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tic tac toe in c
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#include <stdlib.h> | |
#include <stdbool.h> | |
typedef enum { | |
BLUE = -1, | |
NONE, | |
RED | |
} Player; | |
typedef struct { | |
int size; | |
int **board; | |
int *rowScores; | |
int *colScores; | |
int topLeftBottomRightDiagonalScores; | |
int topRightBottomLeftDiagonalScores; | |
} Game; | |
typedef struct { | |
int x; | |
int y; | |
} Position; | |
Game *CreateGame(int size) { | |
Game *g = malloc(sizeof(Game)); | |
g->size = size; | |
g->board = malloc(size * sizeof(int *)); | |
for (int i = 0; i < size; i++) { | |
g->board[i] = malloc(size * sizeof(int)); | |
} | |
g->rowScores = calloc(size, sizeof(int)); | |
g->colScores = calloc(size, sizeof(int)); | |
g->topRightBottomLeftDiagonalScores = 0; | |
g->topLeftBottomRightDiagonalScores = 0; | |
return g; | |
} | |
bool isPlayerWinner(Game *game, Position *lastMove, Player player) { | |
if (game->rowScores[lastMove->y] == game->size * player || | |
game->colScores[lastMove->x] == game->size * player || | |
game->topRightBottomLeftDiagonalScores == game->size * player || | |
game->topLeftBottomRightDiagonalScores == game->size * player) { | |
return true; | |
} else { | |
return false; | |
} | |
} | |
Player checkForWinner(Game *game, Position *lastMove) { | |
if (isPlayerWinner(game, lastMove, BLUE)) | |
return BLUE; | |
if (isPlayerWinner(game, lastMove, RED)) | |
return RED; | |
return NONE; | |
} | |
Player move(Game *game, Position *lastMove, Player player) { | |
game->board[lastMove->y][lastMove->x] = player; | |
game->rowScores[lastMove->y] += player; | |
game->colScores[lastMove->x] += player; | |
if (lastMove->y == lastMove->x) { | |
game->topLeftBottomRightDiagonalScores += player; | |
} | |
if (lastMove->x == game->size - lastMove->x) { | |
game->topRightBottomLeftDiagonalScores += player; | |
} | |
return checkForWinner(game, lastMove); | |
} | |
Position *CreatePosition(int x, int y) { | |
Position *position = malloc(sizeof(position)); | |
position->x = x; | |
position->y = y; | |
return position; | |
} | |
int main (int argc, char const *argv[]) { | |
Game *game = CreateGame(2); | |
printf("%d\n", move(game, CreatePosition(0, 0), BLUE)); | |
printf("%d\n", move(game, CreatePosition(0, 1), RED)); | |
printf("%d\n", move(game, CreatePosition(1, 1), BLUE)); | |
return 0; | |
} |
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