Today_Trend_last

//+------------------------------------------------------------------+
//|                                                  Today Trend.mq4 |
//|                                   Copyright © 2006, Jason Rivera |
//|                                      http://www.jasonerivera.com |
//+------------------------------------------------------------------+
//  Based on an excel spreadsheet posted by toro55 @
//  http://www.strategybuilderfx.com/forums/showthread.php?s=&threadid=16130
//  Posted for the benefit of those at the StrategyBuilder
//  community.
#property copyright "Copyright © 2006, Jason Rivera"
#property link      "http://www.jasonerivera.com"
//----
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Blue
#property indicator_color2 Red
#property indicator_color3 YellowGreen
#property indicator_color4 Red
//----External Variables
extern int PROFIT_TARGET=30;
extern bool SHOW_TARGET=true;
extern bool SHOW_REVERSAL=true;
//---- buffers
double UpBuffer[];
double DownBuffer[];
double TargetBuffer[];
double ReversalBuffer[];
//----variables
double H=0, L=0, O=0, C=0, R=0, S=0, Pivot=0, Spread=0, RevRate=0, MaxLoss=0, max=0, draw=0;
double S2,R2;
int action=0, action1=0, action2=0, action3=0;
int Under_Resistance=0;
string res="";
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexLabel(0,"Go Long");
   SetIndexLabel(1,"Go Short");
   SetIndexLabel(2,"Profit Target Line");
   SetIndexLabel(3,"Stop/Reversal Line");
   SetIndexStyle(0,DRAW_ARROW,STYLE_SOLID,1);
   SetIndexBuffer(0,UpBuffer);
   SetIndexStyle(1,DRAW_ARROW,STYLE_SOLID,1);
   SetIndexBuffer(1,DownBuffer);
   SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer(2,TargetBuffer);
   SetIndexStyle(3,DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer(3,ReversalBuffer);
//----
   SetIndexEmptyValue(0,0);
   SetIndexEmptyValue(1,0);
   SetIndexEmptyValue(2,0);
   SetIndexEmptyValue(3,0);
   SetIndexArrow(0,236);
   SetIndexArrow(1,238);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
   int pos =0;
   int m=0;
   int d=0;
   int y=0;
   string dt="";
   datetime some_time=0;
   int shift=0;
   int tc=1440;
   int min=0;
   int hr=0;
   int thour=0, tmin=0;
//---- 
   //script can only be run on daily chart or lower timeframe
   if(Period() > 1440)
     {
      Print("Indicator must be run on Daily chart or lesser timeframe");
      return(0);
     }
//---- check for possible errors
   if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
//----
   pos=Bars-counted_bars;
//----
   while(pos>=0)
     {
      m=TimeMonth(Time[pos]);
      d=TimeDay(Time[pos]);
      y=TimeYear(Time[pos]);
      min=TimeMinute(Time[pos]);
      hr=TimeHour(Time[pos]);
      dt=y + "." + m + "." + d + " " + hr + ":" + min;
      some_time=StrToTime(dt);
      //find the proper shift of the daily bar having the same date as this timeframe's bar having the current shift
      //we must do this in order to be able to run the indicator on smaller time frames in light of a bigger one
      shift=iBarShift(NULL,tc,some_time); //returns the correct shift of the current daily bar
      thour=TimeHour(iTime(NULL,60,iBarShift(NULL,60,some_time)));
      tmin=TimeMinute(iTime(NULL,Period(),pos));
      //create price reference lines
      if(SHOW_REVERSAL==true) {ReversalBuffer[pos]=ReversalBuffer[pos+1];}
      if(SHOW_TARGET==true) {TargetBuffer[pos]=TargetBuffer[pos+1];}
      //only trade on Open of Day; check for hour 0 && minute 0 for intraday timeframes
      if(thour==0 && tmin==0)
        {
         H=iHigh(NULL,tc,shift+1);   //previous daily bar's high
         L=iLow(NULL,tc,shift+1);    //previous daily bar's low
         C=iClose(NULL,tc,shift+1);  //previous daily bar's close
         O=Open[pos];                //current Period() bar's open
//----
         Spread=H - L;
/*         
         Pivot = (Spread*2)/5;
