Using the code given in class as a base, write functions to move each of the che
ID: 674898 • Letter: U
Question
Using the code given in class as a base, write functions to move each of the chess pieces. Do them in the following order to maximize your grade:
Piece
% grade
Rook
20%
Bishop
20%
Queen
20%
King
20%
Knight
10%
Pawn
10%
You do not have to concern yourself with:
En passante
Castling
Moving into check
Any piece capturing another piece; assume that they can not collide for now.
All of these must be accessed as shown below:
int main() {
Board board;
cout << "BEGINNING BOARD:" << endl;
board.displayBoard();
board.turn(1, 0, "S", 1);
board.turn(2, 0, "N", 1);
board.turn(2, 0, "S", 1);
board.turn(3, 0, "S", 1);
board.turn(0, 0, "S", 3);
board.turn(3, 0, "E", 5);
board.turn(3, 5, "N", 3);
cout << "ENDING BOARD:" << endl;
board.displayBoard();
return 0;
}
REMEMBER:
Catch out-of-bounds errors!
Do not use any global variables!
SAMPLE RUN (FROM ABOVE CODE IN main) ON THE FOLLOWING PAGES!
BEGINNING BOARD:
CURRENT BOARD:
BR | BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BP FROM [1, 0] Direction:S #steps: 1
CURRENT BOARD:
BR | BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BP FROM [2, 0] Direction:N #steps: 1
Black pawns can not move N!
Failed to move the piece the entire way!
CURRENT BOARD:
BR | BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BP FROM [2, 0] Direction:S #steps: 1
CURRENT BOARD:
BR | BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BP FROM [3, 0] Direction:S #steps: 1
CURRENT BOARD:
BR | BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BR FROM [0, 0] Direction:S #steps: 3
CURRENT BOARD:
| BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BR | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BR FROM [3, 0] Direction:E #steps: 5
CURRENT BOARD:
| BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | BR | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BR FROM [3, 5] Direction:SE #steps: 2
Rooks can not move SE!
Failed to move the piece the entire way!
CURRENT BOARD:
| BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | BR | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BR FROM [3, 5] Direction:N #steps: 3
Space [ 1, 5] Contains [BP]
Failed to move the piece the entire way!
CURRENT BOARD:
| BN | BB | BQ | BK | BB | BN | BR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| BP | BP | BP | BP | BP | BP | BP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | BR | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
BP | | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
| | | | | | | |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WP | WP | WP | WP | WP | WP | WP | WP |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
WR | WN | WB | WQ | WK | WB | WN | WR |
| | | | | | | |
----| ----| ----| ----| ----| ----| ----| ----|
MORE Þ
*** MOVING BR FROM [2, 5] Direction:E #steps: 30
Assertion failed: (toCol >= 0) && (toCol < NUM_COLS), file c:userssshafferdoc
uments isual studio 2013projectsssignment5ssignment5.cpp, line 196
Press any key to continue . . .
Piece
% grade
Rook
20%
Bishop
20%
Queen
20%
King
20%
Knight
10%
Pawn
10%
Explanation / Answer
#include <iostream>
#include <string>
#include <assert.h>
using namespace std;
const int NUM_ROWS = 8;
const int NUM_COLS = 8;
class Cell {
char piece;
char color;
public:
Cell();
void place(char color, char piece);
string take();
string getPiece();
};
Cell::Cell() {
piece = ' ';
color = ' ';
}
string Cell::take() {
string result = "";
result = result.append(1, color);
result = result.append(1, piece);
piece = ' ';
color = ' ';
return result;
}
void Cell::place(char newColor, char newPiece) {
assert((newColor == 'W') || (newColor == 'B'));
color = newColor;
