OnMouseScroll()

bool Spices::CameraController::OnMouseScroll ( MouseScrolledEvent & e )

private

Event OnMouseScroll. Scale the camera.

Parameters

[in]

e

Event Wrapper.

Returns

true if we need block the event

Definition at line 80 of file CameraController.cpp.

    {
        SPICES_PROFILE_ZONE;
        
        if (!SlateSystem::GetRegister()->GetViewPort()->IsHovered()) return false;
 
        const float ratio = static_cast<float>(m_ViewportWidth) / static_cast<float>(m_ViewportHeight);
 
        const float delta = e.GetYOffset() * 0.1f;
 
        m_ZoomLevel += delta;
        m_ZoomLevel = std::max(m_ZoomLevel, 0.2f);
 
        if (m_Camera->GetProjectionType() == ProjectionType::Orthographic)
        {
            m_Camera->SetOrthographic(-ratio * m_ZoomLevel, ratio * m_ZoomLevel, -m_ZoomLevel, m_ZoomLevel, 0.001f, 100000.0f);
        }
 
        MouseZoom(delta);
        UpdateView();
        m_Camera->ResetStableFrames();
        return false;
    }

References Spices::MouseScrolledEvent::GetYOffset(), m_ViewportHeight, m_ViewportWidth, m_ZoomLevel, MouseZoom(), and UpdateView().

Referenced by OnEvent().