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Simple game in c++

Britisz (1)
Hi, I have a problem - when I want to move, after compilation and start-up
programe tells that it can't be done (wrong move). I have no idea
where I made a mistake. Can anybody help and tell me what I should improve?
I have just started doing such programs (which are not the best as you can see)
so I'll be gratefull for any kind of help :)
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#include<iostream>
#include<fstream>
#define x 13
#define y 5

using namespace std;
char background[ x ][ y ];
int a = 1, b = 1, i, j;
char buf;
char move;

int main() {
    fstream file;
    file.open( "map1.txt", ios::in | ios::out );
    if( file.good() == false ) cout << "The file can't be opened!";
    
    noskipws( file );
    for( i = 0; i < 13; i++ ) {
        for( j = 0; j < 5; j++ ) {
            file >> background[ i ][ j ];
        }
    }
    for( i = 0; i < 13; i++ )
    {
        for( j = 0; j < 5; j++ )
        {
            cout << background[ i ][ j ];
        }
    }
    cout << endl;
    
    while( !( a == 10 && b == 1 ) ){
        cout << "Where do you want to move?" << endl;
        cin >> move;
        switch( move ) {
        case 'w':
            if( background[ a + 1 ][ b ] == ' ' ) {
                buf = background[ a ][ b ];
                background[ a ][ b ] = background[ a + 1 ][ b ];
                background[ a + 1 ][ b ] = buf;
                a++;
            }
            else if( background[ a + 1 ][ b ] == '#' && background[ a + 2 ][ b ] == ' ' ) {
                buf = background[ a + 1 ][ b ];
                background[ a + 1 ][ b ] = background[ a + 2 ][ b ];
                background[ a + 1 ][ b ] = buf;
                buf = background[ a ][ b ];
                background[ a ][ b ] = background[ a + 1 ][ b ];
                background[ a + 1 ][ b ] = buf;
                a++;
            }
            else if( background[ a + 1 ][ b ] == 'X' ) {
                cout << "wrong move";
                cout << endl;
            }
            else if( background[ a ][ b + 1 ] == '#' && background[ a ][ b + 2 ] == 'X' ) {
                cout << "wrong move";
                cout << endl;
            };
            break;
            
        case 's':
            if( background[ a - 1 ][ b ] == ' ' ) {
                buf = background[ a ][ b ];
                background[ a ][ b ] = background[ a - 1 ][ b ];
                background[ a - 1 ][ b ] = buf;
                a--;
            }
            else if( background[ a - 1 ][ b ] == '#' && background[ a - 2 ][ b ] == ' ' ) {
                buf = background[ a - 1 ][ b ];
                background[ a - 1 ][ b ] = background[ a - 1 ][ b ];
                background[ a - 1 ][ b ] = buf;
                buf = background[ a ][ b ];
                background[ a ][ b ] = background[ a - 1 ][ b ];
                background[ a - 1 ][ b ] = buf;
                a--;
            }
            else if( background[ a - 1 ][ b ] == 'X' ) {
                cout << "wrong move";
                cout << endl;
            }
            else if( background[ a - 1 ][ b ] == '#' && background[ a - 2 ][ b ] == 'X' ) {
                cout << "wrong move";
                cout << endl;;
                break;
                
            case 'a':
                if( background[ a ][ b - 1 ] == ' ' ) {
                    buf = background[ a ][ b ];
                    background[ a ][ b ] = background[ a ][ b - 1 ];
                    background[ a ][ b - 1 ] = buf;
                    b--;
                }
                else if( background[ a ][ b - 1 ] == '#' && background[ a ][ b - 2 ] == ' ' ) {
                    buf = background[ a ][ b - 1 ];
                    background[ a ][ b - 1 ] = background[ a ][ b - 2 ];
                    background[ a ][ b - 1 ] = buf;
                    buf = background[ a ][ b ];
                    background[ a ][ b ] = background[ a ][ b - 1 ];
                    background[ a ][ b - 1 ] = buf;
                    b--;
                }
                else if( background[ a ][ b - 1 ] == 'X' ) {
                    cout << "wrong move";
                    cout << endl;
                }
                else if( background[ a ][ b - 1 ] == '#' && background[ a ][ b - 2 ] == 'X' ) {
                    cout << "wrong move";
                    cout << endl;
                };
                break;
                
            case 'd':
                if( background[ a ][ b + 1 ] == ' ' ) {
                    buf = background[ a ][ b ];
                    background[ a ][ b ] = background[ a ][ b + 1 ];
                    background[ a ][ b + 1 ] = buf;
                    b++;
                }
                else if( background[ a ][ b + 1 ] == '#' && background[ a ][ b + 2 ] == ' ' ) {
                    buf = mapa[ a ][ b + 1 ];
                    background[ a ][ b + 1 ] = background[ a ][ b + 2 ];
                    background[ a ][ b + 1 ] = buf;
                    buf = background[ a ][ b ];
                    background[ a ][ b ] = background[ a ][ b + 1 ];
                    background[ a ][ b + 1 ] = buf;
                    b++;
                }
                else if( background[ a ][ b + 1 ] == 'X' ) {
                    cout << "wrong move";
                    cout << endl;
                }
                else if( background[ a ][ b + 1 ] == '#' && background[ a ][ b + 2 ] == 'X' ) {
                    cout << "wrong move";
                    cout << endl;
                };
                break;
                
                default:
                cout << "wrong move";
                break;
            }
            system( "cls" );
            for( i = 0; i < 13; i++ ) {
                for( j = 0; j < 5; j++ ) {
                    cout << background[ i ][ j ];
                }
            }
        }
    }
    system( "pause" );
    return 0;
}
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