Refactor the entity out.

main.cpp

@@ -27,6 +27,7 @@
 #include <fmt/core.h>
 #include "fsm.hpp"
 #include "map.hpp"
+#include "entity.hpp"
 #include "dbc.hpp"
 
 using std::string;
@@ -52,64 +53,6 @@ std::array<sf::Color, 10> VALUES{
   sf::Color::Transparent, // white
 };
 
-enum class EntityState {
-  START, HUNTING, DEAD
-};
-
-enum class EntityEvent {
-  GO, HIT
-};
-
-
-class Entity : public DeadSimpleFSM<EntityState, EntityEvent> {
-public:
-  Point location;
-  int hp = 20;
-  int damage = 10;
-
-  Entity(Point loc) : location(loc) {
-  };
-
-  // disable copy
-  Entity(Entity &e) = delete;
-
-  void move(Point loc) {
-    location = loc;
-  }
-
-  void event(EntityEvent ev) {
-    switch(_state) {
-      FSM_STATE(EntityState, START, ev);
-      FSM_STATE(EntityState, HUNTING, ev);
-      FSM_STATE(EntityState, DEAD, ev);
-    }
-  }
-
-  void START(EntityEvent ev) {
-    state(EntityState::HUNTING);
-  }
-
-  void HUNTING(EntityEvent ev) {
-    switch(ev) {
-      case EntityEvent::HIT:
-        hp -= damage;
-        break;
-      default:
-        state(EntityState::HUNTING);
-    }
-
-    if(hp <= 0) {
-      state(EntityState::DEAD);
-    } else {
-      state(EntityState::HUNTING);
-    }
-}
-
-  void DEAD(EntityEvent ev) {
-    state(EntityState::DEAD);
-  }
-};
-
 sf::SoundBuffer g_hit_buf;
 sf::Sound g_hit_sound;