NavMeshWorldModule.h

#pragma once
 
#include <AiPlugin/AiPluginDLL.h>
#include <AiPlugin/Navigation/Implementation/NavMeshGeneration.h>
#include <Core/World/WorldModule.h>
 
class plAiNavMesh;
class dtNavMesh;
 
class PL_AIPLUGIN_DLL plAiNavMeshWorldModule final : public plWorldModule
{
  PL_DECLARE_WORLD_MODULE();
  PL_ADD_DYNAMIC_REFLECTION(plAiNavMeshWorldModule, plWorldModule);
 
public:
  plAiNavMeshWorldModule(plWorld* pWorld);
  ~plAiNavMeshWorldModule();
 
  virtual void Initialize() override;
  virtual void Deinitialize() override;
 
  plAiNavMesh* GetNavMesh(plStringView sName);
  const plAiNavMesh* GetNavMesh(plStringView sName) const;
 
  const dtQueryFilter& GetPathSearchFilter(plStringView sName) const;
 
  const plAiNavigationConfig& GetConfig() const { return m_Config; }
 
private:
  void Update(const UpdateContext& ctxt);
 
  plMap<plString, plAiNavMesh*> m_WorldNavMeshes;
 
  // TODO: this is a hacky solution to delay the navmesh generation until after Physics has been set up.
  plUInt32 m_uiUpdateDelay = 10;
  plTaskGroupID m_GenerateSectorTaskID;
  plSharedPtr<plNavMeshSectorGenerationTask> m_pGenerateSectorTask;
 
  plAiNavigationConfig m_Config;
 
  plMap<plString, dtQueryFilter> m_PathSearchFilters;
};
 
/* TODO:
 
Navmesh Generation
==================
 
* fix navmesh on hills
* collision group filtering
* invalidate sectors, re-generate
* Invalidate path searches after sector changes
* sector usage tracking
* unload unused sectors
 
Path Search
===========
 
* callback for touched sectors
* on-demand sector generation ???
* use max edge-length + poly flags for 'dynamic' obstacles
 
Steering
========
 
* movement with ineratia
* decoupled position and rotation
* avoid dynamic obstacles
 
*/