SimpleEngine/include/simpleengine/entity.h

61 lines
1.9 KiB
C++

//
// Created by SeanOMik on 7/2/2020.
// Github: https://github.com/SeanOMik
// Email: seanomik@gmail.com
//
#ifndef SIMPLEENGINE_ENTITY_H
#define SIMPLEENGINE_ENTITY_H
#include <SFML/Graphics.hpp>
#include <vector>
#include <memory>
namespace simpleengine {
class Component;
class Game;
class Event;
class Entity : std::enable_shared_from_this<Entity> {
friend class Game;
friend class Event;
public:
Entity() = default;
virtual ~Entity() = default;
Entity(const Entity& entity) = delete;
virtual void Move(const float& delta_time, const float& dir_x, const float& dir_y) {};
virtual void Move(const float& delta_time, const sf::Vector2f& offset) {};
virtual void Move(const sf::Vector2f& offset) {};
virtual void Update(const float& delta_time) = 0;
virtual void Render(sf::RenderTarget* target) = 0;
// Called when the entity is about to be destroyed.
// Make sure to call this in your extending Entity.
virtual void Destroying();
void DestroyLater(); // In most cases, this will be ran next EntityEvent::Update()
const bool& IsGettingDestroyed() const;
// If your event does not extend from EntityEvent, you will need to execute this yourself inside Event::Update.
void UpdateComponents(const float& delta_time);
void AddComponent(std::unique_ptr<Component> component);
std::shared_ptr<Entity> GetShared() {
return shared_from_this();
}
private:
// This is ran from class `Game` and `Event`. It runs the `UpdateComponents` method and then the `Update` method.
void UpdateEntity(const float& delta_time) {
UpdateComponents(delta_time);
}
std::vector<std::unique_ptr<Component>> components;
bool destroying = false;
};
}
#endif //GAMEENGINE_ENTITY_H