Conversion of “AMA filtered” from MT5
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Goodnight. Would anyone be willing to convert the following code please?//——————————————————————#property copyright “© mladen, 2018”#property link “mladenfx@gmail.com”#property description “AMA filtered”//+——————————————————————#property indicator_chart_window#property indicator_buffers 3#property indicator_plots 1#property indicator_label1 “AMA”#property indicator_type1 DRAW_COLOR_LINE#property indicator_color1 clrDarkGray,clrMediumSeaGreen,clrOrangeRed#property indicator_width1 2//////input int inpPeriod = 17; // Periodinput int inpFastPeriod = 3; // Fast end periodinput int inpSlowPeriod = 34; // Slow end periodinput double inpFilter = 5; // Filter size (<=0 for no filter)input ENUM_APPLIED_PRICE inpPrice = PRICE_CLOSE; // Price////—////Forex-Station copy & paste code; Button code start 11input string button_note1 = “——————————“;input int btn_Subwindow = 0; // What window to put the button oninput ENUM_BASE_CORNER btn_corner = CORNER_LEFT_UPPER; // button corner on chart for anchoringinput string btn_text = “AMA”; // a button nameinput string btn_Font = “Arial”; // button font nameinput int btn_FontSize = 9; // button font sizeinput color btn_text_ON_color = clrLime; // ON color when the button is turned oninput color btn_text_OFF_color = clrRed; // OFF color when the button is turned offinput color btn_background_color = clrDimGray; // background color of the buttoninput color btn_border_color = clrBlack; // border color the buttoninput int button_x = 20; // x coordinate of the buttoninput int button_y = 25; // y coordinate of the buttoninput int btn_Width = 80; // button widthinput int btn_Height = 20; // button heightinput string soundBT = “tick.wav”; // sound file when the button is pressedinput string UniqueButtonID = “AMAfiltered”; // Unique ID for each buttoninput string button_note2 = “——————————“;bool show_data = true, recalc = true;string IndicatorName, IndicatorObjPrefix, buttonId;//Forex-Station copy & paste code; Button code end 11double val[],valc[],ama[],g_fastEnd,g_slowEnd; int g_hlPeriod;//+——————————————————————+//Forex-Station copy & paste code; Button code start 12string GenerateIndicatorName(const string target){string name = target;int try = 2;while(ChartWindowFind(0, name) != -1){name = target + ” #” + IntegerToString(try++);}return name;}//+——————————————————————+int OnInit(void){IndicatorName = GenerateIndicatorName(btn_text);IndicatorObjPrefix = “__” + IndicatorName + “__”;IndicatorSetString(INDICATOR_SHORTNAME, IndicatorName);IndicatorSetInteger(INDICATOR_DIGITS, _Digits);double ForexVal;if(GlobalVariableGet(IndicatorName + “_visibility”, ForexVal))show_data = ForexVal != 0;ChartSetInteger(ChartID(), CHART_EVENT_MOUSE_MOVE, 1);buttonId = IndicatorObjPrefix + UniqueButtonID + btn_text;createButton(buttonId, btn_text, btn_Width, btn_Height, btn_Font, btn_FontSize, btn_background_color, btn_border_color, btn_text_ON_color);ObjectSetInteger(ChartID(), buttonId, OBJPROP_YDISTANCE, button_y);ObjectSetInteger(ChartID(), buttonId, OBJPROP_XDISTANCE, button_x);Init2();return(INIT_SUCCEEDED);}//+——————————————————————+void OnDeinit(const int reason) {ObjectsDeleteAll(ChartID(), IndicatorObjPrefix, -1, -1);}//+——————————————————————+void createButton(string buttonID, string buttonText, int width, int height, string font, int fontSize, color bgColor, color borderColor, color txtColor){ObjectDelete (ChartID(), buttonID);ObjectCreate (ChartID(), buttonID, OBJ_BUTTON, btn_Subwindow, 0, 0);ObjectSetInteger(ChartID(), buttonID, OBJPROP_COLOR, txtColor);ObjectSetInteger(ChartID(), buttonID, OBJPROP_BGCOLOR, bgColor);ObjectSetInteger(ChartID(), buttonID, OBJPROP_BORDER_COLOR, borderColor);ObjectSetInteger(ChartID(), buttonID, OBJPROP_BORDER_TYPE, BORDER_RAISED);ObjectSetInteger(ChartID(), buttonID, OBJPROP_XSIZE, width);ObjectSetInteger(ChartID(), buttonID, OBJPROP_YSIZE, height);ObjectSetString (ChartID(), buttonID, OBJPROP_FONT, font);ObjectSetString (ChartID(), buttonID, OBJPROP_TEXT, buttonText);ObjectSetInteger(ChartID(), buttonID, OBJPROP_FONTSIZE, fontSize);ObjectSetInteger(ChartID(), buttonID, OBJPROP_SELECTABLE, 0);ObjectSetInteger(ChartID(), buttonID, OBJPROP_CORNER, btn_corner);ObjectSetInteger(ChartID(), buttonID, OBJPROP_HIDDEN, 1);ObjectSetInteger(ChartID(), buttonID, OBJPROP_XDISTANCE, 9999);ObjectSetInteger(ChartID(), buttonID, OBJPROP_YDISTANCE, 9999);}//+——————————————————————————————————————+void handleButtonClicks(){if(ObjectGetInteger(ChartID(), buttonId, OBJPROP_STATE)){ObjectSetInteger(ChartID(), buttonId, OBJPROP_STATE, false);show_data = !show_data;GlobalVariableSet(IndicatorName + “_visibility”, show_data ? 