feat(ex01): it works

ex01/.gitignore

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+ex01

ex01/ClapTrap.cpp

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+#include "ClapTrap.hpp"
+#include <iostream>
+
+ClapTrap::ClapTrap()
+    : name("[name unset]"), hit_points(10), energy_points(10),
+      attack_damage(0) {
+  std::cout << "ClapTrap::ClapTrap()" << std::endl;
+}
+
+ClapTrap::ClapTrap(std::string name)
+    : name(name), hit_points(10), energy_points(10), attack_damage(0) {
+  std::cout << "ClapTrap::ClapTrap(" << name << ")" << std::endl;
+}
+
+ClapTrap::~ClapTrap() { std::cout << "ClapTrap::~ClapTrap()" << std::endl; }
+
+ClapTrap &ClapTrap::operator=(const ClapTrap &other) {
+  std::cout << "ClapTrap::operator=()" << std::endl;
+  name = other.name;
+  hit_points = other.hit_points;
+  energy_points = other.energy_points;
+  attack_damage = other.attack_damage;
+  return *this;
+}
+
+void ClapTrap::attack(const std::string &target) {
+  if (energy_points > 0) {
+    std::cout << "ClapTrap " << name << " attacks " << target << ", causing "
+              << attack_damage << " points of damage!" << std::endl;
+    energy_points--;
+  } else {
+    std::cout << "ClapTrap " << name << " tries to attack " << target
+              << ", but has no more energy! " << std::endl;
+  }
+}
+
+void ClapTrap::takeDamage(unsigned int amount) {
+  std::cout << "ClapTrap " << name << " took " << amount << " points of damage!"
+            << std::endl;
+  if (amount > hit_points)
+    amount = hit_points;
+  hit_points -= amount;
+  if (hit_points == 0)
+    std::cout << "ClapTrap " << name << " died!" << std::endl;
+}
+
+void ClapTrap::beRepaired(unsigned int amount) {
+
+  if (energy_points > 0) {
+    std::cout << "ClapTrap " << name << " is repaired for " << amount
+              << " hit points!" << std::endl;
+    hit_points += amount;
+    energy_points--;
+  } else {
+    std::cout << "ClapTrap " << name
+              << " tries to repair itself, but has no more energy! "
+              << std::endl;
+  }
+}

ex01/ClapTrap.hpp

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+#ifndef CLAPTRAP_HPP
+#define CLAPTRAP_HPP
+
+#include <string>
+
+class ClapTrap {
+protected:
+  std::string name;
+  unsigned int hit_points;
+  unsigned int energy_points;
+  unsigned int attack_damage;
+
+public:
+  ClapTrap();
+  ClapTrap(std::string name);
+  ~ClapTrap();
+  ClapTrap &operator=(const ClapTrap &other);
+
+  void attack(const std::string &target);
+  void takeDamage(unsigned int amount);
+  void beRepaired(unsigned int amount);
+};
+
+#endif

ex01/Makefile

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+NAME = ex01
+ifeq ($(CPPFLAGS),)
+	CPPFLAGS = -Wall -Wextra -Werror -std=c++98 -g
+endif
+ifeq ($(CXX),)
+	CXX = c++
+endif
+# g++ is the default on 42 computers
+ifeq ($(CXX),g++)
+	CXX = c++
+endif
+srcs = \
+	ClapTrap.cpp \
+	ScavTrap.cpp \
+
+main_objs = main.o $(srcs:.cpp=.o)
+all_objs = $(main_objs)
+deps = $(all_objs:.o=.d)
+
+all: $(NAME)
+
+-include $(deps)
+
+$(NAME): $(main_objs)
+	$(CXX) $(CPPFLAGS) -o $@ $^
+
+%.o: %.cpp
+	$(CXX) -c $(CPPFLAGS) -o $*.o $*.cpp
+	$(CXX) -MM $(CPPFLAGS) -MT $*.o $*.cpp > $*.d
+
+clean:
+	find . -name '*.o' -print -delete
+	find . -name '*.d' -print -delete
+
+fclean: clean
+	rm -f $(NAME)
+
+re:
+	+make fclean
+	+make all

ex01/ScavTrap.cpp

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+#include "ScavTrap.hpp"
+#include <iostream>
+
+ScavTrap::ScavTrap() {
+  std::cout << "ScavTrap::ScavTrap()" << std::endl;
+  hit_points = 100;
+  energy_points = 50;
+  attack_damage = 20;
+}
+
+ScavTrap::ScavTrap(std::string name) {
+  std::cout << "ScavTrap::ScavTrap(" << name << ")" << std::endl;
+  hit_points = 100;
+  energy_points = 50;
+  attack_damage = 20;
+  this->name = name;
+}
+
+ScavTrap::~ScavTrap() { std::cout << "ScavTrap::~ScavTrap()" << std::endl; }
+
+ScavTrap &ScavTrap::operator=(const ScavTrap &other) {
+  this->hit_points = other.hit_points;
+  this->energy_points = other.energy_points;
+  this->attack_damage = other.attack_damage;
+  this->name = other.name;
+  return *this;
+}
+
+void ScavTrap::guardGate() {
+  std::cout << "ScavTrap " << name << " is now in gate-guarding mode."
+            << std::endl;
+}

ex01/ScavTrap.hpp

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+#ifndef SCAVTRAP_HPP
+#define SCAVTRAP_HPP
+
+#include "ClapTrap.hpp"
+
+class ScavTrap : public ClapTrap {
+public:
+  ScavTrap();
+  ScavTrap(std::string name);
+  ~ScavTrap();
+  ScavTrap &operator=(const ScavTrap &other);
+
+  void guardGate();
+};
+
+#endif

ex01/main.cpp

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+#include "ScavTrap.hpp"
+
+int main(void) {
+  {
+    ScavTrap scavtrap = ScavTrap("John Doe");
+    scavtrap.attack("training dummy");
+    scavtrap.takeDamage(3);
+    scavtrap.attack("training dummy");
+    scavtrap.takeDamage(3);
+    scavtrap.takeDamage(3);
+    scavtrap.beRepaired(5);
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.attack("training dummy");
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.beRepaired(5);
+    scavtrap.guardGate();
+  }
+  return 0;
+}