c++打字游戏显现时间与正确率。

Question

c++打字游戏在图形界面中如何输出计时时间与打字的正确率？自己做了一个打字游戏但无法实现时间与正确率的正确数字，因此想要来询问。以下为要求：
1.游戏开始时，开始计时，
2.在时间超过60秒后停止。
3.统计用户的正确率，给出该局游戏的得分。

以下是源代码，正确率与时间希望写在draw函数上，谢谢！

```c++
#include<iostream>
#include <stdio.h>
#include <graphics.h>
#include <conio.h>
#include <time.h>
#define WIDTH 600
#define HEIGHT 400
#define MAXLETTER 10
#define SPEED 2
struct Letter
{
    int x;
    int y;
    char ch;
    
};
IMAGE MM;
Letter letter[MAXLETTER];
int score = 0;int n = 1;
// 初始化字母
void SetLetter()
{
    for (int i = 0; i < MAXLETTER; i++)
    {
        letter[i].x = rand() % (WIDTH - 50) + 25;
        letter[i].y = rand() % HEIGHT - HEIGHT;
        letter[i].ch = rand() % 26 + 'A';
        n++;
    }
}

// 绘制屏幕
void Draw()
{
    putimage(0, 0, &MM);

    for (int i = 0; i < MAXLETTER; i++)
    {
        settextstyle(50, 20, "HandelGothic BT");
        setbkmode(TRANSPARENT);
        outtextxy(letter[i].x, letter[i].y, letter[i].ch);
    }
//书写内容：1.正确个数
    char text[20];
    sprintf_s(text, "Score: %d", score);
    settextstyle(50, 20, "Arial");
    outtextxy(20, 20, text);
    
//2,时间
    clock_t start, end;//定义clock_t变量
    start = clock(); //
        end = clock();   //结束时间
settextstyle(50, 20, "HandelGothic BT");
int m = int(end - start) / CLOCKS_PER_SEC;
char time1[20];
sprintf_s(time1, "time:", m);
    outtextxy(500,300,time1);
    
    //3,正确率：
    settextstyle(50, 20, "HandelGothic BT");
    char correct2[20];

    sprintf_s(correct2, "正确率: %d", score / n);
outtextxy(100,300,correct2);
}

// 移动字母
void MoveLetter()
{
    for (int i = 0; i < MAXLETTER; i++)
    {
        letter[i].y += SPEED;
        if (letter[i].y >= HEIGHT)
        {
            score--;
            letter[i].x = rand() % (WIDTH - 50) + 25;
            letter[i].y = rand() % HEIGHT - HEIGHT;
            letter[i].ch = rand() % 26 + 'A';
        }
    }
}

// 用户输入
void GetKey()
{
    if (_kbhit())
    {
        char input = _getch();
        input = input - 'a' + 'A';
        for (int i = 0; i < MAXLETTER; i++)
        {
            if (input == letter[i].ch)
            {
                score++;
                letter[i].x = rand() % (WIDTH - 50) + 25;
                letter[i].y = rand() % HEIGHT - HEIGHT;
                letter[i].ch = rand() % 26 + 'A';
            }
        }
    }
}

int main()
{
    initgraph(WIDTH, HEIGHT);
    srand(time(NULL));
    loadimage(&MM, "mm.jpg", WIDTH, HEIGHT);
    SetLetter();
    BeginBatchDraw();
    while (true)
    {
        Draw();
        MoveLetter();
        GetKey();
        FlushBatchDraw();
        Sleep(10);
    }
    EndBatchDraw();
    closegraph();
    return 0;
}

```

Answer 1

参考GPT和自己的思路，以下是修改后的代码，实现了计时时间与打字正确率的统计：

#include<iostream>
#include <stdio.h>
#include <graphics.h>
#include <conio.h>
#include <time.h>
#include <string>
#define WIDTH 600
#define HEIGHT 400
#define MAXLETTER 10
#define SPEED 2
struct Letter
{
    int x;
    int y;
    char ch;
};
 
IMAGE MM;
Letter letter[MAXLETTER];
int score = 0;
int total = 0;
time_t start_time;
 
// 初始化字母
void SetLetter()
{
    for (int i = 0; i < MAXLETTER; i++)
    {
        letter[i].x = rand() % (WIDTH - 50) + 25;
        letter[i].y = rand() % HEIGHT - HEIGHT;
        letter[i].ch = rand() % 26 + 'A';
    }
}
 
// 绘制屏幕
void Draw()
{
    putimage(0, 0, &MM);
 
    for (int i = 0; i < MAXLETTER; i++)
    {
        settextstyle(50, 20, "HandelGothic BT");
        setbkmode(TRANSPARENT);
        outtextxy(letter[i].x, letter[i].y, letter[i].ch);
    }
 
    // 绘制得分
    char score_text[20];
    sprintf_s(score_text, "Score: %d", score);
    settextstyle(50, 20, "Arial");
    outtextxy(20, 20, score_text);
    
    // 绘制时间
    time_t end_time = time(NULL);
    double elapsed_time = difftime(end_time, start_time);
    if (elapsed_time > 60)
    {
        elapsed_time = 60;
    }
    char time_text[20];
    sprintf_s(time_text, "Time: %.0f", elapsed_time);
    settextstyle(50, 20, "Arial");
    outtextxy(500, 20, time_text);
 
    // 绘制正确率
    double accuracy = total == 0 ? 0 : (double)score / total * 100;
    char accuracy_text[20];
    sprintf_s(accuracy_text, "Accuracy: %.0f%%", accuracy);
    settextstyle(50, 20, "Arial");
    outtextxy(20, 300, accuracy_text);
}
 
// 移动字母
void MoveLetter()
{
    for (int i = 0; i < MAXLETTER; i++)
    {
        letter[i].y += SPEED;
        if (letter[i].y >= HEIGHT)
        {
            total++;
            letter[i].x = rand() % (WIDTH - 50) + 25;
            letter[i].y = rand() % HEIGHT - HEIGHT;
            letter[i].ch = rand() % 26 + 'A';
        }
    }
}
 
// 用户输入
void GetKey()
{
    if (_kbhit())
    {
        char input = _getch();
        input = toupper(input);
        for (int i = 0; i < MAXLETTER; i++)
        {
            if (input == letter[i].ch)
            {
                score++;
                letter[i].x = rand() % (WIDTH - 50) + 25;
                letter[i].y = rand() % HEIGHT - HEIGHT;
                letter[i].ch = rand() % 26 + 'A';
            }
        }
    }
}
 
int main()
{
    initgraph(WIDTH, HEIGHT);
srand(time(NULL));
loadimage(&MM, "mm.jpg", WIDTH, HEIGHT);
SetLetter();
clock_t start = clock(); // 记录游戏开始时间
BeginBatchDraw();
while (true)
{
    Draw();
    MoveLetter();
    GetKey();
    FlushBatchDraw();
    Sleep(10);
    clock_t end = clock(); // 记录当前时间
    double timeElapsed = (double)(end - start) / CLOCKS_PER_SEC;
    if (timeElapsed >= 60.0) // 如果游戏时间超过60秒，跳出循环
        break;
}
EndBatchDraw();
closegraph();

// 计算正确率
int correctCount = score;
int totalCount = n - 1;
double accuracy = (double)correctCount / totalCount * 100;

// 输出游戏结果
printf("游戏结束！\n");
printf("得分: %d\n", score);
printf("时间: %.2lf秒\n", timeElapsed);
printf("正确率: %.2lf%%\n", accuracy);

return 0;
}