         R = H - Pivot;
         S = L + Pivot;
*/
         Pivot=(H + L + C)/3;
         R=2*Pivot - L;
         S=2*Pivot - H;
         S2=Pivot - (R - S);
         R2=Pivot + (R-S);
         //reset Buy/Sell actions
         action1=0;
         action2=0;
         action3=0;
         Under_Resistance=0;
//----
         if(O < R)
           {
            Under_Resistance=1;
            }
               else
            {
            Under_Resistance=-1;
           }
         //Calculate the 1st action
         if(O < H && O > R) action1=-1;  //"Sell"
         if(O > L && O < S) action1=1;   //"Buy"
         //Calculate the 2nd action
         if(Under_Resistance==1 && (R-O) < (O-S)) action2=-1;   //"Sell"
         if(Under_Resistance==1 && (R-O)>=(O-S)) action2=1;   //"Buy"
         //Calculate the 3rd action
         if(O<=L) action3=-1;  //"Sell"
         if(O>=H) action3=1;   //"Buy"            
         //Calculate the Reversal Rate
/*         
         if(action2 == 1) RevRate = L;
         if(action2 == -1) RevRate = H;
         if(action1 == -1) RevRate = H;
         if(action1 == 1) RevRate = L;
         if(action3 == 1) RevRate = H;
         if(action3 == -1) RevRate = L;
*/
         if(action2==1) RevRate=S;
         if(action2==-1) RevRate=R;
         if(action1==-1) RevRate=R2;
         if(action1==1) RevRate=S2;
         if(action3==1)
           {
            if(O<=R2) RevRate=H;
            if(O > R2) RevRate=R2;
           }
         if(action3==-1)
           {
            if(O>=S2) RevRate=L;
            if(O < S2) RevRate=S2;
           }
         //Calculate the Max Loss
         if(action2==1) MaxLoss=O - S;
         if(action2==-1) MaxLoss=R - O;
         if(action1==-1) MaxLoss=R2 - O;
         if(action1==1) MaxLoss=O - S2;
         if(action3==1)
           {
            if(O<=R2) MaxLoss=O - H;
            if(O > R2) MaxLoss=O - R2;
           }
         if(action3==-1)
           {
            if(O<=R2) MaxLoss=L - O;
            if(O > R2) MaxLoss=S2 - O;
           }
/*         
         if(action2 == 1) MaxLoss = O - L;
         if(action2 == -1) MaxLoss = H - O;
         if(action1 == -1) MaxLoss = H - O;
         if(action1 == 1) MaxLoss = O - L;
         if(action3 == 1) MaxLoss = O - H;
         if(action3 == -1) MaxLoss = L - O;
*/
         if(action1!=0)  action=action1;
         if(action2!=0)  action=action2;
         if(action3!=0)  action=action3;
         if(action==1)//buy
           {
            UpBuffer[pos]=O;
//----
            if(SHOW_TARGET==true)
              {
               TargetBuffer[pos+1]=0;  //keep line from warping to next value; comment line to see on daily timeframe
               TargetBuffer[pos]=O + (PROFIT_TARGET*Point);
              }
            if(SHOW_REVERSAL==true)
              {
               ReversalBuffer[pos+1]=0;   //keep line from warping to next value; comment line to see on daily timeframe
               ReversalBuffer[pos]=RevRate;
              }
           }
         if(action==-1)//sell
           {
            DownBuffer[pos]=O;
//----
            if(SHOW_TARGET==true)
              {
               TargetBuffer[pos+1]=0;  //keep line from warping to next value; comment line to see on daily timeframe
               TargetBuffer[pos]=O - (PROFIT_TARGET*Point);
              }
            if(SHOW_REVERSAL==true)
              {
               ReversalBuffer[pos+1]=0;   //keep line from warping to next value; comment line to see on daily timeframe
               ReversalBuffer[pos]=RevRate;
              }
           }
        }
      pos--;
     }
   Comment(ToString(action), " @ ", O);
//----
   return(0);
  }
string ToString(int action)
  {
   if(action==1) return("Buy");
   if(action==-1) return("Sell");
   if(action==0) return("No Action");
  }
//+------------------------------------------------------------------+