CollisionCallback.cpp

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#include "Engine/Collision/CollisionCallback.hpp"

#include "Engine/engine.hpp"

namespace Engine {

    void EntityContact::BeginContact(b2Contact* contact)
    {
        GetEntities(contact);

        entityA_.lock()->OnBeginContact(entityB_);
        entityB_.lock()->OnBeginContact(entityA_);
    }

    void EntityContact::EndContact(b2Contact* contact)
    {
        GetEntities(contact);

        entityA_.lock()->OnEndContact(entityB_);
        entityB_.lock()->OnEndContact(entityA_);
    }

    void EntityContact::GetEntities(b2Contact* contact)
    {
        eastl::weak_ptr<EntitySystem> entitySystem = Engine::GetEngine().lock()->GetEntitySystem();

        const uint64_t entityIdA = uint64_t(contact->GetFixtureA()->GetUserData());
        const uint64_t entityIdB = uint64_t(contact->GetFixtureB()->GetUserData());

        entityA_ = entitySystem.lock()->GetEntity(entityIdA);
        entityB_ = entitySystem.lock()->GetEntity(entityIdB);
    }
} // namespace Engine