OnTick()

void Spices::CameraController::OnTick ( TimeStep & ts )

overridevirtual

The interface inherited from NativeScriptComponent, which is called every engine loop frame. We implemented mainly camera control here, the reason is query input has better performance than event.

@breif Only update view while viewport is hovered.

@breif Only update view while viewport is hovered.

Reimplemented from Spices::NativeScriptComponent.

Definition at line 27 of file CameraController.cpp.

    {
        SPICES_PROFILE_ZONE;
        
        m_Camera->IncreaseStableFrames();
 
        if (!SlateSystem::GetRegister()->GetViewPort()->IsHovered()) return;
 
        if (Input::IsKeyPressed(Key::LeftAlt))
        {
            const glm::vec2& mouse { Input::GetMouseX(), Input::GetMouseY() };
            const glm::vec2 delta = (mouse - m_InitialMousePosition) * 0.003f;
            m_InitialMousePosition = mouse;
            
            if (Input::IsMouseButtonPressed(Mouse::ButtonMiddle))
            {
                MousePan(delta);    
                m_Camera->ResetStableFrames();
            }
            else if (Input::IsMouseButtonPressed(Mouse::ButtonLeft))
            {
                MouseRotate(delta); 
                m_Camera->ResetStableFrames();
            }
            else if (Input::IsMouseButtonPressed(Mouse::ButtonRight))
            {
                MouseZoom(delta.y); 
                m_Camera->ResetStableFrames();
            }
 
            UpdateView();
        }
    }

References Spices::Mouse::ButtonLeft, Spices::Mouse::ButtonMiddle, Spices::Mouse::ButtonRight, Spices::Input::IsKeyPressed(), Spices::Input::IsMouseButtonPressed(), Spices::Key::LeftAlt, and UpdateView().