Function update

TheForceEngine/TFE_FrontEndUI/console.cpp:538–618

	}

	void update()
	{
		DisplayInfo display;
		TFE_RenderBackend::getDisplayInfo(&display);
		const u32 w = display.width;
		const u32 h = display.height;
		const f32 dt = (f32)TFE_System::getDeltaTime();

		if (s_anim != 0.0f)
		{
			s_height += s_anim * 3.0f * dt;
			if (s_height <= 0.0f)
			{
				s_height = 0.0f;
				s_anim = 0.0f;
			}
			else if (s_height >= 1.0f)
			{
				s_height = 1.0f;
				s_anim = 0.0f;
			}
		}
		if (s_height <= 0.0f) { return; }

		const f32 consoleHeight = floorf(s_height * c_maxConsoleHeight * f32(h));
		ImGui::PushFont(s_consoleFont);
		ImGui::OpenPopup("console");
		ImGui::SetNextWindowSize(ImVec2(f32(w), consoleHeight));
		ImGui::SetNextWindowPos(ImVec2(0.0f, 0.0f));
		ImGui::SetWindowFocus("##InputField");
		if (ImGui::BeginPopup("console", ImGuiWindowFlags_NoScrollbar))
		{
			if (TFE_Input::bufferedKeyDown(KEY_PAGEUP))
			{
				s_historyScroll++;
			}
			else if (TFE_Input::bufferedKeyDown(KEY_PAGEDOWN))
			{
				s_historyScroll--;
			}

			const s32 count = (s32)s_history.size();
			const s32 elementsPerPage = ((s32)consoleHeight - 16 - s_fontSize) / s_fontSize;
			s_historyScroll = std::max(0, std::min(s_historyScroll, count - elementsPerPage));
			s32 start = count - 1 - s_historyScroll;

			s32 y = (s32)consoleHeight - 16 - 2*s_fontSize;
			for (s32 i = start; i >= 0 && y > -s_fontSize; i--, y -= s_fontSize)
			{
				ImGui::SetCursorPosY(f32(y));
				ImGui::TextColored(ImVec4(s_history[i].color.x, s_history[i].color.y, s_history[i].color.z, s_history[i].color.w), "%s", s_history[i].text.c_str());
			}

			ImGui::SetKeyboardFocusHere();
			ImGui::SetNextItemWidth(f32(w - 16));
			ImGui::SetCursorPosY(consoleHeight - 12.0f - s_fontSize);
			u32 flags = ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_NoHorizontalScroll |
						ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory;