44: Basic struct

Talk about how we're going to make a mini combat system for multiple combatants.

The Code

View Source file ex44.cpp Only

#include <fmt/core.h>
#include <string>
#include <random>

std::random_device RNG;
std::mt19937 GENERATOR(RNG());

struct Combatant {
  std::string name;
  int damage{0};
  int hp{0};
  float hearing_distance{0.0f};
};

int random_number(int from, int to) {
  std::uniform_int_distribution rand(from, to);
  return rand(GENERATOR);
}

void fight(Combatant& attacker, Combatant& defender) {
  int damage = random_number(0, attacker.damage);

  if(damage > 0) {
    defender.hp -= damage;
    fmt::println("{} hit {} for {}. {} now has {} hp",
        attacker.name, defender.name, damage,
        defender.name, defender.hp);
  } else {
    fmt::println("{} missed {}!",
        attacker.name, defender.name);
  }

  if(defender.hp <= 0) {
    fmt::println("{} died. {} wins! {} has {} HP",
        defender.name, attacker.name,
        attacker.name, attacker.hp);
  }
}

int main(int argc, char* argv[]) {
  Combatant giant_rat{"Giant Rat", 20, 30, 2.4f};
  Combatant player{"Player", 20, 50, 1.4f};
  bool player_turn = false;

  while(giant_rat.hp > 0 && player.hp > 0) {
    if(player_turn) {
      fight(giant_rat, player);
    } else {
      fight(player, giant_rat);
    }

    player_turn = !player_turn;
  }
}

The Breakdown

line of code

Description.

The Discussion

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Further Study

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