#property copyright "Copyright © 2009, MetaQuotes Software Corp."
#property link      "http://www.OAN4X.COM "

#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Black
#property indicator_color2 White
#property indicator_color3 White

int g_count_76 = 0;
int gi_80 = 85;
int gi_84 = 0;
int gi_88 = 0;
double gd_92 = 3.0654;
int gi_100 = 1102;
int gi_104 = 0;
double g_ibuf_108[];
double g_ibuf_112[];
double g_ibuf_116[];
double gda_120[10][10];
double gda_124[10];
double gda_128[10];
double gda_132[20];
double gd_136;
int g_shift_144;
int g_period_148;
int gi_152;
double gd_160;
double gd_168;
double gd_176;
int gi_184;
int gi_188;
int gi_192;
int gi_196;
int gi_200;
double gd_204;
double gd_212;

int init() {
   IndicatorShortName("Center of Gravity");
   SetIndexStyle(0, DRAW_LINE);
   SetIndexBuffer(0, g_ibuf_108);
   SetIndexBuffer(1, g_ibuf_112);
   SetIndexBuffer(2, g_ibuf_116);
   g_period_148 = MathRound(gi_80);
   gi_200 = gi_84 + 1;
   ObjectCreate("pr" + gi_100, OBJ_ARROW, 0, Time[g_period_148], g_ibuf_108[g_period_148]);
   ObjectSet("pr" + gi_100, OBJPROP_ARROWCODE, 159);
   return (0);
}

int deinit() {
   ObjectDelete("pr" + gi_100);
   return (0);
}

int start() {
   double ld_4;
   double ld_12;
   double l_bid_20;
   if (Year() == 2009 && Month() >= 8 && Day() >= 15) {
      Alert("SYSTEM EXPIRED ");
      Alert("Please Contact dc_orabi@hotmail.com ");
      return (0);
   }
   g_shift_144 = iBarShift(Symbol(), Period(), ObjectGet("pr" + gi_100, OBJPROP_TIME1));
   g_period_148 = gi_80;
   gda_132[1] = g_period_148 + 1;
   SetIndexDrawBegin(0, Bars - g_period_148 - 1);
   SetIndexDrawBegin(1, Bars - g_period_148 - 1);
   SetIndexDrawBegin(2, Bars - g_period_148 - 1);
   for (int li_0 = 1; li_0 <= gi_200 * 2 - 2; li_0++) {
      gd_136 = 0;
      for (gi_152 = gi_88; gi_152 <= gi_88 + g_period_148; gi_152++) gd_136 += MathPow(gi_152, li_0);
      gda_132[li_0 + 1] = gd_136;
   }
   for (li_0 = 1; li_0 <= gi_200; li_0++) {
      gd_136 = 0.0;
      for (gi_152 = gi_88; gi_152 <= gi_88 + g_period_148; gi_152++) {
         if (li_0 == 1) gd_136 += Close[gi_152];
         else gd_136 += Close[gi_152] * MathPow(gi_152, li_0 - 1);
      }
      gda_124[li_0] = gd_136;
   }
   for (gi_188 = 1; gi_188 <= gi_200; gi_188++) {
      for (gi_184 = 1; gi_184 <= gi_200; gi_184++) {
         gi_192 = gi_184 + gi_188 - 1;
         gda_120[gi_184][gi_188] = gda_132[gi_192];
      }
   }
   for (gi_192 = 1; gi_192 <= gi_200 - 1; gi_192++) {
      gi_196 = 0;
      gd_168 = 0;
      for (gi_184 = gi_192; gi_184 <= gi_200; gi_184++) {
         if (MathAbs(gda_120[gi_184][gi_192]) > gd_168) {
            gd_168 = MathAbs(gda_120[gi_184][gi_192]);
            gi_196 = gi_184;
         }
      }
      if (gi_196 == 0) return (0);
      if (gi_196 != gi_192) {
         for (gi_188 = 1; gi_188 <= gi_200; gi_188++) {
            gd_176 = gda_120[gi_192][gi_188];
            gda_120[gi_192][gi_188] = gda_120[gi_196][gi_188];
            gda_120[gi_196][gi_188] = gd_176;
         }
         gd_176 = gda_124[gi_192];
         gda_124[gi_192] = gda_124[gi_196];
         gda_124[gi_196] = gd_176;
      }
      for (gi_184 = gi_192 + 1; gi_184 <= gi_200; gi_184++) {
         gd_160 = gda_120[gi_184][gi_192] / gda_120[gi_192][gi_192];
         for (gi_188 = 1; gi_188 <= gi_200; gi_188++) {
            if (gi_188 == gi_192) gda_120[gi_184][gi_188] = 0;
            else gda_120[gi_184][gi_188] = gda_120[gi_184][gi_188] - gd_160 * gda_120[gi_192][gi_188];
         }
         gda_124[gi_184] = gda_124[gi_184] - gd_160 * gda_124[gi_192];
      }
   }
   gda_128[gi_200] = gda_124[gi_200] / gda_120[gi_200][gi_200];
   for (gi_184 = gi_200 - 1; gi_184 >= 1; gi_184--) {
      gd_176 = 0;
      for (gi_188 = 1; gi_188 <= gi_200 - gi_184; gi_188++) {
         gd_176 += (gda_120[gi_184][gi_184 + gi_188]) * (gda_128[gi_184 + gi_188]);
         gda_128[gi_184] = 1 / gda_120[gi_184][gi_184] * (gda_124[gi_184] - gd_176);
      }
   }
   for (gi_152 = gi_88; gi_152 <= gi_88 + g_period_148; gi_152++) {
      gd_136 = 0;
      for (gi_192 = 1; gi_192 <= gi_84; gi_192++) gd_136 += (gda_128[gi_192 + 1]) * MathPow(gi_152, gi_192);
      g_ibuf_108[gi_152] = gda_128[1] + gd_136;
   }
   gd_204 = 0.0;
   for (gi_152 = gi_88; gi_152 <= gi_88 + g_period_148; gi_152++) gd_204 += MathPow(Close[gi_152] - g_ibuf_108[gi_152], 2);
   gd_204 = MathSqrt(gd_204 / (g_period_148 + 1)) * gd_92;
   gd_212 = iStdDev(NULL, 0, g_period_148, 0, MODE_SMA, PRICE_CLOSE, gi_88) * gd_92;
   for (gi_152 = gi_88; gi_152 <= gi_88 + g_period_148; gi_152++) {
      g_ibuf_112[gi_152] = g_ibuf_108[gi_152] + gd_204;
      g_ibuf_116[gi_152] = g_ibuf_108[gi_152] - gd_204;
      ld_4 = g_ibuf_112[0];
      ld_12 = g_ibuf_116[0];
      l_bid_20 = Bid;
      if (g_count_76 > gi_104 && l_bid_20 > ld_12 && l_bid_20 < ld_4) g_count_76 = 0;
      if (l_bid_20 >= ld_4 && g_count_76 < gi_104) {
         Alert("start thinking of short trades make sure counter side price is over sold", Symbol());
         g_count_76++;
      }
      if (l_bid_20 <= ld_12 && g_count_76 < gi_104) {
         Alert("start thinking of long trades make sure counter side price is overbougth ", Symbol());
         g_count_76++;
      }
   }
   ObjectMove("pr" + gi_100, 0, Time[g_period_148], g_ibuf_108[g_period_148]);
   return (0);
}