snake

#include <iostream>
#include <conio.h>
using namespace std;


bool gameOver;
const int widht = 20, height = 20;
int x, y, fruitX, fruitY, score;
int tailX[100];
int tailY[100];
int nTail;
enum eDirection { stop = 0, LEFT, RIGHT, DOWN, UP };
eDirection dir;

void setup() {
    gameOver = false;
    dir = stop;
    x = widht / 2 - 1;
    y = height / 2 - 1;
    fruitX = rand() % widht;
    fruitY = rand() % height;
    score = 0;
}


void draw() {
    system("cls");

    for (int i = 0; i < widht+1; i++) {
        cout << "#";
    }
    cout << '\n';

    for (int i = 0; i < widht; i++) {
        for (int j = 0; j < height; j++) {
            if (j == 0 || j == height - 1) {
                cout << "#";
            }
            if (i == y && j == x) {
                cout << "S";
            }
            else if (i == fruitY && j == fruitX) {
                cout << "0";
            }
            else {
                bool print = false;
                for (int k = 0; k < nTail; k++) {
                    if (tailX[k] == j && tailY[k] == i) {
                        print = true;
                        cout << "s";
                    }
                }
                if (print == false) {
                    cout << " ";
                }

            }
        }
        cout << '\n';
    }

    for (int i = 0; i < widht+1; i++) {
        cout << "#";
    }
    cout << '\n';
    cout << "Ваш счет равен = " << score;
}

void input() {
    if (_kbhit() == true) {
        switch (_getch())
        {
        case 'a':
            dir = LEFT;
            break;
        case 'w':
            dir = UP;
            break;
        case 'd':
            dir = RIGHT;
            break;
        case 's':
            dir = DOWN;
            break;
        case 'g':
            gameOver = true;
            break;
        }
    }
}

void logic() {
    int prevX = tailX[0];
    int prevY = tailY[0];
    int prev2X, prev2Y;
    tailX[0] = x;
    tailY[0] = y;
    for (int i = 1; i < nTail; i++) {
        prev2X = tailX[i];
        prev2Y = tailY[i];
        tailX[i] = prevX;
        tailY[i] = prevY;
        prevX = prev2X;
        prevY = prev2Y;
    }
    switch (dir)
    {
    case LEFT:
        x--;
        break;
    case RIGHT:
        x++;
        break;
    case DOWN:
        y++;
        break;
    case UP:
        y--;
        break;
    }
    /*if (x > widht-2  || x < 0 || y > height-2 || y < 0) {
        gameOver = true;
    }*/
    if (x >= widht - 1) {
        x = 0;
    }
    else if (x < 0) {
        x = widht - 2;
    }
    if (y >= height) {
        y = 0;
    }
    else if (y < 0) {
        y = height-1;
    }

    for (int i = 0; i < nTail; i++) {
        if (tailX[i] == x && tailY[i] == y) {
            gameOver = true;
        }
    }

    if (x == fruitX && y == fruitY) {
        score+=10;
        fruitX = rand() % widht - 1;
        fruitY = rand() % height;
        nTail++;
    }
}


int main() {
    setlocale(LC_ALL, "Rus");
    setup();
    while (gameOver == false) {
        draw();
        input();
        logic();
    }
    return 0;
}