Marko's Text Adventure

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

#define PRINT_OPTIONS puts("What would you like to do?\n"\
        "(F)ight\n(S)leep\n(Q)uit");
#define PRINT_COMBAT_OPTIONS puts("What would you like to do?\n"\
        "(A)ttack\n(R)un");
#define PRINT_TITLE puts("**************************\n" \
        "* Marko's Text Adventure *\n**************************")

#define YOUR_SWING 30
#define THEIR_SWING 15
#define RUN_CHANCE .20
#define DRAND ((double) rand())/((double) RAND_MAX)
#define CHECK_VALID_CHOICE if(choice[1] != '\n' && choice[1] != '\0'){\
        while( (c = fgetc( stdin )) != EOF && c != '\n' );\
        continue;\
}

int main(){

    double  hp = 100.0,
            enemy_hp,
            damage;
    int monsters_killed = 0;
    char c;
    char    name[256],
    choice[3];

    srand(time(NULL));
    PRINT_TITLE;
    puts("What is your name?");

    fgets(name,254,stdin);
    int i = 0;
    for(;i <255;i++){
        if(name[i] == '\n' || name[i] == '\0')
            break;
    }
    name[i] = '\0';
    printf("Hello, %s.\n",name);

    while(1){
        /* Labels and goto's necessary with lack of multiple level breaks */
        main_loop:
        PRINT_OPTIONS;
        fgets(choice,3,stdin);
        switch(choice[0]){
        /* User chose fight */
        case 'F':
        case 'f':
            CHECK_VALID_CHOICE;
            /* Begin fight loop */
            puts("A monster appears!");
            enemy_hp = DRAND*100.0;
            while(1){
                printf("Your hp: %.2f\n",hp);
                printf("Monster hp: %.2f\n",enemy_hp);
                PRINT_COMBAT_OPTIONS;
                fgets(choice,3,stdin);
                switch(choice[0]){
                case 'A':
                case 'a':
                    CHECK_VALID_CHOICE;
                    puts("You swing wildly at the monster.");
                    damage = DRAND*YOUR_SWING;
                    printf("You deal %.2f damage to the monster.\n",damage);
                    enemy_hp -= damage;
                    if(enemy_hp < 0){
                        puts("You killed the monster!");
                        monsters_killed++;
                        goto main_loop;
                    }
                    break;
                case 'R':
                case 'r':
                    CHECK_VALID_CHOICE;
                    puts("You attempt to run away!");
                    if(DRAND < RUN_CHANCE){
                        puts("You ran away successfully! Pussy.");
                        goto main_loop;
                    }
                    puts("You failed to run away!");
                    break;
                default:
                    continue;
                }
                damage = DRAND * THEIR_SWING;
                printf("The monster distractions you with pictures from /r/aww"\
                        " and strikes, dealing %.2f damage\n",damage);
                hp -= damage;
                if(hp <0){
                    goto died;
                }

            }
            break;
        case 'S':
        case 's':
            CHECK_VALID_CHOICE;
            puts("You decide to sleep for a couple hours. Not very exciting.");
            break;
        case 'Q':
        case 'q':
            CHECK_VALID_CHOICE;
            puts("You grow tired of killing monsters and decide to take your"\
                    " own life.");
            goto died;
            break;
        default:
            break;
        }
    }
    died:
    printf("You have died. However, you were able to take "\
            "%d monsters with you before you went.\n", monsters_killed);
    return 0;

}