ADX_coloured

//+------------------------------------------------------------------+
//|                                                 ADX_coloured.mq4 |
//|                                                   Piotr Lisowski |
//|                                          piotr.lisowski@achem.pl |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net/"

#property indicator_separate_window
#property indicator_buffers 5
#property indicator_color1 LightSeaGreen // neutral
#property indicator_color2 YellowGreen
#property indicator_color3 Wheat
#property indicator_color4 Lime /// UP
#property indicator_color5 Red // DOWN
//---- input parameters
extern int ADXPeriod=14;
extern int colour_level=20;
//---- buffers
double ADXBuffer[];
double ADXUpBuffer[];
double ADXDownBuffer[];
double PlusDiBuffer[];
double MinusDiBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- 3 additional buffers are used for counting.
   IndicatorBuffers(5);
//---- indicator buffers
   SetIndexBuffer(0,ADXBuffer);
   SetIndexBuffer(1,PlusDiBuffer);
   SetIndexBuffer(2,MinusDiBuffer);
   SetIndexBuffer(3,ADXUpBuffer);
   SetIndexBuffer(4,ADXDownBuffer);
   
//---- name for DataWindow and indicator subwindow label
   IndicatorShortName("ADX("+ADXPeriod+")");
   SetIndexLabel(0,"ADX");
   SetIndexLabel(1,"+DI");
   SetIndexLabel(2,"-DI");
   SetIndexLabel(3,"ADXUp");
   SetIndexLabel(4,"ADXDown");
//----
   SetIndexDrawBegin(0,ADXPeriod);
   SetIndexDrawBegin(1,ADXPeriod);
   SetIndexDrawBegin(2,ADXPeriod);
   SetIndexDrawBegin(3,ADXPeriod);
   SetIndexDrawBegin(4,ADXPeriod);
   SetIndexStyle(1, DRAW_LINE, STYLE_DOT);
   SetIndexStyle(2, DRAW_LINE, STYLE_DOT);

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Average Directional Movement Index                               |
//+------------------------------------------------------------------+
int start()
  {
 
//---- 
    int limit;
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) counted_bars=0;
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;

   double adx_0,adx_1,dmip_0,dmip_1,dmim_0,dmim_1;
   
   for(int i = 0 ;i < limit ;i++)
   {
      
 
      adx_0 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,0,i);
      adx_1 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,0,i+1);
      
      dmip_0 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,1,i);
      dmip_1 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,1,i+1);
   
      dmim_0 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,2,i);
      dmim_1 = iADX(NULL,0,ADXPeriod,PRICE_CLOSE,2,i+1);
   
    
      if(adx_0>adx_1&&dmip_0>dmim_0&&adx_0>=colour_level) 
      {//up
         ADXBuffer[i] = EMPTY_VALUE;
         ADXUpBuffer[i] = adx_0;
         ADXDownBuffer[i] = EMPTY_VALUE;
      }
      else if(adx_0>adx_1&&dmip_0<dmim_0&&adx_0>=colour_level) 
      {//down
         ADXBuffer[i] = EMPTY_VALUE;
         ADXUpBuffer[i] = EMPTY_VALUE;
         ADXDownBuffer[i] = adx_0;
      }
      else
      {
         ADXBuffer[i] = adx_0;
         ADXUpBuffer[i] = EMPTY_VALUE;
         ADXDownBuffer[i] = EMPTY_VALUE;
      }
         ADXBuffer[i] = adx_0;
         PlusDiBuffer[i] = dmip_0;
         MinusDiBuffer[i] = dmim_0;      
   }  
//----
 

   return(0);
  }
//+------------------------------------------------------------------+