assert((newPiece == 'R') || (newPiece == 'K') || (newPiece == 'B') || (newPiece == 'Q') || (newPiece == 'K') || (newPiece == 'N') || (newPiece == 'P'));
piece = newPiece;
}
string Cell::getPiece() {
string result = "";
result = result.append(1, color);
result = result.append(1, piece);
return result;
}
class Board {
Cell board[NUM_ROWS][NUM_COLS];
void displayLine();
public:
Board();
void displayBoard();
void place(int, int, char, char);
string take(int, int);
void movePieceOneStep(string, string, int&, int&);
bool cellEmpty(int, int);
string look(int, int);
void turn(int, int, string, int);
};
void Board::place(int row, int col, char color, char piece) {
assert((row >= 0) && (row < NUM_ROWS));
assert((col >= 0) && (col < NUM_COLS));
board[row][col].place(color, piece);
}
string Board::take(int row, int col) {
assert((row >= 0) && (row < NUM_ROWS));
assert((col >= 0) && (col < NUM_COLS));
return board[row][col].take();
}
bool Board::cellEmpty(int toRow, int toCol){
string cell = board[toRow][toCol].getPiece();
if( cell.empty() ){
return true;
}
else {
return false;
}
}
string Board::look(int toRow, int toCol){
string result = board[toRow][toCol].getPiece();
return result;
}
Board::Board() {
board[0][0].place('B', 'R');
board[0][1].place('B', 'N');
board[0][2].place('B', 'B');
board[0][3].place('B', 'Q');
board[0][4].place('B', 'K');
board[0][5].place('B', 'B');
board[0][6].place('B', 'N');
board[0][7].place('B', 'R');
for (int c = 0; c < NUM_COLS; c++) {
board[1][c].place('B', 'P');
}
board[NUM_COLS - 1][0].place('W', 'R');
board[NUM_COLS - 1][1].place('W', 'N');
board[NUM_COLS - 1][2].place('W', 'B');
board[NUM_COLS - 1][4].place('W', 'K');
board[NUM_COLS - 1][3].place('W', 'Q');
board[NUM_COLS - 1][5].place('W', 'B');
board[NUM_COLS - 1][6].place('W', 'N');
board[NUM_COLS - 1][7].place('W', 'R');
for (int c = 0; c < NUM_COLS; c++) {
board[NUM_COLS-2][c].place('W', 'P');
}
}
void Board::displayLine() {
cout << endl;
for (int x = 0; x < NUM_COLS; x++) {
cout << " | ";
}
cout << endl;
for (int x = 0; x < NUM_COLS; x++) {
cout << "----| ";
}
cout << endl;
}
void Board::displayBoard() {
cout << endl << "CURRENT BOARD:" << endl << endl;
for (int r = 0; r < NUM_ROWS; r++) {
for (int c = 0; c < NUM_COLS; c++) {
cout << " " << board[r][c].getPiece() << " | ";
}
displayLine();
}
cout << endl << endl;
}
void Board::movePieceOneStep(string piece, string direction,
int &row, int &col) {
assert((row >= 0) && (row < NUM_ROWS));
assert((col >= 0) && (col < NUM_COLS));
int toRow = row;
int toCol = col;
if (direction == "S")
toRow = row + 1;
else if (direction == "N")
toRow = row - 1;
else if (direction == "E")
toCol = col + 1;
else if (direction == "W")
toCol = col - 1;
else if (direction == "NW") {
toRow = row - 1;
toCol = col - 1;
}
else if (direction == "NE") {
toRow = row - 1;
toCol = col + 1;
}
else if (direction == "SW") {
toRow = row + 1;
toCol = col - 1;
}
else if (direction == "SE") {
toRow = row + 1;
toCol = col + 1;
}
else {
cout << "INVALID DIRECTION!" << endl;
assert(false); // force a failure
}
assert((toRow >= 0) && (toRow < NUM_ROWS));
assert((toCol >= 0) && (toCol < NUM_COLS));
if (cellEmpty(toRow, toCol)) {
cout << "Space [ " << toRow << ", " << toCol <<
"] Contains [" << look(toRow, toCol) << "]" << endl;
}
else {
piece = take(row, col);
place(toRow, toCol, piece.at(0), piece.at(1));
row = toRow;
col = toCol;
}
}
void Board::turn(int row, int col, string direction, int space){
string piece = board[row][col].getPiece();
for(int i = 0; i < space; i++) {
movePieceOneStep(piece, direction, row, col) ;
}
}
int main() {
Board board;
cout << "BEGINNING BOARD:" << endl;
board.displayBoard();
board.turn(0, 2, "S", 1);
cout << "ENDING BOARD:" << endl;
board.displayBoard();
return 0;
}
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