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2025-05-13 20:19:58 +03:30
parent 8a329570a5
commit 4b91fff5d9
9 changed files with 875 additions and 820 deletions
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+//+------------------------------------------------------------------+
+//|                                                      VPattern.mq5 |
+//|                        Copyright 2023, MetaQuotes Software Corp. |
+//|                                             https://www.metaquotes.net/ |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2023, MetaQuotes Software Corp."
+#property link      "https://www.metaquotes.net/"
+#property version   "1.00"
+#property indicator_chart_window
+#property indicator_buffers 4
+#property indicator_plots   2
+#property indicator_label1  "V Pattern Top"
+#property indicator_type1   DRAW_ARROW
+#property indicator_color1  clrGreen
+#property indicator_width1  2
+#property indicator_label2  "V Pattern Bottom"
+#property indicator_type2   DRAW_ARROW
+#property indicator_color2  clrRed
+#property indicator_width2  2
+
+//--- Input parameters
+input int    LookbackPeriod=20;       // Bars to analyze for pattern
+input double MinDeclinePercent=2.0;   // Minimum decline percentage
+input double MinRisePercent=2.0;      // Minimum rise percentage
+input bool   ShowAlerts=true;         // Show alert messages
+input color  ArrowUpColor=clrGreen;   // Up arrow color
+input color  ArrowDownColor=clrRed;   // Down arrow color
+
+//--- Indicator buffers
+double VTopBuffer[];
+double VBottomBuffer[];
+double TempHighBuffer[];
+double TempLowBuffer[];
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function                         |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+//--- indicator buffers mapping
+   SetIndexBuffer(0, VTopBuffer, INDICATOR_DATA);
+   SetIndexBuffer(1, VBottomBuffer, INDICATOR_DATA);
+   SetIndexBuffer(2, TempHighBuffer, INDICATOR_CALCULATIONS);
+   SetIndexBuffer(3, TempLowBuffer, INDICATOR_CALCULATIONS);
+   
+//--- setting arrow codes
+   PlotIndexSetInteger(0, PLOT_ARROW, 233);  // Up arrow
+   PlotIndexSetInteger(1, PLOT_ARROW, 234);  // Down arrow
+   
+//--- setting arrow colors
+   PlotIndexSetInteger(0, PLOT_LINE_COLOR, ArrowUpColor);
+   PlotIndexSetInteger(1, PLOT_LINE_COLOR, ArrowDownColor);
+   
+//--- setting buffer values as EMPTY_VALUE
+   ArrayInitialize(VTopBuffer, EMPTY_VALUE);
+   ArrayInitialize(VBottomBuffer, EMPTY_VALUE);
+   
+//--- name for DataWindow and indicator subwindow label
+   IndicatorSetString(INDICATOR_SHORTNAME, "V-Pattern Detector ("+string(LookbackPeriod)+")");
+   
+   return(INIT_SUCCEEDED);
+  }
+//+------------------------------------------------------------------+
+//| Custom indicator iteration function                              |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
+  {
+//--- check for minimum bars required
+   if(rates_total < LookbackPeriod)
+      return(0);
+      
+//--- start calculation from bar determined by prev_calculated
+   int start;
+   if(prev_calculated == 0)
+      start = LookbackPeriod;
+   else
+      start = prev_calculated - 1;
+   
+//--- main calculation loop
+   for(int i=start; i<rates_total && !IsStopped(); i++)
+     {
+      // Reset buffers
+      VTopBuffer[i] = EMPTY_VALUE;
+      VBottomBuffer[i] = EMPTY_VALUE;
+      
+      // Find the lowest low in the lookback period
+      int lowestBar = iLowest(NULL, 0, MODE_LOW, LookbackPeriod, i-LookbackPeriod+1);
+      double lowestLow = low[lowestBar];
+      
+      // Find the highest high before the lowest low
+      int highBeforeLow = iHighest(NULL, 0, MODE_HIGH, lowestBar-(i-LookbackPeriod+1)+1, i-LookbackPeriod+1);
+      double highestBefore = high[highBeforeLow];
+      
+      // Find the highest high after the lowest low
+      int highAfterLow = iHighest(NULL, 0, MODE_HIGH, i-lowestBar, lowestBar+1);
+      double highestAfter = high[highAfterLow];
+      
+      // Calculate percentage moves
+      double declinePercent = (highestBefore - lowestLow) / highestBefore * 100;
+      double risePercent = (highestAfter - lowestLow) / lowestLow * 100;
+      
+      // Check if we have a V pattern
+      if(declinePercent >= MinDeclinePercent && risePercent >= MinRisePercent)
+        {
+         // Check if the low is in the middle third of the lookback period
+         int lowPosition = lowestBar - (i-LookbackPeriod+1);
+         if(lowPosition > LookbackPeriod/3 && lowPosition < 2*LookbackPeriod/3)
+           {
+            // Mark the pattern on chart
+            VTopBuffer[highBeforeLow] = high[highBeforeLow];
+            VBottomBuffer[lowestBar] = low[lowestBar];
+            VTopBuffer[highAfterLow] = high[highAfterLow];
+            
+            // Show alert if enabled
+            if(ShowAlerts && i == rates_total-1)
+              {
+               string alertText = StringFormat("V-Pattern detected! Decline: %.2f%%, Rise: %.2f%%",
+                                              declinePercent, risePercent);
+               Alert(alertText);
+               Comment(alertText);
+              }
+           }
+        }
+     }
+   
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+