1.0 : 0.0);recalc = true;}}//+——————————————————————+void OnChartEvent(const int id,const long &lparam,const double &dparam,const string &sparam){handleButtonClicks();bool ForexStation = ObjectGetInteger(ChartID(),sparam,OBJPROP_TYPE);if (id==CHARTEVENT_OBJECT_CLICK && ForexStation==OBJ_BUTTON){if (soundBT!=””) PlaySound(soundBT);}if (show_data){ObjectSetInteger(ChartID(),buttonId,OBJPROP_COLOR,btn_text_ON_color);PlotIndexSetInteger(0, PLOT_DRAW_TYPE, DRAW_COLOR_LINE);}else{ObjectSetInteger(ChartID(),buttonId,OBJPROP_COLOR,btn_text_OFF_color);PlotIndexSetInteger(0, PLOT_DRAW_TYPE, DRAW_NONE);}}//+——————————————————————+//Forex-Station copy & paste code; Button code end 12//——————————————————————// Custom indicator initialization function//——————————————————————//////int Init2(){////— indicator buffers mapping//SetIndexBuffer(0,val ,INDICATOR_DATA);SetIndexBuffer(1,valc,INDICATOR_COLOR_INDEX);SetIndexBuffer(2,ama ,INDICATOR_CALCULATIONS);g_fastEnd = 2.0/(inpFastPeriod+1.0);g_slowEnd = 2.0/(inpSlowPeriod+1.0);g_hlPeriod = inpPeriod+1;iFilter.init(inpPeriod,inpFilter);return (INIT_SUCCEEDED);}//——————————————————————// Custom indicator iteration function//——————————————————————////—//#define _setPrice(_priceType,_target,_index) \{ \switch(_priceType) \{ \case PRICE_CLOSE: _target = close[_index]; break; \case PRICE_OPEN: _target = open[_index]; break; \case PRICE_HIGH: _target = high[_index]; break; \case PRICE_LOW: _target = low[_index]; break; \case PRICE_MEDIAN: _target = (high[_index]+low[_index])/2.0; break; \case PRICE_TYPICAL: _target = (high[_index]+low[_index]+close[_index])/3.0; break; \case PRICE_WEIGHTED: _target = (high[_index]+low[_index]+close[_index]+close[_index])/4.0; break; \default : _target = 0; \}}////—//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[]){static int prev_i=-1;static double prev_max,prev_min;//////int i= prev_calculated-1; if (i<0) i=0; for (; i<rates_total && !_StopFlag; i++){double _price; _setPrice(inpPrice,_price,i);if (prev_i!=i){prev_i = i;int start = i-g_hlPeriod+1; if (start<0) start=0;prev_max = high[ArrayMaximum(high,start,g_hlPeriod-1)];prev_min = low [ArrayMinimum(low ,start,g_hlPeriod-1)];}double max = (high[i] > prev_max) ? high[i] : prev_max;double min = (low[i] < prev_min) ? low[i] : prev_min;////—//double mltp = (max!=min) ? ((_price-min)-(max-_price))/(max-min) : 1; if (mltp<0) mltp *= -1;double ssc = mltp * ( g_fastEnd-g_slowEnd) + g_slowEnd;////—//ama[i] = (i>0) ? ama[i-1]+(ssc*ssc)*(_price-ama[i-1]) : _price;val[i] = iFilter.calculate(ama[i],i);valc[i]=(i>0) ?(val[i]>val[i-1]) ? 1 :(val[i]<val[i-1]) ? 2 : valc[i-1]: 0;}return(i);}//——————————————————————// Custom function(s)//——————————————————————////—//class CFilter{private :int m_period;int m_arraySize;double m_filter;struct sFilterArrayStruct{double value;double change;double power;double summc;double summp;};sFilterArrayStruct m_array[];public :CFilter() { init(1,0); }~CFilter() { ArrayFree(m_array); }/////////bool init (int period, double filter){m_period = (period>1) ? period : 1;m_filter = (filter>=0) ? filter : 0;m_arraySize = m_period + 32;if (ArrayResize(m_array,m_arraySize)!=m_arraySize) return(false);return(true);}double calculate(double value, int i){int _indC = (i )%m_arraySize;int _indP = (i-1)%m_arraySize;//////m_array[_indC].value = value; double _change = (i>0) ? m_array[_indC].value-m_array[_indP].value : 0;m_array[_indC].change = (_change>0) ? _change : – _change;if (i>m_period){int _indF = (i-m_period)%m_arraySize;#define _power(_val) ((_val)*(_val))m_array[_indC].summc = m_array[_indP].summc +m_array[_indC].change-m_array[_indF].change;m_array[_indC].power = _power(m_array[_indC].change-m_array[_indC].summc/(double)m_period);m_array[_indC].summp = m_array[_indP].summp+m_array[_indC].power-m_array[_indF].power;}else{m_array[_indC].summc =m_array[_indC].summp = 0;for(int k=0; k<m_period && i>=k; k++) m_array[_indC].summc += m_array[_indC-k].change;m_array[_indC].power = _power(m_array[_indC].change-m_array[_indC].summc/(double)m_period);for(int k=0; k<m_period && i>=k; k++) m_array[_indC].summp += m_array[_indC-k].power;#undef _power}if (i>0 && m_filter>0 && m_array[_indC].change<m_filter*MathSqrt(m_array[_indC].summp/(double)m_period)) m_array[_indC].value=m_array[_indP].value;return (m_array[_indC].value);}};CFilter iFilter;//——————————————————————
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