CollisionQuery.h

Go to the documentation of this file.

 
#pragma once
 
#include "ncengine/ecs/Entity.h"
 
#include <functional>
#include <memory>
#include <vector>
 
namespace nc
{
class CookedShape;
struct Shape;
 
struct Ray
{
    Vector3 origin = Vector3::Zero();     
    Vector3 direction = Vector3::Front(); 
};
 
struct CollisionQueryFilter
{
    using EntityFilter_t = std::function<bool(Entity)>;
    static constexpr auto EntityFilterAll = [](Entity) { return true; };
 
    EntityFilter_t entityFilter = EntityFilterAll; 
    bool includeStatic = true;                     
    bool includeDynamic = true;                    
    bool includeTrigger = false;                   
};
 
struct RayCastResult
{
    Entity hit = Entity::Null();             
    Vector3 point = Vector3::Zero();         
    Vector3 surfaceNormal = Vector3::Zero(); 
};
 
struct TestShapeHit
{
    Entity hit;              
    Vector3 point;           
    Vector3 collisionNormal; 
    float depth;             
};
 
struct TestShapeResult
{
    std::vector<TestShapeHit> hits; 
};
 
class CollisionQuery
{
    public:
        explicit CollisionQuery(const CollisionQueryFilter& filter = CollisionQueryFilter{});
 
        CollisionQuery(CollisionQuery&&) noexcept;
        CollisionQuery& operator=(CollisionQuery&&) noexcept;
        ~CollisionQuery() noexcept;
 
        auto CastRay(const Ray& ray) const -> RayCastResult;
 
        auto TestShape(const Shape& shape,
                       const Vector3& position = Vector3::Zero(),
                       const Quaternion& rotation = Quaternion::Identity()) const -> TestShapeResult;
 
        auto TestShape(const CookedShape& shape,
                       const Vector3& position,
                       const Quaternion& rotation) const -> TestShapeResult;
 
        auto TestShape(const CookedShape& shape) const -> TestShapeResult;
 
        auto TestPoint(const Vector3& point) const -> std::vector<Entity>;
 
    private:
        std::unique_ptr<class CollisionQueryImpl> m_impl;
};
} // namespace nc