Method Update

src/game/client/ui.cpp:183–265

}

void CUi::Update(vec2 MouseWorldPos)
{
	const vec2 WindowSize = vec2(Graphics()->WindowWidth(), Graphics()->WindowHeight());
	const CUIRect *pScreen = Screen();

	unsigned UpdatedMouseButtonsNext = 0;
	if(Enabled())
	{
		// Update mouse buttons based on mouse keys
		for(int MouseKey = KEY_MOUSE_1; MouseKey <= KEY_MOUSE_3; ++MouseKey)
		{
			if(Input()->KeyIsPressed(MouseKey))
			{
				m_UpdatedMouseButtons |= 1 << (MouseKey - KEY_MOUSE_1);
			}
		}

		// Update mouse position and buttons based on touch finger state
		UpdateTouchState(m_TouchState);
		if(m_TouchState.m_AnyPressed)
		{
			if(!CheckMouseLock())
			{
				m_UpdatedMousePos = m_TouchState.m_PrimaryPosition * WindowSize;
				m_UpdatedMousePos.x = std::clamp(m_UpdatedMousePos.x, 0.0f, WindowSize.x - 1.0f);
				m_UpdatedMousePos.y = std::clamp(m_UpdatedMousePos.y, 0.0f, WindowSize.y - 1.0f);
			}
			m_UpdatedMouseDelta += m_TouchState.m_PrimaryDelta * WindowSize;

			// Scroll currently hovered scroll region with touch scroll gesture.
			if(m_TouchState.m_ScrollAmount != vec2(0.0f, 0.0f))
			{
				if(m_pHotScrollRegion != nullptr)
				{
					m_pHotScrollRegion->ScrollRelativeDirect(-m_TouchState.m_ScrollAmount.y * pScreen->h);
				}
				m_TouchState.m_ScrollAmount = vec2(0.0f, 0.0f);
			}

			// We need to delay the click until the next update or it's not possible to use UI
			// elements because click and hover would happen at the same time for touch events.
			if(m_TouchState.m_PrimaryPressed)
			{
				UpdatedMouseButtonsNext |= 1;
			}
			if(m_TouchState.m_SecondaryPressed)
			{
				UpdatedMouseButtonsNext |= 2;
			}
		}
	}

	m_MousePos = m_UpdatedMousePos * vec2(pScreen->w, pScreen->h) / WindowSize;
	m_MouseDelta = m_UpdatedMouseDelta;
	m_UpdatedMouseDelta = vec2(0.0f, 0.0f);
	m_MouseWorldPos = MouseWorldPos;
	m_LastMouseButtons = m_MouseButtons;
	m_MouseButtons = m_UpdatedMouseButtons;