Calc Smooth Radius

int hwZones = 3;   // Left, Top, Right
int hwColours = 3; // R, G, B
int hwChannels = hwZones * hwColours;

int hwBytesPerSecond = Convert.ToInt32(comboBaud.Text, 10) / 8;
//                   = 9600/8 = 1200    (divided by 8 (bits))

double hwCyclesPerSecond = hwBytesPerSecond / hwChannels;
//                       = 1200/9 = ~133

double hwSafeCyclesPerSecond = (int)(hwCyclesPerSecond * 0.85);
//                           =  ~133 - 15%
// (safe 15% allows to perform Aggressive Attack immediately)

// Calculate IntelliInterval Speed
global.var_Interval = (int)(1000 / hwSafeCyclesPerSecond);
//                  = (1sec / Cycles)

if (global.var_Interval < 1) global.var_Interval = 1;
IntelliInterval.Value = global.var_Interval;

int defMovieFrameRate = 30;
double swRealFrames = defMovieFrameRate / 2;
//               = 30 / 2 = 15
//  Display 50% real frames

global.var_MaxSmoothRadius = (int)(hwCyclesPerSecond / swRealFrames);