialPosition() {
-    
+
     return;
 }
+
 void Board::movePiece(Square from, Square to) {
     return;
 }

Piece.cpp

@@ -1,7 +1,7 @@
-/* 
+/*
  * File:   Piece.cpp
  * Author: amr
- * 
+ *
  * Created on July 30, 2025, 9:21 PM
  */
 
@@ -24,12 +24,22 @@ std::vector<Move> Piece::getLegalMoves(const Square &from, const Board &board) c
 
 std::vector<Move> King::getLegalMoves(const Square &from, const Board &board) const {
     std::vector<Move> moveList;
+    const int directions[8][2] = {
+        {-1, 0}, // Up
+        {-1, -1}, // up-left
+        {-1, 1}, // up-right
+        {1, 0}, // Down
+        {1, -1}, // down-left
+        {1, 1}, // down-right
+        {0, -1}, // Left
+        {0, 1} // Right
+    };
 
 }
 
 std::vector<Move> Rook::getLegalMoves(const Square &from, const Board &board) const {
     std::vector<Move> moveList;
-    const int directions[8][2] = {
+    const int directions[4][2] = {
         {-1, 0}, // Up
         {1, 0}, // Down
         {0, -1}, // Left
@@ -58,6 +68,5 @@ std::vector<Move> Rook::getLegalMoves(const Square &from, const Board &board) co
         }
     }
 
-    // calculate legal moves somehow
     return moveList;
 }

Piece.hpp

@@ -44,14 +44,33 @@ public:
 };
 
 class King : public Piece {
-public:
+    King(PieceColour colour) : Piece(colour) {}
-  King(PieceColour colour) : Piece(colour) {}
+    virtual std::vector<Move> getLegalMoves(const Square &from, const Board &board) const override;
-  virtual std::vector<Move> getLegalMoves(const Square &from, const Board &board) const override;
 };
 
-class Rook : Public Piece {
+class Rook : public Piece {
     Rook(PieceColour colour) : Piece(colour) {}
     virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
 };
+
+class Queen : public Piece {
+    Queen(PieceColour colour) : Piece(colour) {}
+    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
+};
+
+class Knight: public Piece {
+    Knight(PieceColour colour) : Piece(colour) {}
+    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
+};
+
+class Bishop : public Piece {
+    Bishop(PieceColour colour) : Piece(colour) {}
+    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
+};
+
+class Pawn : public Piece {
+    Pawn(PieceColour colour) : Piece(colour) {}
+    virtual std::vector<Move> getLegalMoves(const square &from, const Board &board) const override;
+};
 #endif // PIECE_HPP