ColliderComponent.hpp

#pragma once
 
#include <bullet/btBulletCollisionCommon.h>
#include <Common/Memory/SmartPointers/UniquePtr.hpp>
#include <Common/Math.hpp>
#include <EngineCore/ECS/Entity.hpp>
#include <EngineCore/Reflection/ComponentReflection.hpp>
 
namespace Grindstone {
    class WorldContextSet;
}
 
namespace Grindstone::Physics {
    struct ColliderComponent {
        virtual void Initialize() = 0;
 
        Grindstone::UniquePtr<btCollisionShape> collisionShape = nullptr;
    };
 
    struct SphereColliderComponent : public ColliderComponent {
        static void Construct(Grindstone::WorldContextSet& cxtSet, entt::entity entityId);
        SphereColliderComponent Clone(Grindstone::WorldContextSet& cxt, entt::entity newEntityId) const;
        virtual void Initialize() override;
        virtual void SetRadius(float radius);
        virtual float GetRadius() const;
    private:
        float radius = 0.0f;
 
        REFLECT("SphereCollider")
    };
 
    struct PlaneColliderComponent : public ColliderComponent {
        static void Construct(Grindstone::WorldContextSet& cxtSet, entt::entity entityId);
        PlaneColliderComponent Clone(Grindstone::WorldContextSet& cxt, entt::entity newEntityId) const;
        virtual void Initialize() override;
        virtual void SetCollider(Math::Float3 planeNormal, float positionAlongNormal);
        virtual Math::Float3 GetPlaneNormal() const;
        virtual float GetPositionAlongNormal() const;
    private:
        Math::Float3 planeNormal;
        float positionAlongNormal;
 
        REFLECT("PlaneCollider")
    };
 
    struct BoxColliderComponent : public ColliderComponent {
        static void Construct(Grindstone::WorldContextSet& cxtSet, entt::entity entityId);
        BoxColliderComponent Clone(Grindstone::WorldContextSet& cxt, entt::entity newEntityId) const;
        virtual void Initialize() override;
        virtual void SetSize(Math::Float3);
        virtual Math::Float3 GetSize() const;
    private:
        Math::Float3 size;
 
        REFLECT("BoxCollider")
    };
 
    struct CapsuleColliderComponent : public ColliderComponent {
        static void Construct(Grindstone::WorldContextSet& cxtSet, entt::entity entityId);
        CapsuleColliderComponent Clone(Grindstone::WorldContextSet& cxt, entt::entity newEntityId) const;
        virtual void Initialize() override;
        virtual void SetCollider(float radius, float height);
        virtual float GetRadius() const;
        virtual float GetHeight() const;
    private:
        float radius;
        float height;
 
        REFLECT("CapsuleCollider")
    };
}