将print_screen改成在特定位置gotoxy绘制用覆盖并重新绘制#include stdioh#include stringh#include windowsh#include stdlibh#include timehconst int N = 2;const int M = 60;const int FRAME_RATE = 10;const int CAR_TIME = 10;con

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

const int N = 2; const int M = 60; const int FRAME_RATE = 10; const int CAR_TIME = 10; const int MAX_CAR = 10;

void clear(); void cls(); void pause(); void print_screen(); void tick(int &times, int frame_rate); void wait_off(int key); void wait_on(int key); bool get_pressed(int key); void draw(You you, Car cars[], int car_count); void game();

struct Sprite { char shapes[10]; int x, y, len;

Sprite(const int &_x = 0, const int &_y = 0, const char _shapes[] = "%")
{
    x = _x, y = _y;
    strcpy(shapes, _shapes);
    len = strlen(_shapes);
}

void move(int dx, int dy)
{
    x += dx;
    y += dy;

    if (y < 0)
    {
        y = 0;
    }
    if (y >= M)
    {
        y = M - 1;
    }
    if (x < 0)
    {
        x = 0;
    }
    if (x >= N)
    {
        x = N - 1;
    }
}

void draw(char screen[N][M])
{
    for (int i = 0; i < len; i++)
    {
        if (x < 0 || x >= N || y + i < 0 || y + i >= M)
        {
            continue;
        }
        screen[x][y + i] = shapes[i];
    }
}

virtual void update() {}

};

struct You : Sprite { You() : Sprite(0, 1, "@#>") { }

void update()
{
    if (get_pressed(VK_UP) && x > 0)
    {
        move(-1, 0);
    }
    else if (get_pressed(VK_DOWN) && x < N - 1)
    {
        move(1, 0);
    }
}

bool touch(Sprite other)
{
    if (x == other.x && y + len >= other.y && y <= other.y)
    {
        return true;
    }
    return false;
}

bool touch(Sprite other[], int count)
{
    for (int i = 0; i < count; i++)
    {
        if (touch(other[i]))
        {
            return true;
        }
    }
    return false;
}

};

struct Car : Sprite { Car() : Sprite(rand() % N, M - 1, "<{#") { }

void update()
{
    move(0, -1);
    if (y >= M / 3)
    {
        int random = rand() % 5;
        if (random == 0)
        {
            move(1, 0);
        }
        else if (random == 1)
        {
            move(-1, 0);
        }
    }
}

};

char screen[N][M];

void clear() { memset(screen, '.', sizeof(screen)); }

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

void pause() { system("pause"); }

void print_screen() { cls(); for (int i = 0; i < N; i++) { for (int j = 0; j < M; j++) { gotoxy(i, j); putchar(screen[i][j]); } } }

void tick(int &times, int frame_rate = FRAME_RATE) { Sleep(1000.0 / frame_rate); times++; }

void wait_off(int key) { while (get_pressed(key)) { } }

void wait_on(int key) { while (!get_pressed(key)) { } }

bool get_pressed(int key) { return (GetAsyncKeyState(key) & 0x8000); }

void draw(You you, Car cars[], int car_count) { clear(); you.draw(screen); for (int i = 0; i < car_count; i++) { cars[i].draw(screen); } }

void game() { srand(time(0)); You you; Car cars[MAX_CAR] = {Car()}; int car_count = 1; int frame_rate = FRAME_RATE; int times = 0; int score = 0;

while (true)
{
    if (get_pressed(VK_ESCAPE))
    {
        break;
    }
    if (you.touch(cars, car_count))
    {
        break;
    }
    if (cars[0].y == 0)
    {
        car_count--;
        score++;
        for (int i = 0; i < car_count; i++)
        {
            cars[i] = cars[i + 1];
        }
    }
    you.update();
    for (int i = 0; i < car_count; i++)
    {
        cars[i].update();
    }
    if (get_pressed(VK_RIGHT))
    {
        tick(times, frame_rate * 2);
    }
    else
    {
        tick(times, frame_rate);
    }
    if (times > (frame_rate * 10))
    {
        frame_rate += 5;
        times = 0;
    }
    if (times % (frame_rate * 3) == 0)
    {
        if (car_count + 1 < MAX_CAR)
        {
            cars[car_count++] = Car();
        }
    }
    draw(you, cars, car_count);
    print_screen();
    printf("times: %d, frame rate: %d, score: %d\n", times, frame_rate, score);
}
cls();
printf("You score is %d\n\n", score);
pause();

}

int main() { game(); return 0;