Beginner_v1

ÿþ//+------------------------------------------------------------------+

//|                                                         Beginner |

//|                                                 Copyright © 2025 |

//+------------------------------------------------------------------+

#property version   "1.02"

#property description "Beginner - basic indicator for marking chart's highs and lows."

#property description "Repaints."

#property strict



#property indicator_chart_window

#property indicator_buffers 2

#property indicator_color1 clrBlue

#property indicator_type1 DRAW_ARROW

#property indicator_style1 STYLE_SOLID

#property indicator_width1 1

#property indicator_color2 clrRed

#property indicator_type2 DRAW_ARROW

#property indicator_style2 STYLE_SOLID

#property indicator_width2 1



#define   SH_BUY   1

#define   SH_SELL  -1



input int AllBars = 0;  // AllBars: How many bars to calculate on. 0 - all.

input int Otstup  = 30; // Otstup: Percentage distance to consider new low/high.

input int Per     = 9;  // Period: Number of bars to seek high/low on.



// Indicator buffers.

double    BufD[];

double    BufU[];



// Global variables.

int NB, UD;



//+------------------------------------------------------------------+

//| Initialization.                                                  |

//+------------------------------------------------------------------+

int init()

{

   // Calculating NB - number of bars to calculate the indicator on.

   if ((Bars < AllBars + Per) || (AllBars == 0)) NB = Bars - Per;

   else NB = AllBars;

   

   IndicatorShortName("Beginner(" + IntegerToString(Per) + ")");

   

   // Dots.

   SetIndexArrow(0, 159);

   SetIndexArrow(1, 159);

   

   SetIndexBuffer(0, BufU);

   SetIndexBuffer(1, BufD);

   

   SetIndexDrawBegin(0, Bars - NB);

   SetIndexDrawBegin(1, Bars - NB);

   

   SetIndexEmptyValue(0, EMPTY_VALUE);

   SetIndexEmptyValue(1, EMPTY_VALUE);

   

   return(0);

}



//+------------------------------------------------------------------+

//| Indicator main function.                                         |

//+------------------------------------------------------------------+

int start()

{

   int CB = IndicatorCounted();



   if (CB < 0) return(-1);

   else if (NB > Bars - CB) NB = Bars - CB + 100;

   

   for (int SH = 1; SH < NB; SH++)

   {

      double R;

      int i;

      

      for (R = 0, i = SH; i < SH + 10; i++)

         R += (10 + SH - i) * (High[i] - Low[i]);

      

      R /= 55;



      double SHMax = High[iHighest(Symbol(), Period(), MODE_HIGH, Per, SH)];

      double SHMin = Low[iLowest(Symbol(), Period(), MODE_LOW, Per, SH)];

      

      BufU[SH] = EMPTY_VALUE;

      BufD[SH] = EMPTY_VALUE;

      

      if ((Close[SH] < SHMin + (SHMax - SHMin) * Otstup / 100) && (UD != SH_SELL))

      {

         BufU[SH] = Low[SH] - R * 0.5;

         UD = SH_SELL;

      }

      else if ((Close[SH] > SHMax - (SHMax - SHMin) * Otstup / 100) && (UD != SH_BUY))

      {

         BufD[SH] = High[SH] + R * 0.5;

         UD = SH_BUY;

      }

   }

   

   return(0);

}