Cubetube - Its hip to be cube

Update Demo
SYSTEM_THREAD(ENABLED);
Cube cube=Cube();
String command="";
float parameters[9];
void setup()
{
        cube.begin();
        Serial.begin(115200);
}

void loop()
{
        while(Serial.available()>0)
        {
                char a=(char)Serial.read();
                if(a=='\n')
                        processCommand();
                else
                        command.concat(String(a));
        }

}

void processCommand()
{

        int index=0;
        int commaIndex=command.indexOf(',');
        String str;
        String commandString=command.substring(0,commaIndex);
        command=command.substring(commaIndex+1);
        do
        {
                commaIndex=command.indexOf(',');
                if(commaIndex!=-1)
                        str=command.substring(0,commaIndex);
                else
                        str=command;
                parameters[index]=str.toFloat();
                command=command.substring(commaIndex+1);
                index++;
        }
        while(commaIndex!=-1);

        command="";
        if(commandString.compareTo("setVoxel")==0)
                cube.setVoxel(Point(parameters[0],parameters[1],parameters[2]), Color(parameters[3],parameters[4],parameters[5]));
        if(commandString.compareTo("line")==0)
                cube.line(parameters[0],parameters[1],parameters[2],parameters[3],parameters[4],parameters[5],Color(parameters[6],parameters[7],parameters[8]));
        if(commandString.compareTo("shell")==0)
        {
                if(index==7)
                        cube.shell(parameters[0],parameters[1],parameters[2], parameters[3], Color(parameters[4],parameters[5],parameters[6]));
                if(index==8)
                        cube.shell(parameters[0],parameters[1],parameters[2], parameters[3], parameters[4], Color(parameters[5],parameters[6],parameters[7]));
        }
        if(commandString.compareTo("background")==0)
                cube.background(Color(parameters[0],parameters[1],parameters[2]));
        if(commandString.compareTo("show")==0)
                cube.show();

}