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/* $Id$ */
#include "bbs.h"
#define LOGPASS BBSHOME "/etc/winguess.log"
static int
check_data(const char *str)
{
int i, j;
if (strlen(str) != 4)
return -1;
for (i = 0; i < 4; i++)
if (str[i] < '0' || str[i] > '9')
return -1;
for (i = 0; i < 4; i++)
for (j = i + 1; j < 4; j++)
if (str[i] == str[j])
return -1;
return 1;
}
static char *
get_data(char data[5], int count)
{
while (1) {
getdata(6, 0, "輸入四位數字(不重複): ", data, 5, LCECHO);
if (check_data(data) == 1)
break;
}
return data;
}
static int
guess_play(const char *data, const char *answer, int count)
{
int A_num = 0, B_num = 0;
int i, j;
for (i = 0; i < 4; i++) {
if (data[i] == answer[i])
A_num++;
for (j = 0; j < 4; j++)
if (i == j)
continue;
else if (data[i] == answer[j]) {
B_num++;
break;
}
}
if (A_num == 4)
return 1;
move(count + 8, 55);
prints("%s => " ANSI_COLOR(1;32) "%dA %dB" ANSI_RESET, data, A_num, B_num);
return 0;
}
static int
result(int correct, int number)
{
char a = 0, b = 0, i, j;
char n1[5], n2[5];
snprintf(n1, sizeof(n1), "%04d", correct);
snprintf(n2, sizeof(n2), "%04d", number);
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
if (n1[(int)i] == n2[(int)j])
b++;
for (i = 0; i < 4; i++)
if (n1[(int)i] == n2[(int)i]) {
b--;
a++;
}
return 10 * a + b;
}
static int
legal(int number)
{
char i, j;
char temp[5];
snprintf(temp, sizeof(temp), "%04d", number);
for (i = 0; i < 4; i++)
for (j = i + 1; j < 4; j++)
if (temp[(int)i] == temp[(int)j])
return 0;
return 1;
}
static void
initcomputer(char flag[])
{
int i;
for (i = 0; i < 10000; i++)
if (legal(i))
flag[i] = 1;
else
flag[i] = 0;
}
static int
computer(int correct, int total, char flag[], int n[])
{
int guess;
static int j;
int k, i;
char data[5];
if (total == 1) {
do {
guess = random() % 10000;
} while (!legal(guess));
} else
guess = n[random() % j];
k = result(correct, guess);
if (k == 40) {
move(total + 8, 25);
snprintf(data, sizeof(data), "%04d", guess);
prints("%s => 猜中了!!", data);
return 1;
} else {
move(total + 8, 25);
snprintf(data, sizeof(data), "%04d", guess);
prints("%s => " ANSI_COLOR(1;32) "%dA %dB" ANSI_RESET, data, k / 10, k % 10);
}
j = 0;
for (i = 0; i < 10000; i++)
if (flag[i]) {
if (result(i, guess) != k)
flag[i] = 0;
else
n[j++] = i;
}
return 0;
}
static void
Diff_Random(char *answer)
{
register int i = 0, j, k;
while (i < 4) {
k = random() % 10 + '0';
for (j = 0; j < i; j++)
if (k == answer[j])
break;
if (j == i) {
answer[j] = k;
i++;
}
}
answer[4] = 0;
}
int
guess_main(void)
{
char data[5];
char computerwin = 0, youwin = 0;
int count = 0, c_count = 0;
char ifcomputer[2];
char answer[5];
char yournum[5];
const int max_guess = 10;
// these variables are not very huge, no need to use malloc
// to prevent heap allocation.
char flag[10000];
int n[1500];
setutmpmode(GUESSNUM);
clear();
showtitle("猜數字", BBSName);
Diff_Random(answer);
move(2, 0);
clrtoeol();
getdata(4, 0, "您要和電腦比賽嗎? <Y/n>[y]:",
ifcomputer, sizeof(ifcomputer), LCECHO);
*ifcomputer = (*ifcomputer == 'n') ? 0 : 1;
if (ifcomputer[0]) {
do {
getdata(5, 0, "請輸入您要讓電腦猜的數字: ",
yournum, sizeof(yournum), LCECHO);
} while (!legal(atoi(yournum)));
move(8, 25);
outs("電腦猜");
initcomputer(flag);
}
move(8, 55);
outs("你猜");
while (((!computerwin || !youwin) && count < max_guess && (ifcomputer[0]))
|| (!ifcomputer[0] && count < max_guess && !youwin)) {
if (!computerwin && ifcomputer[0]) {
++c_count;
if (computer(atoi(yournum), c_count, flag, n))
computerwin = 1;
}
move(20, 55);
prints("第 %d/%d 次機會 ", count + 1, max_guess);
if (!youwin) {
++count;
if (guess_play(get_data(data, count), answer, count))
youwin = 1;
}
}
move(17, 33);
if (ifcomputer[0]) {
if (count > c_count) {
outs(" 你輸給電腦了");
} else if (count < c_count) {
outs("真厲害, 讓你猜到囉");
} else {
prints("真厲害, 和電腦打成平手了");
}
pressanykey();
return 1;
}
if (youwin) {
if (count < 5) {
outs("真厲害!");
} else if (count > 5) {
outs("唉, 太多次才猜出來了");
} else {
outs("五次猜出來, 還可以~");
move(18, 35);
clrtoeol();
}
pressanykey();
return 1;
}
move(17, 32);
prints("嘿嘿 標準答案是 %s ", answer);
move(18, 32);
outs("下次再來吧");
pressanykey();
return 1;
}
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