Chiến lược theo dõi xu hướng động đa chỉ báo dựa trên EMA và SMA

/*backtest
start: 2019-12-23 08:00:00
end: 2024-12-25 08:00:00
period: 1d
basePeriod: 1d
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=6
strategy("Buy Sell Pivot Point", overlay=true)

// Input Parameters
prd = input.int(defval=2, title="Periodo Pivot Point", minval=1, maxval=50)
Factor = input.float(defval=3, title="Fator ATR", minval=1, step=0.1)
Pd = input.int(defval=10, title="Periodo ATR", minval=1)
showpivot = input.bool(defval=false, title="Mostrar Pivot Points")
showlabel = input.bool(defval=true, title="Mostrar Buy/Sell Labels")
showcl = input.bool(defval=false, title="Mostrar PP Center Line")
showsr = input.bool(defval=false, title="Mostrar Support/Resistance")
sma1_length = input.int(defval=8, title="SMA 1")
sma2_length = input.int(defval=21, title="SMA 2")
timeframe_fix = input.timeframe("D", title="Timeframe Fixo")

// Request data from the fixed timeframe
fix_close = request.security(syminfo.tickerid, timeframe_fix, close)
fix_high = request.security(syminfo.tickerid, timeframe_fix, high)
fix_low = request.security(syminfo.tickerid, timeframe_fix, low)
fix_ph = request.security(syminfo.tickerid, timeframe_fix, ta.pivothigh(prd, prd))
fix_pl = request.security(syminfo.tickerid, timeframe_fix, ta.pivotlow(prd, prd))
fix_atr = request.security(syminfo.tickerid, timeframe_fix, ta.atr(Pd))

// Convert Pivot High/Low to valid boolean for conditions
ph_cond = not na(fix_ph)
pl_cond = not na(fix_pl)

// Draw Pivot Points
plotshape(ph_cond and showpivot, title="Pivot High", text="H", style=shape.labeldown, color=color.red, textcolor=color.red, location=location.abovebar, offset=-prd)
plotshape(pl_cond and showpivot, title="Pivot Low", text="L", style=shape.labelup, color=color.lime, textcolor=color.lime, location=location.belowbar, offset=-prd)

// Calculate the Center line using pivot points
var float center = na
lastpp = ph_cond ? fix_ph : pl_cond ? fix_pl : na
if not na(lastpp)
    center := na(center) ? lastpp : (center * 2 + lastpp) / 3

// Upper/Lower bands calculation
Up = center - (Factor * fix_atr)
Dn = center + (Factor * fix_atr)

// Get the trend
var float TUp = na
var float TDown = na
var int Trend = 0
TUp := na(TUp[1]) ? Up : fix_close[1] > TUp[1] ? math.max(Up, TUp[1]) : Up
TDown := na(TDown[1]) ? Dn : fix_close[1] < TDown[1] ? math.min(Dn, TDown[1]) : Dn
Trend := fix_close > TDown[1] ? 1 : fix_close < TUp[1] ? -1 : nz(Trend[1], 1)
Trailingsl = Trend == 1 ? TUp : TDown

// Plot the trend
linecolor = Trend == 1 ? color.lime : Trend == -1 ? color.red : na
plot(Trailingsl, color=linecolor, linewidth=2, title="PP SuperTrend")

// Plot Center Line
plot(showcl ? center : na, color=showcl ? (center < fix_close ? color.blue : color.red) : na, title="Center Line")

// Calculate Base EMAs
ema_8 = ta.ema(fix_close, 8)
ema_21 = ta.ema(fix_close, 21)

// Calculate SMAs based on EMAs
sma1 = ta.sma(ema_8, sma1_length)
sma2 = ta.sma(ema_21, sma2_length)

// Plot SMAs
plot(sma1, color=#ffff00, linewidth=2, title="SMA 1 (based on EMA 8)")
plot(sma2, color=#aa00ff, linewidth=2, title="SMA 2 (based on EMA 21)")

// Initialize variables to track pivot points
var float last_pivot_time = na

// Update the pivot time when a new pivot is detected
if (ph_cond)
    last_pivot_time := bar_index
if (pl_cond)
    last_pivot_time := bar_index

// Calculate the crossover/crossunder signals
buy_signal = ta.crossover(sma1, sma2)  // SMA 8 crossing SMA 21 upwards
sell_signal = ta.crossunder(sma1, sma2)  // SMA 8 crossing SMA 21 downwards

// Ensure signal is only valid if it happens within 3 candles of a pivot point
valid_buy_signal = buy_signal and (bar_index - last_pivot_time <= 3)
valid_sell_signal = sell_signal and (bar_index - last_pivot_time <= 3)

// Plot Buy/Sell Signals
plotshape(valid_buy_signal and showlabel, title="Buy Signal", text="BUY", style=shape.labelup, color=color.lime, textcolor=color.black, location=location.belowbar)
plotshape(valid_sell_signal and showlabel, title="Sell Signal", text="SELL", style=shape.labeldown, color=color.red, textcolor=color.white, location=location.abovebar)

// Get S/R levels using Pivot Points
var float resistance = na
var float support = na
support := pl_cond ? fix_pl : support[1]
resistance := ph_cond ? fix_ph : resistance[1]

// Plot S/R levels
plot(showsr and not na(support) ? support : na, color=showsr ? color.lime : na, style=plot.style_circles, offset=-prd)
plot(showsr and not na(resistance) ? resistance : na, color=showsr ? color.red : na, style=plot.style_circles, offset=-prd)

// Execute trades based on valid signals
if valid_buy_signal
    strategy.entry("Buy", strategy.long)
if valid_sell_signal
    strategy.entry("Sell", strategy.short)

// Alerts
alertcondition(valid_buy_signal, title="Buy Signal", message="Buy Signal Detected")
alertcondition(valid_sell_signal, title="Sell Signal", message="Sell Signal Detected")
alertcondition(Trend != Trend[1], title="Trend Changed", message="Trend Changed")