Snakegame.cpp

#include <iostream>
#include <conio.h>
#include <windows.h>

using namespace std;

bool gameOver;
const int height = 20;
const int width = 20;

int x, y, fruitx, fruity, score;
int tailx[100], taily[100], nTail;

enum eDirection { STOP = 0, UP, DOWN, LEFT, RIGHT };
eDirection dir;

void Setup() {
    gameOver = false;
    dir = STOP;
    x = width / 2;
    y = height / 2;
    fruitx = rand() % width;
    fruity = rand() % height;
    nTail = 0; // Initialize nTail to 0
}

void Draw() {
    system("CLS");

    for (int i = 0; i < width + 2; i++) {
        cout << "#";
    }
    cout << endl;

    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            if (j == 0) {
                cout << "#";
            }
            else if (i == y && j == x) {
                cout << "O";
            }
            else if (i == fruity && j == fruitx) {
                cout << "F";
            }
            else {
                bool print = false;
                for (int k = 0; k < nTail; k++) {
                    if (i == taily[k] && j == tailx[k]) {
                        cout << "o";
                        print = true;
                    }
                }
                if (!print) {
                    cout << " ";
                }
            }
        }
        cout << "#" << endl; // Close the row with a wall
    }

    for (int i = 0; i < width + 2; i++) {
        cout << "#";
    }
    cout << endl;
    cout << "Score: " << score << endl;
}

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

void Logic() {
    int prevx = tailx[0];
    int prevy = taily[0];
    tailx[0] = x;
    taily[0] = y;

    int prev2x, prev2y;
    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 UP: y--; break;
        case DOWN: y++; break;
        case LEFT: x--; break;
        case RIGHT: x++; break;
        default: break;
    }

    // Check for wall collision
    if (x < 0 || x >= width || y < 0 || y >= height) {
        gameOver = true;
    }

    // Check for tail collision
    for (int i = 0; i < nTail; i++) {
        if (x == tailx[i] && y == taily[i]) {
            gameOver = true;
        }
    }

    // Check for fruit collision
    if (x == fruitx && y == fruity) {
        score += 10;
        fruitx = rand() % width;
        fruity = rand() % height;
        nTail++;
    }
}

int main() {
    Setup();
    while (!gameOver) {
        Draw();
        Input();
        Logic();
        Sleep(40);
    }
    return 0;
}