EMA ডায়নামিক ফিল্টারিং এবং ATR ঝুঁকি ব্যবস্থাপনা সিস্টেমের সাথে মিলিত তিন-লাইন ব্রেকআউট ট্রেন্ড-অনুসরণ কৌশল

/*backtest
start: 2025-01-18 00:00:00
end: 2025-02-17 00:00:00
period: 2h
basePeriod: 2h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

// Copyright ...
// Based on the TMA Overlay by Arty, converted to a simple strategy example.
// Pine Script v5

//@version=5
strategy(title='3 Line Strike [TTF] - Strategy with ATR and EMA Filter',
     shorttitle='3LS Strategy [TTF]',
     overlay=true,
     initial_capital=100000,
     default_qty_type=strategy.percent_of_equity,
     default_qty_value=100,
     pyramiding=0)

// -----------------------------------------------------------------------------
//                               INPUTS
// -----------------------------------------------------------------------------

// ATR and EMA Inputs
atrLength = input.int(title='ATR Length', defval=14, group='ATR & EMA')
emaLength = input.int(title='EMA Length', defval=200, group='ATR & EMA')

// ### 3 Line Strike
showBear3LS = input.bool(title='Show Bearish 3 Line Strike', defval=true, group='3 Line Strike',
     tooltip="Bearish 3 Line Strike (3LS-Bear) = 3 zelené sviečky, potom veľká červená sviečka (engulfing).")
showBull3LS = input.bool(title='Show Bullish 3 Line Strike', defval=true, group='3 Line Strike',
     tooltip="Bullish 3 Line Strike (3LS-Bull) = 3 červené sviečky, potom veľká zelená sviečka (engulfing).")

// -----------------------------------------------------------------------------
//                          CALCULATIONS
// -----------------------------------------------------------------------------

// Calculate ATR
atr = ta.atr(atrLength)

// Calculate EMA
ema = ta.ema(close, emaLength)

// Helper Functions
getCandleColorIndex(barIndex) =>
    int ret = na
    if (close[barIndex] > open[barIndex])
        ret := 1
    else if (close[barIndex] < open[barIndex])
        ret := -1
    else
        ret := 0
    ret

isEngulfing(checkBearish) =>
    sizePrevCandle = close[1] - open[1]
    sizeCurrentCandle = close - open
    isCurrentLargerThanPrevious = math.abs(sizeCurrentCandle) > math.abs(sizePrevCandle)

    if checkBearish
        isGreenToRed = (getCandleColorIndex(0) < 0) and (getCandleColorIndex(1) > 0)
        isCurrentLargerThanPrevious and isGreenToRed
    else
        isRedToGreen = (getCandleColorIndex(0) > 0) and (getCandleColorIndex(1) < 0)
        isCurrentLargerThanPrevious and isRedToGreen

isBearishEngulfing() => isEngulfing(true)
isBullishEngulfing() => isEngulfing(false)

is3LSBear() =>
    is3LineSetup = (getCandleColorIndex(1) > 0) and (getCandleColorIndex(2) > 0) and (getCandleColorIndex(3) > 0)
    is3LineSetup and isBearishEngulfing()

is3LSBull() =>
    is3LineSetup = (getCandleColorIndex(1) < 0) and (getCandleColorIndex(2) < 0) and (getCandleColorIndex(3) < 0)
    is3LineSetup and isBullishEngulfing()

// Signals
is3LSBearSig = is3LSBear() and close < ema
is3LSBullSig = is3LSBull() and close > ema

// Take Profit and Stop Loss
longTP = close + 2 * atr
longSL = close - 1 * atr
shortTP = close - 2 * atr
shortSL = close + 1 * atr

// -----------------------------------------------------------------------------
//                          STRATEGY ENTRY PRÍKAZY
// -----------------------------------------------------------------------------
if (showBull3LS and is3LSBullSig)
    strategy.entry("3LS_Bull", strategy.long, comment="3LS Bullish")
    strategy.exit("Exit Bull", from_entry="3LS_Bull", limit=longTP, stop=longSL)

if (showBear3LS and is3LSBearSig)
    strategy.entry("3LS_Bear", strategy.short, comment="3LS Bearish")
    strategy.exit("Exit Bear", from_entry="3LS_Bear", limit=shortTP, stop=shortSL)