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I'm trying to make a snake game in which if the snake eats the first fruit and in 2 seconds eats the second fruit then it's score multiplied by 2. If the snake eats the second fruit in 1 second then the score is multiplied by 3. If the snake eats the second fruit in 3 seconds then the score is increased just by 1 and so on ... But my fruit doesn't appear more than 1 time after the snake touches it. Why is that?

void make_stage() {
for (int i = 1; i <= 17; i++) {
    gotoxy(i, 1);
    printf("#");
    gotoxy(1, i);
    printf("#");
    gotoxy(17, i);
    printf("#");
    gotoxy(i, 17);
    printf("#");
}
x = height / 2;
y = width / 2;
fruitx = rand() % 17;
fruity = rand() % 17;
if (fruity == 0)
score = 0;

gotoxy(fruitx, fruity);
printf("@");
if (x == fruitx && y == fruity) {
    fruitx = rand() % 17;
    fruity = rand() % 17;
    score += 1;
}}

And this is my whole code just for in case!

#include<stdio.h>
#include<windows.h>
#include<conio.h>
#include<time.h>
#include<stdlib.h>

int i, j, height = 17, width = 17;
int score;
int x, y, fruitx, fruity, flag;

typedef struct RECORD {
    char name[100];
    int score;
    int time;
}record; //Name, Points,Time

record nowrec;

void gotoxy(int x, int y);          //Input location
void make_stage();                  //stage
int getCommand();                   // Keyboard input
void gameover();                    //Gameover screen
void startscr();                    //Start screen
void snake_move();                  //Snake movements
void rank_call();                   //Displaying rank
void rankrecord();                  //personal records
void cursor(int i);             //커서 상태 변경
void time_show();

int main(void) {
    startscr();
    return 0;
}
void gotoxy(int x, int y) {
    COORD pos = { 30 + x * 2, 10 + y };
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);
}

void make_stage() {
for (int i = 1; i <= 17; i++) {
    gotoxy(i, 1);
    printf("#");
    gotoxy(1, i);
    printf("#");
    gotoxy(17, i);
    printf("#");
    gotoxy(i, 17);
    printf("#");
}
x = height / 2;
y = width / 2;
fruitx = rand() % 17;
fruity = rand() % 17;
if (fruity == 0)
score = 0;

gotoxy(fruitx, fruity);
printf("@");
if (x == fruitx && y == fruity) {
    fruitx = rand() % 17;
    fruity = rand() % 17;
    score += 1;
}}

void cursor(int i) {
    CONSOLE_CURSOR_INFO cursorInfo = { 0, };
    cursorInfo.dwSize = 1;
    cursorInfo.bVisible = i;
    SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursorInfo);
}

void rank_call() {
    FILE* rank;
    char reading[100];
    if (fopen_s(&rank, "rank.txt", "r") != 0) printf("no record\n");
    else {
        printf("\n");
        while ((fgets(reading, 100, rank) != NULL)) printf("%s", reading);
        fclose(rank);
        printf("\n");
    }

}

void rankrecord() {
    printf("\npress enter to proceed...\n");
    while (getchar() != '\n');
    printf("press r to record your ranking...");
    char input = _getch();
    if (input == 'r') {
        FILE* rank;
        fopen_s(&rank, "rank.txt", "a");
        while (getchar() != '\n');
        printf("enter your name: ");
        gets_s(nowrec.name, sizeof(nowrec.name));
        fprintf(rank, "%s %d %d\n", nowrec.name, nowrec.score, nowrec.time);
        fclose(rank);
    }
}

void startscr()
{
    system("mode con cols=100 lines=40");
start:
    system("cls");
    printf("   ******   **    *       *      *    *  ******           ******      *        **    **    ******   \n");
    printf("   *        * *   *      * *     *   *   *                *          * *      *  *  *  *   *        \n");
    printf("   ******   *  *  *     *****    ****    ******           *  ***    *****     *  *  *  *   ******   \n");
    printf("        *   *   * *    *     *   *   *   *                *    *   *     *   *    **    *  *        \n");
    printf("   ******   *    **   *       *  *    *  ******           ******  *       *  *    **    *  ******   \n");
    printf("\npress s to start game\n");
    printf("press r to see ranking\n");
    printf("press x to exit\n:");
    char input = _getch();
    if (input == 's') {
        system("cls");
        cursor(0);
        make_stage();
        snake_move();
    }
    else if (input == 'r') {
        rank_call();
        printf("press enter to continue...");
        while (getchar() != '\n');
        goto start;
    }
    else if (input == 'x') exit(0);
    else {
        printf("wrong input\n");
        printf("press enter to continue...");
        while (getchar() != '\n');
        goto start;
    }
}

void gameover() {
    system("cls");
    printf("\n\n\n\n\n\n\n\n\n\n");
    printf("        ******      *        **    **    ******            ****   *       *  ******   *****         \n");
    printf("        *          * *      *  *  *  *   *                *    *   *     *   *        *    *        \n");
    printf("        *  ***    *****     *  *  *  *   ******           *    *    *   *    ******   *****         \n");
    printf("        *    *   *     *   *    **    *  *                *    *     * *     *        *    *        \n");
    printf("        ******  *       *  *    **    *  ******            ****       *      ******   *     *      \n");
    cursor(1);
    rankrecord();
}

