Method updateCamera

source/client/StarClientApplication.cpp:1236–1313

}

void ClientApplication::updateCamera(float dt) {
  if (!m_universeClient->worldClient())
    return;

  WorldCamera& camera = m_worldPainter->camera();
  camera.update(dt);

  if (m_mainInterface->fixedCamera())
    return;

  auto assets = m_root->assets();

  const float triggerRadius = 100.0f;
  const float deadzone = 0.1f;
  const float panFactor = 1.5f;
  float cameraSpeedFactor = 30.0f / m_root->configuration()->get("cameraSpeedFactor").toFloat();
  cameraSpeedFactor /= (dt * 60.f);

  auto playerCameraPosition = m_player->cameraPosition();

  if (isActionTaken(InterfaceAction::CameraShift)) {
    m_snapBackCameraOffset = false;
    m_cameraOffsetDownTime += dt;
    Vec2F aim = m_universeClient->worldClient()->geometry().diff(m_mainInterface->cursorWorldPosition(), playerCameraPosition);

    float magnitude = aim.magnitude() / (triggerRadius / camera.pixelRatio());
    if (magnitude > deadzone) {
      float cameraXOffset = aim.x() / magnitude;
      float cameraYOffset = aim.y() / magnitude;
      magnitude = (magnitude - deadzone) / (1.0 - deadzone);
      if (magnitude > 1)
        magnitude = 1;
      cameraXOffset *= magnitude * 0.5f * camera.pixelRatio() * panFactor;
      cameraYOffset *= magnitude * 0.5f * camera.pixelRatio() * panFactor;
      m_cameraXOffset = (m_cameraXOffset * (cameraSpeedFactor - 1.0) + cameraXOffset) / cameraSpeedFactor;
      m_cameraYOffset = (m_cameraYOffset * (cameraSpeedFactor - 1.0) + cameraYOffset) / cameraSpeedFactor;
    }
  } else {
    if (m_cameraOffsetDownTime > 0.0f && m_cameraOffsetDownTime < 0.333333f)
      m_snapBackCameraOffset = true;
    if (m_snapBackCameraOffset) {
      m_cameraXOffset = (m_cameraXOffset * (cameraSpeedFactor - 1.0)) / cameraSpeedFactor;
      m_cameraYOffset = (m_cameraYOffset * (cameraSpeedFactor - 1.0)) / cameraSpeedFactor;
    }
    m_cameraOffsetDownTime = 0.f;
  }
  Vec2F newCameraPosition;

  newCameraPosition.setX(playerCameraPosition.x());
  newCameraPosition.setY(playerCameraPosition.y());

  auto baseCamera = newCameraPosition;

  const float cameraSmoothRadius = assets->json("/interface.config:cameraSmoothRadius").toFloat();
  const float cameraSmoothFactor = assets->json("/interface.config:cameraSmoothFactor").toFloat();

  auto cameraSmoothDistance = m_universeClient->worldClient()->geometry().diff(m_cameraPositionSmoother, newCameraPosition).magnitude();
  if (cameraSmoothDistance > cameraSmoothRadius) {