Code - Ninja Fight

// On a rooftop somewhere in New York
// Ninjas are fighting!
// This is a small game-like simulation
// involving a team of ninjas in combat
// with their nemesis

// It is intended to show use of structs
// as well as pointers

// Marc Chee (marc.chee@unsw.edu.au)

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

#define MAX_LENGTH 50
#define TEAM_SIZE 4

struct ninja {
    char name[MAX_LENGTH];
    char phrase[MAX_LENGTH];
    int power;
    int health;
};

void attack(struct ninja *attacker, struct ninja *target);
int stillAlive(struct ninja *solo, struct ninja team[TEAM_SIZE]);

int main(int argc, char *argv[]) {
    if (argc > 1) {
        // if we received a command line argument, 
        // use that as our random seed
        srand(strtol(argv[1], NULL, 10));
    }

    // Setup the array of ninjas
    struct ninja turtles[TEAM_SIZE];
    strcpy(turtles[0].name, "Leonardo");
    strcpy(turtles[0].phrase, "Leonardo leads");
    turtles[0].power = 8;
    turtles[0].health = 8;
    strcpy(turtles[1].name, "Donatello");
    strcpy(turtles[1].phrase, "Donatello does machines");
    turtles[1].power = 6;
    turtles[1].health = 7;
    strcpy(turtles[2].name, "Raphael");
    strcpy(turtles[2].phrase, "Raphael is cool but crude");
    turtles[2].power = 6;
    turtles[2].health = 9;
    strcpy(turtles[3].name, "Michelangelo");
    strcpy(turtles[3].phrase, "Michelangelo is a party dude");
    turtles[3].power = 8;
    turtles[3].health = 6;
    
    struct ninja shredder;
    strcpy(shredder.name, "The Shredder");
    strcpy(shredder.phrase, "Tonight I dine on turtle soup");
    shredder.power = 20;
    shredder.health = 20;
    
    // main game loop
    int turtleCount = 0;
    struct ninja *turtle = &turtles[turtleCount];
    printf("%s\n", turtle->phrase);
    struct ninja *shred = &shredder;
    while (stillAlive(shred, turtles)) {
        if (turtle->health <= 0) {
            // this turtle is knocked out, move on
            turtleCount++;
            turtle = &turtles[turtleCount];
            printf("%s\n", turtle->phrase);
        } else {
            attack(shred, turtle);
            attack(turtle, shred);
        }
    }
}

// The attacker will reduce the health of the target
// based on their power
void attack(struct ninja *attacker, struct ninja *target) {
    int damage = rand() % attacker->power;
    printf("%s attacks %s for %d damage.\n", 
        attacker->name, target->name, damage
    );
    target->health -= damage;
    if (target->health <= 0) {
        // target has run out of health
        printf("%s is knocked out.\n", target->name);
    }
}

// returns 1 if both teams still have someone fighting, otherwise 0
int stillAlive(struct ninja *solo, struct ninja team[TEAM_SIZE]) {
    int sAlive = 1;
    int tAlive = 0;
    if (solo->health <= 0) {
        sAlive = 0;
    }
    int i = 0;
    while (i < TEAM_SIZE) {
        if (team[i].health > 0) {
            tAlive = 1;
        }
        i++;
    }
    return sAlive * tAlive;
}