#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Green
#property indicator_color2 Violet
#property indicator_color3 Green
#property indicator_color4 Violet

extern int MA_Price = 0;
extern int MA_Length = 1;
extern int MA_Mode = 0;
extern int ATR_Length = 8;
extern double Kv = 4.0;
extern double MoneyRisk = 1.0;
extern bool usePrice_HiLoBreak = TRUE;
extern bool useMA_HiLoEnvelope = FALSE;
extern int AlertMode = 0;
extern int VisualMode = 0;
extern string Applied_Price_ = "0-C,1-O,2-H,3-L,4-Median(H+L)/2,5-Typical(H+L+C)/3,6-Weighted(H+L+C+C)/4";
extern string MAmethod_mode_ = "0-SMA,1-EMA,2-SMMA,3-LWMA";
extern string Visual_Mode___ = "0-lines,1-dots ";
double g_ibuf_148[];
double g_ibuf_152[];
double g_ibuf_156[];
double g_ibuf_160[];
double g_ibuf_164[];
double g_ibuf_168[];
double g_ibuf_172[];
bool gi_176 = FALSE;
bool gi_180 = FALSE;

int init() {
   IndicatorBuffers(7);
   SetIndexBuffer(0, g_ibuf_148);
   SetIndexBuffer(1, g_ibuf_152);
   SetIndexBuffer(2, g_ibuf_156);
   SetIndexBuffer(3, g_ibuf_160);
   SetIndexBuffer(4, g_ibuf_164);
   SetIndexBuffer(5, g_ibuf_168);
   SetIndexBuffer(6, g_ibuf_172);
   if (VisualMode == 0) {
      SetIndexStyle(0, DRAW_LINE);
      SetIndexStyle(1, DRAW_LINE);
   } else {
      SetIndexStyle(0, DRAW_ARROW);
      SetIndexStyle(1, DRAW_ARROW);
      SetIndexArrow(0, 159);
      SetIndexArrow(1, 159);
   }
   SetIndexStyle(2, DRAW_ARROW);
   SetIndexStyle(3, DRAW_ARROW);
   SetIndexArrow(2, 108);
   SetIndexArrow(3, 108);
   string ls_0 = " Guard Indicator(" + MA_Length + "," + ATR_Length + "," + DoubleToStr(Kv, 3) + ")";
   IndicatorShortName(ls_0);
   SetIndexLabel(0, "UpTrend");
   SetIndexLabel(1, "DnTrend");
   SetIndexLabel(2, "UpSignal");
   SetIndexLabel(3, "DnSignal");
   SetIndexDrawBegin(0, MA_Length + ATR_Length);
   SetIndexDrawBegin(1, MA_Length + ATR_Length);
   SetIndexDrawBegin(2, MA_Length + ATR_Length);
   SetIndexDrawBegin(3, MA_Length + ATR_Length);
   return (0);
}

int start() {
   int li_4;
   double l_ima_12;
   double l_ima_20;
   string ls_28;
   int l_ind_counted_8 = IndicatorCounted();
   if (l_ind_counted_8 > 0) li_4 = Bars - l_ind_counted_8;
   if (l_ind_counted_8 < 0) return (0);
   if (l_ind_counted_8 == 0) li_4 = Bars - MA_Length - 1;
   for (int li_0 = li_4; li_0 >= 0; li_0--) {
      if (useMA_HiLoEnvelope) {
         l_ima_12 = iMA(NULL, 0, MA_Length, 0, MA_Mode, PRICE_HIGH, li_0);
         l_ima_20 = iMA(NULL, 0, MA_Length, 0, MA_Mode, PRICE_LOW, li_0);
      } else {
         l_ima_12 = iMA(NULL, 0, MA_Length, 0, MA_Mode, MA_Price, li_0);
         l_ima_20 = iMA(NULL, 0, MA_Length, 0, MA_Mode, MA_Price, li_0);
      }
      g_ibuf_168[li_0] = l_ima_12 + Kv * iATR(NULL, 0, ATR_Length, li_0);
      g_ibuf_164[li_0] = l_ima_20 - Kv * iATR(NULL, 0, ATR_Length, li_0);
      g_ibuf_172[li_0] = g_ibuf_172[li_0 + 1];
      if (usePrice_HiLoBreak) {
         if (High[li_0] > g_ibuf_168[li_0 + 1]) g_ibuf_172[li_0] = 1;
         if (Low[li_0] < g_ibuf_164[li_0 + 1]) g_ibuf_172[li_0] = -1;
      } else {
         if (l_ima_12 > g_ibuf_168[li_0 + 1]) g_ibuf_172[li_0] = 1;
         if (l_ima_20 < g_ibuf_164[li_0 + 1]) g_ibuf_172[li_0] = -1;
      }
      if (g_ibuf_172[li_0] > 0.0) {
         if (g_ibuf_164[li_0] < g_ibuf_164[li_0 + 1]) g_ibuf_164[li_0] = g_ibuf_164[li_0 + 1];
         g_ibuf_148[li_0] = g_ibuf_164[li_0] - (MoneyRisk - 1.0) * iATR(NULL, 0, ATR_Length, li_0);
         if (g_ibuf_148[li_0] < g_ibuf_148[li_0 + 1] && g_ibuf_148[li_0 + 1] != EMPTY_VALUE) g_ibuf_148[li_0] = g_ibuf_148[li_0 + 1];
         if (g_ibuf_172[li_0 + 1] != g_ibuf_172[li_0]) g_ibuf_156[li_0] = g_ibuf_148[li_0];
         else g_ibuf_156[li_0] = EMPTY_VALUE;
         g_ibuf_152[li_0] = EMPTY_VALUE;
         g_ibuf_160[li_0] = EMPTY_VALUE;
      } else {
         if (g_ibuf_172[li_0] < 0.0) {
            if (g_ibuf_168[li_0] > g_ibuf_168[li_0 + 1]) g_ibuf_168[li_0] = g_ibuf_168[li_0 + 1];
            g_ibuf_152[li_0] = g_ibuf_168[li_0] + (MoneyRisk - 1.0) * iATR(NULL, 0, ATR_Length, li_0);
            if (g_ibuf_152[li_0] > g_ibuf_152[li_0 + 1]) g_ibuf_152[li_0] = g_ibuf_152[li_0 + 1];
            if (g_ibuf_172[li_0 + 1] != g_ibuf_172[li_0]) g_ibuf_160[li_0] = g_ibuf_152[li_0];
            else g_ibuf_160[li_0] = EMPTY_VALUE;
            g_ibuf_148[li_0] = EMPTY_VALUE;
            g_ibuf_156[li_0] = EMPTY_VALUE;
         }
      }
   }
   if (g_ibuf_172[2] < 0.0 && g_ibuf_172[1] > 0.0 && Volume[0] > 1.0 && !gi_176) {
      ls_28 = " " + Symbol() + " M" + Period() + ": Guard Signal for BUY";
      if (AlertMode > 0) Alert(ls_28);
      gi_176 = TRUE;
      gi_180 = FALSE;
   }
   if (g_ibuf_172[2] > 0.0 && g_ibuf_172[1] < 0.0 && Volume[0] > 1.0 && !gi_180) {
      ls_28 = " " + Symbol() + " M" + Period() + ": Guard Signal for SELL";
      if (AlertMode > 0) Alert(ls_28);
      gi_180 = TRUE;
      gi_176 = FALSE;
   }
   return (0);
}