Tic Tac Toe Game (Updated)

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

char position[11], p1[20], p2[20];
int t=1, g=1, l=0, u=0;

void interface();
void start_game();
int Win_or_not();
void red ();
void green();
void blue();
void yellow();
void purple();
void reset ();

int main() {
    int player = 1, i=-1, input;
    char mark;
    position[1] = '1';
    position[2] = '2';
    position[3] = '3';
    position[4] = '4';
    position[5] = '5';
    position[6] = '6';
    position[7] = '7';
    position[8] = '8';
    position[9] = '9';

    if(u==0) start_game();
    u++;

    if(g==1) {
        printf("\nEnter the name of Player 1: ");
        scanf("%s", &p1);
        printf("\n");
        printf("Enter the name of Player 2: ");
        scanf("%s", &p2);
        printf("\n");
        g++;
    }

    while(i == -1) {
        interface();
        if(player%2!=0) player=1;
        else player=2;
        if(player==1) printf("\n\t%s, enter the choice : ",p1);
        else printf("\n\t%s, enter the choice : ",p2);
        scanf("%d",&input);
        mark='O';
        if(player==1) mark='X';
        if(input == 1 && position[1] == '1')
            position[1] = mark;
        else if(input == 2 && position[2] == '2')
            position[2] = mark;
            else if(input == 3 && position[3] == '3')
            position[3] = mark;
            else if(input == 4 && position[4] == '4')
            position[4] = mark;
            else if(input == 5 && position[5] == '5')
            position[5] = mark;
            else if(input == 6 && position[6] == '6')
            position[6] = mark;
            else if(input == 7 && position[7] == '7')
            position[7] = mark;
            else if(input == 8 && position[8] == '8')
            position[8] = mark;
            else if(input == 9 && position[9] == '9')
            position[9] = mark;

            else {
                red();
                printf("Invalid option!!!");
                reset();
                player--;
                getch();
            }
            i = Win_or_not();
            player++;
    }

    interface();
    if(i==1){
        player--;
        ///Result printing
        green();
        if(player==1) printf("\n\n\t\tResult:- %s Won The Match\n\n",p1);
        else printf("\n\n\t\tResult:- %s Won The Match\n\n",p2);
        reset();
        ///wining Line
        yellow();
        printf("\t\tWinning Line : ");
        reset();
        blue();
        if(l>=1 && l<=3) printf("Row %d\n", l);
        else if(l>=4 && l<=6) printf("Column %d\n", l-3);
        else if(l==7) printf("Main Diagonal\n");
        else if(l==8) printf("Minor Diagonal\n");
        reset();
        l=0;
    }
    else {
        ///draw
        printf("\n\n\t\tResult:- Game draw\n");
    }
    int st;
    while(1) {
        printf("\n\n\t\tWant To Save The Game Result? For Yes(1) - No(0): ");
        scanf("%d", &st);
        if(st==1) {
            ///file write
            FILE *result=fopen("Result.txt", "a");
            if(i==1) {
                if(player==1)fprintf(result, "%s %s %s\n", p1, p2, p1);
                else fprintf(result, "%s %s %s\n", p1, p2, p2);
            }
            else fprintf(result, "%s %s Draw\n", p1, p2);

            fclose(result);
            printf("\n\t\tPlease wait While Saving!");
            printf("\n\t\t\tSaving");
            for(i=0; i<=3; i++) {
                printf(". ");
                Sleep(500);
            }
            printf("\n");
            green();
            printf("\n\t\tThe Result Saved Successfully!!!");
            reset();
            break;
        }
        else if(st==0){
            yellow();
            printf("\n\t\tThe Result Not Saved!!!");
            reset();
            break;
        }
        else {
            red();
            printf("\n\t\tEnter '0' or '1'\n");
            reset();
        }
    }

    int n;
    while(1) {
        printf("\n\n\t\tWant To Play Again? For Yes(1) - No(0): ");
        scanf("%d", &n);
        if(n==1) {
            main();
            break;
        }
        else if(n==0){
            purple();
            printf("\n\n\t\t*************************\n");
            printf("\t\t***Thanks For Playing.***\n");
            printf("\t\t*************************\n");
            reset();
            break;
        }
        else {
            red();
            printf("\n\t\tEnter '0' or '1'");
            reset();
        }
    }
    return 0;
}

void start_game() {
    int start, i;
    while(1) {
        printf("\t\tTic Tac Toe Game\n\n");
        printf("\t\t   Start Game(1)\n\n\t\tSee Statistics(2)\n\n\t\t    Exit(0)\n");
        printf("\nEnter Your Choice: ");
        scanf("%d", &start);
        if(start==0) return 0;
        else if(start==1) {
            printf("\n\t\tLoading");
            for(i=0; i<=3; i++) {
                printf(". ");
                Sleep(500);
            }
            printf("\n");
            return;
        }
        else if(start==2) {
            ///file read
            FILE *result=fopen("Result.txt", "r");
        }
        else {
            red();
            printf("\n\t\tEnter '1' or '2' or '0'\n");
            reset();
        }
    }
}

void interface(){
    system("cls");
    ///whole interface coloring (status- off)
    //if(t%2!=0) red ();
    //else yellow();
    //t++;
    printf("\n\n\t\t Tic Tac Toe \n\n");
    printf("\t     %s (X) - %s (O) \n\n\n", p1, p2);
    printf("\t\t     |     |     \n");
    printf("\t\t  %c  |  %c  |  %c  \n", position[1], position[2], position[3]);
    printf("\t\t_____|_____|_____\n");
    printf("\t\t     |     |     \n");
    printf("\t\t  %c  |  %c  |  %c  \n", position[4], position[5], position[6]);
    printf("\t\t_____|_____|_____\n");
    printf("\t\t     |     |     \n");
    printf("\t\t  %c  |  %c  |  %c  \n", position[7], position[8], position[9]);
    printf("\t\t     |     |     \n");
}

int Win_or_not(){
    if(position[1] == position[2] && position[2] == position[3]) {
        l=1;
        return 1;
    }
    else if (position[4] == position[5] && position[5] == position[6]) {
        l=2;
        return 1;
    }
    else if(position[7] == position[8] && position[8] == position[9]) {
        l=3;
        return 1;
    }
    else if(position[1] == position[4] && position[4] == position[7]) {
        l=4;
        return 1;
    }
    else if(position[2] == position[5] && position[5] == position[8]) {
        l=5;
        return 1;
    }
    else if(position[3] == position[6] && position[6] == position[9]) {
        l=6;
        return 1;
    }
    else if(position[1] == position[5] && position[5] == position[9]) {
        l=7;
        return 1;
    }
    else if(position[3] == position[5] && position[5] == position[7]) {
        l=8;
        return 1;
    }
    else if(position[1] != '1' && position[2] != '2' && position[3] != '3' && position[4] !='4' && position[5] != '5' && position[6] != '6' && position[7] != '7' && position[8] != '8' && position[9] != '9')
        return 0;
    else
        return -1;
}

void red () {
  printf("\033[1;31m");
}

void green () {
  printf("\033[1;32m");
}

void blue () {
  printf("\033[1;34m");
}

void yellow () {
  printf("\033[1;33m");
}

void purple () {
  printf("\033[1;35m");
}

void reset () {
  printf("\033[0m");
}