#include "hover_tracker.h"
#include "game/core/world.h"
#include "render/gl/camera.h"

HoverTracker::HoverTracker(Game::Systems::PickingService *pickingService)
    : m_pickingService(pickingService), m_hoveredEntityId(0) {}

Engine::Core::EntityID
HoverTracker::updateHover(float sx, float sy, Engine::Core::World &world,
                          const Render::GL::Camera &camera, int viewportWidth,
                          int viewportHeight) {
  if (!m_pickingService)
    return 0;

  if (sx < 0 || sy < 0 || sx >= viewportWidth || sy >= viewportHeight) {
    m_hoveredEntityId = 0;
    return 0;
  }

  m_hoveredEntityId = m_pickingService->updateHover(
      sx, sy, world, camera, viewportWidth, viewportHeight);

  return m_hoveredEntityId;
}