#include <stdio.h>
#include "genlib.h"
#include "random.h"

static bool TryToMakePoint(int point);
static int RollTwoDice(void);

void main() {
    int point;

    Randomize();  // 定义在自定义的random.h文件中
    printf("This program plays a game of craps.\n");
    point = RollTwoDice();
    switch (point) {
    case 7: case 11:
        printf("That's a natural. You win.\n");
        break;
    case 2: case 3: case 12:
        printf("That's craps. You lose.\n");
        break;
    default:
        printf("Your point is %d.\n", point);
        if (TryToMakePoint(point)) {
            printf("You made your point. You win.\n");
        } else {
            printf("You rolled a seven. You lose.\n");
        }


    }
}

static bool TryToMakePoint(int point) {
    int total;

    while (TRUE) {
        total = RollTwoDice();
        if (total == point) return TRUE;
        if (total == 7) return FALSE;
    }
}

static int RollTwoDice(void) {
    int d1, d2, total;

    printf("Rolling the dice ...\n");
    d1 = RandomInteger(1, 6);  // 定义在自定义的random.h文件中
    d2 = RandomInteger(1, 6);
    total = d1 + d2;
    printf("You rolled %d and %d -- that's %d.\n", d1, d2, total);
    return total;
}