Weird Game using threads

#include <iostream>
#include <conio.h>
#include <stdio.h>
#include <time.h>
#include <thread>
#include <Windows.h>

using namespace std;

char matrix[10][10];
int moves;

void initialize() //Assign values to the play board (matrix[][])
{
    for(int d = 0; d < 10; d++)
    {
        for(int q = 0; q < 10; q++)
        {
            matrix[d][q] = '*';
        }
    }
    matrix[0][0] = 'X';
}


void draw() //Draw the play board
{
    for(int x = 0; x < 10; x++)
    {
        for(int z = 0; z < 10; z++)
        {
            cout << matrix[x][z] << " ";
        }
        cout << endl;
    }
}

void spawnEnemy() //Spawn the enemy O
{
    int spawnEnemy_correct = 0;

    while(spawnEnemy_correct < 3)
    {
        srand(time(0));
        int random_num_one = (rand() % 10);
        int random_num_two = (rand() % 10);

        if(matrix[random_num_one][random_num_two] != 'X')
        {
            matrix[random_num_one][random_num_two] = 'O';
            spawnEnemy_correct++;
        }
        else if(random_num_one == 9 && random_num_two == 9)
            ;
        else
            ;
    }
}

int stop_program = 0; //Stops the game and prints out the results
int dead = 0; //Decides wether the player died or not.

void input() //Let the user input
{
    //77 = right arrow
    //72 = up arrow
    //80 down arrow
    //75 = left arrow
    char variable;
    int c = 0;
    int m = 0;
    int breaking = 0;
    int break_out = 0;

    //Calculate what column and row X is at
    for(c = 0; c < 10; c++)
    {
        for(m = 0; m < 10; m++)
        {
            if(matrix[c][m] == 'X')
            {
                breaking = 1;
                break;
            }
        }
        if(breaking == 1)
            break;
    }

    //Scan input and execute movement if it is possible
    while(break_out == 0)
    {
        variable = getch();

        if(variable == 77)
        {
            if((m + 1) > 9)
            {
                ;
            }
            else if(matrix[c][m + 1] == 'O')
            {
                break_out = 1;
                stop_program = 1;
                dead = 1;
            }
            else
            {
                matrix[c][m] = '*';
                matrix[c][m + 1] = 'X';
                break_out = 1;
            }
        }
        else if(variable == 72)
        {
            if((c - 1) < 0)
            {
                ;
            }
            else if(matrix[c - 1][m] == 'O')
            {
                break_out = 1;
                stop_program = 1;
                dead = 1;
            }
            else
            {
                matrix[c][m] = '*';
                matrix[c - 1][m] = 'X';
                break_out = 1;
            }
        }
        else if(variable == 75)
        {
            if(m - 1 < 0)
            {
                ;
            }
            else if(matrix[c][m - 1] == 'O')
            {
                break_out = 1;
                stop_program = 1;
                dead = 1;
            }
            else
            {
                matrix[c][m] = '*';
                matrix[c][m - 1] = 'X';
                break_out = 1;
            }
        }
        else if(variable == 80)
        {
            if((c + 1) > 9)
            {
                ;
            }
            else if(matrix[c + 1][m] == 'O')
            {
                break_out = 1;
                stop_program = 1;
                dead = 1;
            }
            else
            {
                matrix[c][m] = '*';
                matrix[c + 1][m] = 'X';
                break_out = 1;
            }
        }

        if(matrix[9][9] == 'X')
        {
            stop_program = 1;
            break_out = 1;
        }
    }
}

int counter_variable = 0;

int counting_function()
{
    counter_variable = 0;
    while(stop_program == 0)
    {
        Sleep(1000);
        counter_variable++;
    }
}

int main()
{
    initialize();
    thread t1(counting_function);
    while(stop_program == 0)
    {
        spawnEnemy();
        draw();
        input();
        moves++;
        system("cls");
    }
    t1.join();

    if(dead == 1)
    {
        cout << "You died!" << endl;
        cout << "Number of moves: " << moves << endl;
        cout << "Number of seconds: " << counter_variable << endl;
    }
    else
    {
        cout << "You made it to the other side!" << endl;
        cout << "Number of moves: " << moves << endl;
        cout << "Number of seconds: " << counter_variable << endl;
    }
}