PercentageCrossover

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

//|                                          PercentageCrossover.mq5 | 

//|                                        Copyright © 2009, Vic2008 | 

//|                                                                  | 

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

#property copyright "Copyright © 2009, Vic2008"

#property link ""

//---- =><5@ 25@A88 8=48:0B>@0

#property version   "1.00"

//---- >B@8A>2:0 8=48:0B>@0 2 3;02=>< >:=5

#property indicator_chart_window 

//---- :>;8G5AB2> 8=48:0B>@=KE 1CD5@>2

#property indicator_buffers 2 

//---- 8A?>;L7>20=> >4=> 3@0D8G5A:>5 ?>AB@>5=85

#property indicator_plots   1

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

//|  0@0<5B@K >B@8A>2:8 8=48:0B>@0   |

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

//---- >B@8A>2:0 8=48:0B>@0 2 2845 <=>3>F25B=>9 ;8=88

#property indicator_type1   DRAW_COLOR_LINE

//---- 2 :0G5AB25 F25B>2 8A?>;L7>20=K

#property indicator_color1  clrBlueViolet,clrOrange

//---- ;8=8O 8=48:0B>@0 - =5?@5@K2=0O :@820O

#property indicator_style1  STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 @02=0 3

#property indicator_width1  3

//---- >B>1@065=85 <5B:8 8=48:0B>@0

#property indicator_label1  "PercentageCrossover"

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

//|  %+  " + "      |

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

input double percent=1.0; // ?@>F5=B=>5 >B:;>=5=85 F5=K >B ?@54K4CI53> 7=0G5=8O 8=48:0B>@0

input int Shift=0;        // A4283 8=48:0B>@0 ?> 3>@87>=B0;8 2 10@0E

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

//---- >1JO2;5=85 48=0<8G5A:8E <0AA82>2, :>B>@K5 1C4CB 2 40;L=59H5< 8A?>;L7>20=K 2 :0G5AB25 8=48:0B>@=KE 1CD5@>2

double IndBuffer[],ColorIndBuffer[];

//---- >1JO2;5=85 3;>10;L=KE ?5@5<5==KE

double plusvar,minusvar;

//---- 1JO2;5=85 F5;KE ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

int min_rates_total;

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

//| Custom indicator indicator initialization function               | 

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

void OnInit()

  {

//---- =8F80;870F8O :>=AB0=B

   min_rates_total=2;

   double var1=percent/100;

   plusvar=1+var1;

   minusvar=1-var1;

   

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(0,IndBuffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 1 ?> 3>@87>=B0;8

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 1

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE);

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 F25B>2>9, 8=45:A=K9 1CD5@   

   SetIndexBuffer(1,ColorIndBuffer,INDICATOR_COLOR_INDEX);



//---- 8=8F80;870F88 ?5@5<5==>9 4;O :>@>B:>3> 8<5=8 8=48:0B>@0

   string shortname;

   StringConcatenate(shortname,"Percentage Crossover(percent = ",percent,")");

//--- A>740=85 8<5=8 4;O >B>1@065=8O 2 >B45;L=>< ?>4>:=5 8 2> 2A?;K20NI59 ?>4A:07:5

   IndicatorSetString(INDICATOR_SHORTNAME,shortname);

//--- >?@545;5=85 B>G=>AB8 >B>1@065=8O 7=0G5=89 8=48:0B>@0

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);

//---- 7025@H5=85 8=8F80;870F88

  }

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

//| Custom indicator iteration function                              | 

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

int OnCalculate(

                const int rates_total,    // :>;8G5AB2> 8AB>@88 2 10@0E =0 B5:CI5< B8:5

                const int prev_calculated,// :>;8G5AB2> 8AB>@88 2 10@0E =0 ?@54K4CI5< B8:5

                const int begin,          // =><5@ =0G0;0 4>AB>25@=>3> >BAGQB0 10@>2

                const double &price[]     // F5=>2>9 <0AA82 4;O @0AGQB0 8=48:0B>@0

                )

  {

//---- ?@>25@:0 :>;8G5AB20 10@>2 =0 4>AB0B>G=>ABL 4;O @0AGQB0

   if(rates_total<min_rates_total+begin) return(0);



//---- 1JO2;5=85 F5;KE ?5@5<5==KE

   int first,bar,bar1;

   double Middle;



//---- @0AGQB AB0@B>2>3> =><5@0 first 4;O F8:;0 ?5@5AGQB0 10@>2

   if(prev_calculated==0) // ?@>25@:0 =0 ?5@2K9 AB0@B @0AGQB0 8=48:0B>@0

     {

      first=1+begin; // AB0@B>2K9 =><5@ 4;O @0AGQB0 2A5E 10@>2

      IndBuffer[first-1]=price[first-1];

      //---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@>2

      PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total+begin);

     }

   else // AB0@B>2K9 =><5@ 4;O @0AGQB0 =>2KE 10@>2

     {

      first=prev_calculated-1;

     }



//---- A=>2=>9 F8:; @0AGQB0 A@54=59 ;8=88

   for(bar=first; bar<rates_total; bar++)

     {

      bar1=bar-1;

      if((price[bar]*minusvar)>IndBuffer[bar1]) Middle=price[bar]*minusvar;

      else

        {

         if(price[bar]*plusvar<IndBuffer[bar1]) Middle=price[bar]*plusvar;

         else Middle=IndBuffer[bar1];

        }

      IndBuffer[bar]=Middle;      

      ColorIndBuffer[bar]=ColorIndBuffer[bar-1];

      

      if(Middle>IndBuffer[bar-1]) ColorIndBuffer[bar]=0;

      if(Middle<IndBuffer[bar-1]) ColorIndBuffer[bar]=1;

     }

//----    

   return(rates_total);

  }

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