Abdoli's Heikin Ashi Smoothed Buy & Sell Strategy Rev.4.pine

Script Name: Abdoli's Heikin Ashi Smoothed Buy & Sell Strategy Rev.4
Author: MasAbdoli
Description: This simple strategy is just based of a single indicator, my dear Heikin Ashi Smoothed!
Just try and enjoy it ;)
PineScript code:

Pine Script™ strategy
Abdoli's Heikin Ashi Smoothed Buy & Sell Strategy Rev.4
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//Masoud Abdoli
//Heikin Ashi Smoothed Buy & Sell Strategy Rev.4
//Date: 01-Oct-2021
//@version=4
strategy(title="Abdoli's Heikin Ashi Smoothed Buy & Sell Strategy Rev.4", shorttitle="Heikin-Ashi Smoothed Rev.4", overlay=true,
 initial_capital=1000, default_qty_type=strategy.percent_of_equity, default_qty_value=100)
MaPeriod = input (title="Moving Average Period?", type=input.integer, defval=65, minval=5, maxval=100, step=5)
maOpen  = ema(open , MaPeriod)
maHigh  = ema(high , MaPeriod)
maLow   = ema(low  , MaPeriod)
maClose = ema(close, MaPeriod)
haClose = (maOpen+maHigh+maLow+maClose)/4
haOpen = 0.0
haOpen:= na(haOpen[1]) ? (maOpen[1]+maClose[1])/2 : (haOpen[1]+haClose[1])/2
haHigh = max(maHigh, max(haClose, haOpen))
haLow  = min(maLow , max(haClose, haOpen))
plotcandle(haOpen, haHigh, haLow, haClose, title="heikin-Ashi smoothed", color=haOpen>haClose ? color.orange : color.blue)
B0 = haClose    - haOpen
B1 = haClose[1] - haOpen[1]
B2 = haClose[2] - haOpen[2]
BuyCondition = B0 > 0.0 and B1 > 0.0 and B2 > 0.0 and haClose > haClose[1] and haClose[1] > haClose[2]
SellCondition= B0 < 0.0 and B1 < 0.0 and B2 < 0.0 and haClose < haClose[1] and haClose[1] < haClose[2]
last_signal = 0
Buy_final  = BuyCondition  and (nz(last_signal[1]) == 0 or nz(last_signal[1]) ==-1)
Sell_final = SellCondition and (nz(last_signal[1]) == 0 or nz(last_signal[1]) == 1)
last_signal := Buy_final ? 1 : Sell_final ? -1 : last_signal[1]
plotshape(Buy_final , style=shape.labelup  , location=location.belowbar, color=color.blue, title="Buy label" , text="BUY" , textcolor=color.white)
plotshape(Sell_final, style=shape.labeldown, location=location.abovebar, color=color.red , title="Sell label", text="SELL", textcolor=color.white)
strategy.entry("Buy", strategy.long, when=Buy_final)
strategy.close("Buy", when=Sell_final)
Expand (39 lines)