Method Draw

TombEngine/Game/Hud/InteractionHighlighter.cpp:280–328

	}

	void InteractionHighlighterController::Draw() const
	{
		if (!g_Configuration.EnableInteractionHighlighter)
			return;

		if (_previous.Fade == 0.0f && _current.Fade == 0.0f)
			return;

		if (!Objects[ID_INTERACTION_SPRITES].loaded || Objects[ID_INTERACTION_SPRITES].nmeshes == 0)
		{
			TENLog(fmt::format("Missing sprite sequence {} for drawing interaction highlighter.", GetObjectName(ID_INTERACTION_SPRITES)), LogLevel::Warning);
			return;
		}

		auto distance = Vector3::Distance(Camera.pos.ToVector3(), _current.Position);
		float scale = std::min(SPRITE_SCALE, INTERACTION_DISTANCE / distance * SPRITE_SCALE);
		float distanceAlpha = std::min(1.0f, scale * 10.0f);

		auto drawState = [&](const HighlightState& state)
		{
			if (state.Fade <= 0.0f)
				return;

			auto pos2D = g_Renderer.Get2DPosition(state.Position);
			if (!pos2D.has_value())
				return;

			int spriteID = std::max(0, (int)state.Type - 1);
			if (abs(Objects[ID_INTERACTION_SPRITES].nmeshes) <= spriteID)
				spriteID = 0;

			float alpha = state.Fade;
			float phase = (GlobalCounter % (int)FADE_RATE) / FADE_RATE;
			float oscillation = 0.75f + 0.25f * sin(phase * PI * 2.0f);
			alpha *= oscillation;
			alpha *= distanceAlpha;

			auto color = Vector4(1.0f, 1.0f, 1.0f, alpha);

			AddDisplaySprite(
				ID_INTERACTION_SPRITES, spriteID,
				*pos2D, 0, Vector2(scale), color,
				0, DisplaySpriteAlignMode::Center, DisplaySpriteScaleMode::Fill,
				BlendMode::Additive, DisplaySpritePhase::Draw);
		};

		drawState(_previous);
		drawState(_current);
	}

	void InteractionHighlighterController::Update()
	{