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Tic-tac-toe Tutorial (Step 2)
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#include <iostream> | |
using namespace std; | |
/** | |
* Draw a 3x3 tic-tac-toe board with row and column labels | |
* The cell data in board will be interpreted as follows: | |
* 1 = owned by 'x' | |
* 2 = owned by 'o' | |
* all other values = empty | |
* | |
* @param int[3][3] board The current state of each board cell | |
* @return void | |
*/ | |
void drawBoard(int board[][3]) { | |
cout << " " << " A B C " << endl; | |
cout << " " << "+---+---+---+" << endl; | |
for (int row = 0; row < 3; row++) { | |
cout << row << " "; | |
for (int col = 0; col < 3; col++) { | |
switch (board[row][col]) { | |
case 1: cout << "| " << "x" << " "; break; | |
case 2: cout << "| " << "o" << " "; break; | |
default:cout << "| " << " " << " "; break; | |
} | |
} | |
cout << "|" << endl; | |
cout << " " << " " << "+---+---+---+" << endl; | |
} | |
} | |
int main (int argc, char* argv[]) | |
{ | |
// State variables | |
// | |
// Board: | |
// 0 1 2 | |
// +---+---+---+ | |
// 0 | | | x | x = board[0][2] | |
// +---+---+---+ | |
// 1 | | | | | |
// +---+---+---+ | |
// 2 | | | | | |
// +---+---+---+ | |
// | |
// Each board square will be in one of three possible | |
// states: 0=empty, 1=owned by 'x', 2=owned by 'o'. | |
int board[3][3] = {}; | |
// Flag to determine whether or not the game is finished | |
// false: game should end: someone has won or there are no more valid moves | |
// true: game may continue | |
bool gameIsValid = true; | |
// Flag to determine whose turn it is | |
// false: it is the computer's turn to make a move | |
// true: it is the player's turn to make a move | |
bool playerTurn = true; | |
/* Game Flow */ | |
// 1. determine who goes first | |
// 2. Enter the main game "loop" | |
while (gameIsValid) { | |
// a. draw the board | |
drawBoard(board); | |
// b. current player makes a move | |
// c. check if the current player has just won | |
// d. swap current player | |
} | |
// 3. print final game result message | |
} |
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