HierarchyComponent.h

Ir a la documentación de este archivo.

 
#pragma once
#include "Prerequisites.h"
#include "ECS/Component.h"
 
class DeviceContext;
class Entity;
 
class 
HierarchyComponent : public Component {
public:
  HierarchyComponent() : Component(ComponentType::HIERARCHY) {}
  ~HierarchyComponent() = default;
 
  void 
  init() override {}
  
  void 
  update(float) override {}
  
  void 
  render(DeviceContext& deviceContext) override {}
 
  void 
  destroy() override { 
    m_children.clear(); 
    m_parent = nullptr; 
  }
 
  // API SceneGraph
  void 
  setParent(Entity* parent) { 
    m_parent = parent; 
  }
 
  bool 
  isRoot() const {
    return m_parent == nullptr;
  }
  
  bool 
  hasChildren() const {
    return !m_children.empty();
  }
 
  void 
  addChild(Entity* child) {
    if(!child) {
      return;
    }
 
    if (std::find(m_children.begin(), m_children.end(), child) != m_children.end()) {
      return;
    }
    m_children.push_back(child);
  }
 
  void
  removeChild(Entity* child) {
    if (!child) return;
 
    m_children.erase(
      std::remove(m_children.begin(), m_children.end(), child),
      m_children.end()
    );
  }
 
public:
  Entity* m_parent = nullptr;
  std::vector<Entity*> m_children;
};