Support-Resistance-Box-Trading-System - aflcode.com | Latest collection of Amibroker afl 2023

Support-Resistance-Box-Trading-System
//www.aflcode.com
box1=0;
box2=0;
SetBarsRequired(10000,10000);
procedure fillDarvas(start,end,swap,top, bottom )
{
   for ( j = start; j < end; j++)
   {
       if( box1[j] == swap)
  box1[j]= top ;
else
box1[j]= bottom;

       if(box2[j] == swap)
  box2[j]= bottom ;
else
box2[j]= top;
   }
}

BoxArr1 = 0;
BoxArr2 = 0;
StateArray = 0;
DBuy = 0;
DSell = 0;
TopArray = 0;
BotArray = 0;
tick=0;

BoxTop = High[0];
BoxBot = Low[0];
swap=0;
state = 0;
BoxStart = 0;

for (i=0; i<BarCount; i++)
{
 if (state==5)
 {
  TopArray[i]=BoxTop;
  BotArray[i]=BoxBot;
  if (Low[i]<(BoxBot*(1-tick/100)) || High[i]>(BoxTop*(1+tick/100)))
  {
fillDarvas(BoxStart,i,swap,BoxTop,BoxBot);

  state = 1;
  swap =  !swap;
  BoxTop = High[i];
  BoxStart = i;
  }
 }
 else
 {
  if (High[i]<BoxTop)
  {
      if ((state<3) || (Low[i]>BoxBot))
      {
   state++;
   }
      else
   {
      state=3;
   }
      if (state==3)
      BoxBot=Low[i];
  }
  else
  {
      state=1;
      BoxTop=High[i];
  }
 }
 StateArray[i] = state;
}

fillDarvas(BoxStart,BarCount,swap,BoxTop,BoxBot);
Buy=Cover=H>Ref(box1,-1) AND H>Ref(box2,-1) AND Ref(statearray,-1)==5;
Short=Sell=L<Ref(box1,-1) AND L<Ref(box2,-1) AND Ref(statearray,-1)==5;

Plot(C,"",colorBlack,styleCandle);
PlotShapes(shapeUpArrow*(Buy),colorGreen); 
PlotShapes(shapeDownArrow*(Sell),colorRed); 

Plot( box1, " RESI " , colorLime, styleLine );
Plot( box2, " SUPP" , colorRed, styleLine );
_SECTION_END();