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下面的代码是我的石头剪刀布的实现。但是，问题是用户和计算机的动作不同步。

这是我执行它时发生的事情：

首先是计算机的选择（它显示“纸”）。然后当我选择我的移动（岩石）时，它会显示它的移动（岩石）。这是第二次（纸v / s岩石）。然后在第三次我给出我的移动（剪刀）并且它给出它的移动（纸）时，结果显示为“并列”，但我应该赢了。

我无法理解代码是如何做到这一点的，因为我在没有 OpenGL 部分的情况下使用 c++ 实现了逻辑并且它运行良好。

有人可以在代码中看到问题吗？

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<GL/glut.h>

int a; //GLOBAL VARIABLE TO CHECK USER'S CHOICE IN menu()
int n=0,sa,sb; //n IS NO. OF MOVES WE WANT- WE HAVE 3 MOVES IN THIS PROGRAM. sa & sb ARE THE SCORES OF USER AND COMPUTER RESPECTIVELY 
char ch;

int comp_move();//THIS CALCULATES COMPUTER'S MOVE
void check(int,int);//CHECKS WHO HAS WON/LOST IN ONE PARTICULAR MOVE

int comp_move()
{
    int c=0;
    c=rand()%3;
    if(c==1)drawrock(newrock);
    if(c==2)drawpaper(newpaper);
    if(c==3)drawscissor(newscissor);
    return c;
}

void check(int b)
{
    if(a==1) //rock is player's selection
    {
        if(b==2)sb++;
        if(b==3)sa++;
    }
    else if(a==2) //paper is player's selection
    {
        if(b==1) sa++;
        if(b==3) sb++;
    }
    else //scissor is player's selection
    {
        if(b==1)sb++;
        if(b==2)sa++;
    }
}

void menu(int id) //THE MENU FUNCTION
{
    switch(id)
    {
    case 1: a=1;n++;
            break;
    case 2: a=2;n++;
            break;
    case 3: a=3;n++;
            break;
    }
    glutPostRedisplay();
}

void display()
{
    //glClearColor(1.0,1.0,1.0,1.0);
    glColor3f(1.0,0.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);

    if(a==1)drawrock(rock);
    if(a==2)drawpaper(paper);
    if (a==3)drawscissor(scissor);

    //for(int i=1;i<=n;i++)
    int b=comp_move();
    check(b);

    if(n==3)//3 rounds
    {
        if(sa>sb)
            sprint(150,450,a);//prints win
        else if(sa==sb)
            sprint(150,450,a);//prints loss
        else
            sprint(150,450,a);//prints tied
    }

    if(n>4) exit(0); //here i want to see the computer's third move
    glFlush();
}

void MYINIT()
{
    glClearColor(1.0,1.0,1.0,1.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluOrtho2D(0,500,0,500);
    glMatrixMode(GL_MODELVIEW);
}

int main()
{
    glutInitWindowSize(500,500);
    glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);
    glutCreateWindow("rock, paper, scissors");
    glutCreateMenu(menu);
    glutAddMenuEntry("Rock",1);
    glutAddMenuEntry("Paper",2);
    glutAddMenuEntry("Scissors",3);
    glutAttachMenu(GLUT_RIGHT_BUTTON);
    MYINIT();
    glutDisplayFunc(display);
    glutMainLoop();
}
4

1 回答 1

4

线

c=rand()%3;

将产生一个介于0and之间的值，而2不是1and 3。将其替换为：

c = 1 + (rand()%3);
于 2013-04-15T06:12:54.407 回答