Sudoku Game

[TeachMeX]

how can i make the cursor skip the tiles that already has a value. and just moves from the blank space when i press the UP/DOWN/LEFT/RIGHT key. and control the input.

this is a project at school and so far i have gone to is this:

void gotoxy(int x, int y){
	HANDLE hConsole;
	COORD cursorLoc;
	std::cout.flush();
	cursorLoc.X = x;
	cursorLoc.Y = y;
	hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
	SetConsoleCursorPosition(hConsole, cursorLoc);
}
void cursor(int x, int y){ //this moves the cursor up down left and right on the whole grid
	while (true){
		while (true){
			gotoxy(x, y);
			if (GetAsyncKeyState(VK_UP) != 0)
			{
				y -= 2;
				Sleep(200);
				gotoxy(x, y);
				if (y < 1)
				{
					y = 17;
					Sleep(200);
					gotoxy(x, y);
				}
				break;
			}
			else if (GetAsyncKeyState(VK_DOWN) != 0)
			{
				y += 2;
				Sleep(200);
				gotoxy(x, y);
				if (y > 17)
				{
					y = 1;
					Sleep(200);
					gotoxy(x, y);
				}
				break;
			}
			else if (GetAsyncKeyState(VK_RIGHT) != 0){
				x += 4;
				Sleep(200);
				gotoxy(x, y);
				if (x > 34)
				{
					x = 2;
					Sleep(200);
					gotoxy(x, y);
				}
				break;
			}
			else if (GetAsyncKeyState(VK_LEFT) != 0){
				x -= 4;
				Sleep(200);
				gotoxy(x, y);
				if (x < 2)
				{
					x = 34;
					Sleep(200);
					gotoxy(x, y);
				}
				break;
			}
		}
	}
}
void pops0(int x, int y, int s0[3][3][3]){ //populates the cells with the given numbers
	gotoxy(x, y);
	for (int i = 0; i < 3; i++){
		for (int j = 0; j < 3; j++){
			for (int k = 0; k < 3; k++){
				if (s0[i][j][k] != 0){
					cout << s0[i][j][k];
					gotoxy(x += 4, y);
				}
				else{
					gotoxy(x += 4, y);
				}
			}
			x = 2;
			gotoxy(x, y += 2);
		}
	}
}
void pops1(int x, int y, int s1[3][3][3]){ //populates the cells with the given numbers
	x = 14;
	y = 1;
	gotoxy(x, y);
	for (int i = 0; i < 3; i++){
		for (int j = 0; j < 3; j++){
			for (int k = 0; k < 3; k++){
				if (s1[i][j][k] != 0){
					cout << s1[i][j][k];
					gotoxy(x += 4, y);
				}
				else{
					gotoxy(x += 4, y);
				}
			}
			x = 14;
			gotoxy(x, y += 2);
		}
	}
}
void pops2(int x, int y, int s0[3][3][3]){ //populates the cells with the given numbers
	x = 26;
	y = 1;
	gotoxy(x, y);
	for (int i = 0; i < 3; i++){
		for (int j = 0; j < 3; j++){
			for (int k = 0; k < 3; k++){
				if (s0[i][j][k] != 0){
					cout << s0[i][j][k];
					gotoxy(x += 4, y);
				}
				else{
					gotoxy(x += 4, y);
				}
			}
			x = 26;
			gotoxy(x, y += 2);
		}
	}
}

int main(){
	int s0[3][3][3] = { { { {5}, {3}, {} }, { {6}, {}, {} }, { {}, {9}, {8} } }, { { {8}, {}, {} }, { {4}, {}, {} }, { {7}, {}, {} } }, { { {}, {6}, {} }, { {}, {}, {} }, { {}, {}, {} } } }; //array for 3, 3 by 3 boxes from left to right containing the values
	int s1[3][3][3] = { { { {}, {7}, {} }, { {1}, {9}, {5} }, { {}, {}, {} } }, { { {}, {6}, {} }, { {8}, {}, {3} }, { {}, {2}, {} } }, { { {}, {}, {} }, { {4}, {1}, {9} }, { {}, {8}, {} } } }; //array for 3, 3 by 3 boxes from left to right containing the values
	int s2[3][3][3] = { { { {}, {}, {} }, { {}, {}, {} }, { {}, {6}, {} } }, { { {}, {}, {3} }, { {}, {}, {1} }, { {}, {}, {6} } }, { { {}, {}, {} }, { {}, {}, { 5 } }, { {}, { 7 }, { 9 } } } }; //array for 3, 3 by 3 boxes from left to right containing the values
	int x = 2, y = 1;
	for (int i = 0; i < 9; i++){ //prints the whole sudoku box
		if ((i % 3) == 0){
			cout << "+---+---+---+---+---+---+---+---+---+\n";
		}
		else{
			cout << "+-----------+-----------+-----------+\n";
		}
		for (int j = 0; j < 1; j++){
			cout << "+   |   |   +   |   |   +   |   |   +\n";
		}
	}
	cout << "+---+---+---+---+---+---+---+---+---+\n";
	pops0(x, y, s0);
	pops1(x, y, s1);
	pops2(x, y, s2);
	cursor(x, y);
	
	system("pause");

[Gamer2015]

I'm sorry, I don't want to read the code.
Please use the tags when writing code and format the code properly.

But in general you have something like this

int map[3 /*Y*/ ][3 /*X*/ ][3 /*y*/][3 /*x*/]; /// represents the structure of the Sudoku field
memset(&map, -1, sizeof(map)); // set all fields to -1
int _Y; // current y position in the large 3x3 field
int _X; // current x position in the large 3x3 field
int _y; // current y position in the small 3x3 field
int _x; // current x position in the small 3x3 field

// ...

/// This function for each direction
void MoveLeft()
{
    for(int i = 0; i < 10; i++) // if no tile is found that has the value -1 go 1 step
    {
        if(--_x < 0)
        {    
            _x = 2;
            if(--_X < 0)
                _X = 2;
        }
        if(map[_Y][_X][_y][_x] == -1)
            break;
    }
}

///
void print()
{
   // bla bla bla structure
   if( map[_Y][_X][_y][_x] != -1)
       /// print the number;
   // bla bla bla structure
}

[TeachMeX]

just edited the post with the comments, so currently i already have the whole 9 by 9 grid and the set of numbers in the corrent grids, and i have the cursor moving in the whole grid from the 9 x 9 boxes

[TeachMeX]

+---+---+---+---+---+---+---+---+---+
+___|___|___+___|___|___+___|___|___+
+___|___|___+___|___|___+___|___|___+
+   |   |   +   |   |   +   |   |   +
+-----------+-----------+-----------+
+___|___|___+___|___|___+___|___|___+
+___|___|___+___|___|___+___|___|___+
+   |   |   +   |   |   +   |   |   +
+-----------+-----------+-----------+
+___|___|___+___|___|___+___|___|___+
+___|___|___+___|___|___+___|___|___+
+   |   |   +   |   |   +   |   |   +
+---+---+---+---+---+---+---+---+---+

above is the output i have, already with the corresponding default numbers of the sudoku problem displayed and the cursor is already moving freely inside the 9 x 9 boxes. the default numbers displayed by using the array s0, s1, and s2 and the function pops0, pops1 and pops2.