void snake_move() {
    int x = 9, y = 9;
    int x1 = 8, y1 = 9;
    int x2 = 7, y2 = 9;
    int x3 = 6, y3 = 9;
    int x4 = 5, y4 = 9;
    char dir = 'd';
    char input = 'e';
    gotoxy(x, y);
    printf("a");
    gotoxy(x1, y1);
    printf("*");
    gotoxy(x2, y2);
    printf("*");
    gotoxy(x3, y3);
    printf("*");
    gotoxy(x4, y4);
    printf("*");
    while (1) {
        input = _getch();
        if ((dir == 'w' && input != 's') || (dir == 'a' && input != 'd') || (dir == 's' && input != 'w') || (dir == 'd' && input != 'a')) {
            if (input == 'w') {
                gotoxy(x4, y4);
                printf(" ");
                x4 = x3; x3 = x2; x2 = x1; x1 = x;
                y4 = y3; y3 = y2; y2 = y1; y1 = y;
                y = y - 1;
                if (y == 1) {
                    gameover();
                    break;
                }
                if (x == x4 && y == y4) {
                    gameover();
                    break;
                }
                gotoxy(x, y);
                printf("a");
                gotoxy(x1, y1);
                printf("*");
                gotoxy(x2, y2);
                printf("*");
                gotoxy(x3, y3);
                printf("*");
                gotoxy(x4, y4);
                printf("*");
                dir = 'w';
            }
            if (input == 'a') {
                gotoxy(x4, y4);
                printf(" ");
                x4 = x3; x3 = x2; x2 = x1; x1 = x;
                y4 = y3; y3 = y2; y2 = y1; y1 = y;
                x = x - 1;
                if (x == 1) {
                    gameover();
                    break;
                }
                if (x == x4 && y == y4) {
                    gameover();
                    break;
                }
                gotoxy(x, y);
                printf("a");
                gotoxy(x1, y1);
                printf("*");
                gotoxy(x2, y2);
                printf("*");
                gotoxy(x3, y3);
                printf("*");
                gotoxy(x4, y4);
                printf("*");
                dir = 'a';
            }
            if (input == 's') {
                gotoxy(x4, y4);
                printf(" ");
                x4 = x3; x3 = x2; x2 = x1; x1 = x;
                y4 = y3; y3 = y2; y2 = y1; y1 = y;
                y = y + 1;
                if (y == 17) {
                    gameover();
                    break;
                }
                if (x == x4 && y == y4) {
                    gameover();
                    break;
                }
                gotoxy(x, y);
                printf("a");
                gotoxy(x1, y1);
                printf("*");
                gotoxy(x2, y2);
                printf("*");
                gotoxy(x3, y3);
                printf("*");
                gotoxy(x4, y4);
                printf("*");
                dir = 's';
            }
            if (input == 'd') {
                gotoxy(x4, y4);
                printf(" ");
                x4 = x3; x3 = x2; x2 = x1; x1 = x;
                y4 = y3; y3 = y2; y2 = y1; y1 = y;
                x = x + 1;
                if (x == 17) {
                    gameover();
                    break;
                }
                if (x == x4 && y == y4) {
                    gameover();
                    break;
                }
                gotoxy(x, y);
                printf("a");
                gotoxy(x1, y1);
                printf("*");
                gotoxy(x2, y2);
                printf("*");
                gotoxy(x3, y3);
                printf("*");
                gotoxy(x4, y4);
                printf("*");
                dir = 'd';
            }
        }
        if (input == 'p') {
            gameover();
            break;
        }
    }
}
void time_show() {   //아직 미완성(not completed) 
    clock_t s, n;
    s = clock();

    while (1) {
        while (1) {
            n = clock();
            printf("\r");               //커서 왼쪽 끝으로 이동(스테이지의 위치에 따라 수정할 예정)
            printf("Time-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);
            if (_kbhit()) break; //키보드 입력이 들어오면 break;
        }

        if (_getch() == 'p') {          //만약 그것이 p이면
            printf("\rTime-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);
            _getch();
        }
        else break;

        s = s + (clock() - n);

    }

    printf("\rTime-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);

    _getch(); _getch();
    printf("\n\n\n");

    return;
}
Andrew Choi
  • 33
  • 7
  • Have you tried running your code line by line in a debugger while monitoring the values of all variables, in order to determine at which point your program stops behaving as intended? If you did not try this, then you may want to read this: [What is a debugger and how can it help me diagnose problems?](https://stackoverflow.com/q/25385173/12149471) You may also want to read this: [How to debug small programs?](https://ericlippert.com/2014/03/05/how-to-debug-small-programs/). – Andreas Wenzel Dec 04 '21 at 01:26
  • Note that when using a debugger, you can also set conditional breakpoints, so that the debugger will only pause the program under certain conditions. In your situation, this could be useful for diagnosing the problem. – Andreas Wenzel Dec 04 '21 at 01:34
  • Side note: Instead of writing the value `17` in several places in the program, it would probably be more appropriate to write `#define MAP_HEIGHT 17` and `#define MAP_WIDTH 17` at the start of your program, and then use these macro constant definitions everywhere in your program. This will make your program easier to read and understand, and it will also allow you to easily change these values, without having to change the value in several places in the program. – Andreas Wenzel Dec 04 '21 at 01:43
  • What is the point of `if (fruity == 0) score = 0;`? – Andreas Wenzel Dec 04 '21 at 02:35

0 Answers0