FlatTrend w MACD_v1

//+------------------------------------------------------------------+
//|                                                    FlatTrend.mq4 |
//|                                                       Kirk Sloan |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Kirk Sloan"
#property link      "http://www.metaquotes.net"

#property indicator_separate_window
#property indicator_minimum 0
#property indicator_maximum 1
#property indicator_buffers 3
#property indicator_color1 Red
#property indicator_color2 LimeGreen
#property indicator_color3 Gold
//---- input parameters
extern int Minutes=60;
extern int MACD_Fast = 8;
extern int MACD_Slow = 21;
extern int MACD_MA = 9;
extern int nBar = 1000;
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double Ma;
double hhigh, llow;
double Psar;
double PADX,NADX;
string TimeFrameStr;
double MA1,MA2,MA3;
double MACD_Signal,MACD_Main;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
  SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,1,Red);
  SetIndexBuffer(0,ExtMapBuffer1);
  SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,1, LimeGreen);
  SetIndexBuffer(1,ExtMapBuffer2);
  SetIndexStyle(2,DRAW_HISTOGRAM,STYLE_SOLID,1, Gold);
  SetIndexBuffer(2,ExtMapBuffer3);

switch(Minutes)
   {
      case 1 : TimeFrameStr="Period_M1"; break;
      case 5 : TimeFrameStr="Period_M5"; break;
      case 15 : TimeFrameStr="Period_M15"; break;
      case 30 : TimeFrameStr="Period_M30"; break;
      case 60 : TimeFrameStr="Period_H1"; break;
      case 240 : TimeFrameStr="Period_H4"; break;
      case 1440 : TimeFrameStr="Period_D1"; break;
      case 10080 : TimeFrameStr="Period_W1"; break;
      case 43200 : TimeFrameStr="Period_MN1"; break;
      default : TimeFrameStr="Current Timeframe"; Minutes=0;
   }
   IndicatorShortName("Flat Trend w MACD ("+TimeFrameStr+")");  

 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----

for (int i = 0; i < nBar; i++){
   ExtMapBuffer1[i]=0;
   ExtMapBuffer2[i]=0;
   ExtMapBuffer3[i]=0;
   

   MACD_Signal=iMACD(NULL,Minutes,MACD_Fast,MACD_Slow,MACD_MA,PRICE_CLOSE,MODE_SIGNAL,i);
   MACD_Main  =iMACD(NULL,Minutes,MACD_Fast,MACD_Slow,MACD_MA,PRICE_CLOSE,MODE_MAIN,i);
   
   if(MACD_Signal < MACD_Main && MACD_Main > 0)ExtMapBuffer2[i] = 1;
   if(MACD_Signal > MACD_Main && MACD_Main < 0)ExtMapBuffer1[i] = 1;
   if(ExtMapBuffer1[i] == 0 && ExtMapBuffer2[i] == 0)
   {ExtMapBuffer3[i] = 1;}
  
}
 
 
 
   
//----
   return(0);
  }
//+------------------------------------------------------------------+