Method SetColor

Controllers/YeelightController/YeelightController.cpp:185–246

}

void YeelightController::SetColor(unsigned char red, unsigned char green, unsigned char blue)
{
    json command;

    /*-----------------------------------------------------------------*\
    | Yeelight doesn't seem to support proper RGB, it just uses RGB to  |
    | calculate hue and saturation.  It doesn't affect brightness.  To  |
    | work around this, determine the highest value and scale to 100 to |
    | use as brightness                                                 |
    \*-----------------------------------------------------------------*/
    float bright = red;

    if(green > bright)
    {
        bright          = green;
    }

    if(blue > bright)
    {
        bright          = blue;
    }

    bright = (100.0f * (bright / 255.0f));

    /*-----------------------------------------------------------------*\
    | Calculate the RGB field as 0x00RRGGBB                             |
    \*-----------------------------------------------------------------*/
    unsigned int rgb = (red << 16) | (green << 8) | (blue << 0);

    /*-----------------------------------------------------------------*\
    | Because of Yeelight's weird quirks with true RGB, we have to use  |
    | the Color Flow option but configure only one frame.  Because the  |
    | set_cf option provides both RGB and brightness in one command, it |
    | allows better RGB control than the set_rgb function.              |
    \*-----------------------------------------------------------------*/
    std::string cf = "50,1," + std::to_string(rgb) +"," + std::to_string((int)bright);

    /*-----------------------------------------------------------------*\
    | Fill in the set_cf command with the color flow string.            |
    \*-----------------------------------------------------------------*/
    command["id"]               = 1;
    command["method"]           = "start_cf";
    command["params"][0]        = 1;
    command["params"][1]        = 1;
    command["params"][2]        = cf;

    /*-----------------------------------------------------------------*\
    | Convert the JSON object to a string and write it                  |
    \*-----------------------------------------------------------------*/
    std::string command_str     = command.dump().append("\r\n");

    if(music_mode)
    {
        send(*music_mode_sock, (char *)command_str.c_str(), command_str.length(), 0);
    }
    else
    {
        port.tcp_client_connect();