138 lines
4.0 KiB
C++
138 lines
4.0 KiB
C++
// Copyright (C) 2024 Jérôme "SirLynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Physics3D module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_PHYSICS3D_PHYSWORLD3D_HPP
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#define NAZARA_PHYSICS3D_PHYSWORLD3D_HPP
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#include <NazaraUtils/Prerequisites.hpp>
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#include <Nazara/Core/Time.hpp>
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#include <Nazara/Math/Box.hpp>
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#include <Nazara/Math/Vector3.hpp>
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#include <Nazara/Physics3D/Config.hpp>
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#include <NazaraUtils/FunctionRef.hpp>
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#include <NazaraUtils/MovablePtr.hpp>
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#include <atomic>
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#include <optional>
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#include <vector>
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namespace JPH
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{
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class BodyID;
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class PhysicsSystem;
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class Shape;
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}
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namespace Nz
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{
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class Physics3DBody;
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class PhysCharacter3D;
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class PhysCharacter3DImpl;
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class Collider3D;
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class Physiscs3DStepListener;
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class RigidBody3D;
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class NAZARA_PHYSICS3D_API PhysWorld3D
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{
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friend PhysCharacter3D;
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friend RigidBody3D;
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public:
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struct PointCollisionInfo;
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struct RaycastHit;
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struct ShapeCollisionInfo;
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PhysWorld3D();
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PhysWorld3D(const PhysWorld3D&) = delete;
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PhysWorld3D(PhysWorld3D&& ph) = delete;
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~PhysWorld3D();
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bool CollisionQuery(const Vector3f& point, const FunctionRef<std::optional<float>(const PointCollisionInfo& collisionInfo)>& callback);
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bool CollisionQuery(const Collider3D& collider, const Matrix4f& colliderTransform, const FunctionRef<std::optional<float>(const ShapeCollisionInfo& hitInfo)>& callback);
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bool CollisionQuery(const Collider3D& collider, const Matrix4f& colliderTransform, const Vector3f& colliderScale, const FunctionRef<std::optional<float>(const ShapeCollisionInfo& hitInfo)>& callback);
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UInt32 GetActiveBodyCount() const;
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Vector3f GetGravity() const;
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std::size_t GetMaxStepCount() const;
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JPH::PhysicsSystem* GetPhysicsSystem();
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Time GetStepSize() const;
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inline bool IsBodyActive(UInt32 bodyIndex) const;
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inline bool IsBodyRegistered(UInt32 bodyIndex) const;
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bool RaycastQuery(const Vector3f& from, const Vector3f& to, const FunctionRef<std::optional<float>(const RaycastHit& hitInfo)>& callback);
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bool RaycastQueryFirst(const Vector3f& from, const Vector3f& to, const FunctionRef<void(const RaycastHit& hitInfo)>& callback);
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void RefreshBodies();
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inline void RegisterStepListener(Physiscs3DStepListener* stepListener);
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void SetGravity(const Vector3f& gravity);
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void SetMaxStepCount(std::size_t maxStepCount);
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void SetStepSize(Time stepSize);
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bool Step(Time timestep);
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inline void UnregisterStepListener(Physiscs3DStepListener* stepListener);
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PhysWorld3D& operator=(const PhysWorld3D&) = delete;
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PhysWorld3D& operator=(PhysWorld3D&&) = delete;
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struct PointCollisionInfo
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{
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Physics3DBody* hitBody = nullptr;
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};
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struct RaycastHit
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{
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float fraction;
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Physics3DBody* hitBody = nullptr;
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Vector3f hitNormal;
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Vector3f hitPosition;
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};
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struct ShapeCollisionInfo
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{
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Physics3DBody* hitBody = nullptr;
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Vector3f collisionPosition1;
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Vector3f collisionPosition2;
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Vector3f penetrationAxis;
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float penetrationDepth;
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};
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private:
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class BodyActivationListener;
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friend BodyActivationListener;
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class StepListener;
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friend StepListener;
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struct JoltWorld;
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std::shared_ptr<PhysCharacter3DImpl> GetDefaultCharacterImpl();
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const JPH::Shape* GetNullShape() const;
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void OnPreStep(float deltatime);
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void RegisterBody(const JPH::BodyID& bodyID, bool activate, bool removeFromDeactivationList);
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void UnregisterBody(const JPH::BodyID& bodyID, bool destroy, bool removeFromRegisterList);
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std::size_t m_maxStepCount;
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std::shared_ptr<PhysCharacter3DImpl> m_defaultCharacterImpl;
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std::unique_ptr<std::atomic_uint64_t[]> m_activeBodies;
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std::unique_ptr<std::uint64_t[]> m_registeredBodies;
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std::unique_ptr<JoltWorld> m_world;
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std::vector<Physiscs3DStepListener*> m_stepListeners;
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Vector3f m_gravity;
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Time m_stepSize;
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Time m_timestepAccumulator;
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};
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}
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#include <Nazara/Physics3D/PhysWorld3D.inl>
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#endif // NAZARA_PHYSICS3D_PHYSWORLD3D_HPP
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