My game of fifteen is somehow still not working. here is the code for move()
bool move(int tile)
{
// TODO
// find location of specified tile using linear search
//find tile location in nice iterative manner.
//nested for loop
int swappy;
for (int i =0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
if (board[i][j] == tile) {
//edit the board array only if move is legal
// if tile is above blank{
if (i2 != 0) {
if (tile == board[i2 - 1][j2]) {
//swap them
swappy = tile;
tile = board[i2 - 1][j2];
board[i2 -1][j2] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
if (i2 != d -1){
if (tile == board[i2 + 1][j2]) {
//swap them
swappy = tile;
tile = board[i2 + 1][j2];
board[i2 + 1][j2] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
//else if tile is on the left {
if (j2 != 0){
if (tile == board[i2][j2 - 1]) {
//swap them
swappy = tile;
tile = board[i2][j2 - 1];
board[i2 ][j2 -1] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
if (j2 != d -1){
if (tile == board[i2][j2 + 1]) {
//swap them
swappy = tile;
tile = board[i2][j2+1];
board[i2][j2+1] = tile;
//keep track of where blank is using two variables
i2 = i;
j2 = j;
return true;
}
}
// BUG: THE TIL LOCATIONS DONT MOVE
else {
// illegal move!
return false;
}
}
}
}
return false;
}
and here is the code for my whole fifteen.c
#define _XOPEN_SOURCE 500
#include <cs50.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
// constants
#define DIM_MIN 3
#define DIM_MAX 9
// board
int board[DIM_MAX][DIM_MAX];
// dimensions
int d;
int i2;
int j2;
// prototypes
void clear(void);
void greet(void);
void init(void);
void draw(void);
bool move(int tile);
bool won(void);
int main(int argc, string argv[])
{
// ensure proper usage
if (argc != 2)
{
printf("Usage: fifteen d\n");
return 1;
}
// ensure valid dimensions
d = atoi(argv[1]);
if (d < DIM_MIN || d > DIM_MAX)
{
printf("Board must be between %i x %i and %i x %i, inclusive.\n",
DIM_MIN, DIM_MIN, DIM_MAX, DIM_MAX);
return 2;
}
i2 = d-1;
j2 = d-1;
// open log
FILE *file = fopen("log.txt", "w");
if (file == NULL)
{
return 3;
}
// greet user with instructions
greet();
// initialize the board
init();
// accept moves until game is won
while (true)
{
// clear the screen
clear();
// draw the current state of the board
draw();
// log the current state of the board (for testing)
for (int i = 0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
fprintf(file, "%i", board[i][j]);
if (j < d - 1)
{
fprintf(file, "|");
}
}
fprintf(file, "\n");
}
fflush(file);
// check for win
if (won())
{
printf("ftw!\n");
break;
}
// prompt for move
printf("Tile to move: ");
int tile = get_int();
// quit if user inputs 0 (for testing)
if (tile == 0)
{
break;
}
// log move (for testing)
fprintf(file, "%i\n", tile);
fflush(file);
// move if possible, else report illegality
if (!move(tile))
{
printf("\nIllegal move.\n");
usleep(50000);
}
// sleep thread for animation's sake
usleep(50000);
}
// close log
fclose(file);
// success
return 0;
}
/**
* Clears screen using ANSI escape sequences.
*/
void clear(void)
{
printf("\033[2J");
printf("\033[%d;%dH", 0, 0);
}
/**
* Greets player.
*/
void greet(void)
{
clear();
printf("WELCOME TO GAME OF FIFTEEN\n");
usleep(2000000);
}
/**
* Initializes the game's board with tiles numbered 1 through d*d - 1
* (i.e., fills 2D array with values but does not actually print them).
*/
void init(void)
{
// TODO
int counter = d * d - 1;
for (int i =0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
// set title's value
board[i][j] = counter;
counter--;
}
board[d][d] = 0;
if (d % 2 == 0){
board[d][d-1] = 2;
board[d][d-2] = 1;
}
}
}
/**
* Prints the board in its current state.
*/
void draw(void)
{
// TODO
for (int i =0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
// print title's value
//printf("%2i", board[i][j]);
if (j == d-1){
if (i == d-1){
printf(" _");
}
else {
printf(" %2i", board[i][j]);
}
}
else {
printf(" %2i", board[i][j]);
}
}
// print new line
printf("\n");
printf("\n");
}
}
/**
* If tile borders empty space, moves tile and returns true, else
* returns false.
*/
bool move(int tile)
{
// TODO
// find location of specified tile using linear search
//find tile location in nice iterative manner.
//nested for loop
int swappy;
for (int i =0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
if (board[i][j] == tile) {
//edit the board array only if move is legal
// if tile is above blank{
if (i2 != 0) {
if (tile == board[i2 - 1][j2]) {
//swap them
swappy = tile;
tile = board[i2 - 1][j2];
board[i2 -1][j2] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
if (i2 != d -1){
if (tile == board[i2 + 1][j2]) {
//swap them
swappy = tile;
tile = board[i2 + 1][j2];
board[i2 + 1][j2] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
//else if tile is on the left {
if (j2 != 0){
if (tile == board[i2][j2 - 1]) {
//swap them
swappy = tile;
tile = board[i2][j2 - 1];
board[i2 ][j2 -1] = tile;
//keep track of where blank is using two
//variables
i2 = i;
j2 = j;
return true;
}
}
if (j2 != d -1){
if (tile == board[i2][j2 + 1]) {
//swap them
swappy = tile;
tile = board[i2][j2+1];
board[i2][j2+1] = tile;
//keep track of where blank is using two variables
i2 = i;
j2 = j;
return true;
}
}
// BUG: THE TIL LOCATIONS DONT MOVE
else {
// illegal move!
return false;
}
}
}
}
return false;
}
/**
* Returns true if game is won (i.e., board is in winning configuration),
* else false.
*/
bool won(void)
{
for (int i =0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
int smaller = board[i][j];
int counter =0;
if (board[i][j]== board[0][0]){
smaller = board[i][j];
counter++;
}
else if (counter == d*d){
return true;
}
else if (smaller < board[i][j]){
if (smaller < board[i][j])
counter++;
smaller = board[i][j];
}
else {
return false;
}
}
}
// Game is won if tiles are in increasing order left to right and top to bottom
// if game won..
// return true;
// else...
// return false;
return true;
}
