price_speedometer/Twits Price speedometer.mq5

#property link "https://twits.pl/"
#property copyright "© 2026 Tomasz Wyrzykiewicz, Twits. All rights reserved."
#property version "1.00"
#property description "Free version"

#include "price_speedometer.mqh"

const int ticks_capacity = 1048576;
input int period_in_ticks = 10000;          // Period in ticks
input long period_in_milliseconds = 60000l; // Period in milliseconds
Price_speedometer price_speedometer(ticks_capacity, period_in_ticks,
                                    period_in_milliseconds);

int OnInit() {
  if (period_in_ticks < 10 || period_in_ticks > 10000) {
    Alert("Invalid value of period in ticks!");
    ExpertRemove();
  }
  if (period_in_milliseconds < 1000l || period_in_milliseconds > 100000l) {
    Alert("Invalid value of period in milliseconds!");
    ExpertRemove();
  }
  return INIT_SUCCEEDED;
}

void OnDeinit(const int reason) { return; }

void OnTick() {
  const string symbol = _Symbol;
  MqlTick tick;
  if (!SymbolInfoTick(symbol, tick)) {
    Print("Cannot get tick (last error: ", GetLastError(), ")!");
    return;
  }
  price_speedometer.add_tick(tick);
  price_speedometer.calculate_price_speeds();
  price_speedometer.calculate_percents();
  const string comment = price_speedometer.get_comment();
  Comment(comment);
  return;
}