Function drawFPS

src/OpenLoco/src/Graphics/FPSCounter.cpp:37–60

    }

    void drawFPS(DrawingContext& drawingCtx)
    {
        auto tr = Gfx::TextRenderer(drawingCtx);

        // Measure FPS
        const float fps = measureFPS();

        // Format string
        char buffer[64];
        buffer[0] = ControlCodes::Font::bold;
        buffer[1] = ControlCodes::Font::outline;
        buffer[2] = ControlCodes::Colour::white;

        const char* formatString = (_currentFPS >= 10.0f ? "%.0f" : "%.1f");
        snprintf(&buffer[3], std::size(buffer) - 3, formatString, fps);

        // Draw text
        const int stringWidth = tr.getStringWidth(buffer);
        auto point = Ui::Point(Ui::width() / 2 - (stringWidth / 2), 2);
        tr.drawString(point, Colour::black, buffer);

        // Make area dirty so the text doesn't get drawn over the last
        invalidateRegion(point.x, point.y, point.x + stringWidth, point.y + 16);
    }
}