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Strategy · Pine Script v5 · On the chart

饥饿者~01

by wynnforthework· code credited to liaodinghai

This strategy overlays execution signals directly on the main price chart.

View on GitHub

GitHub stars2on the repository
Pine versionv5runs as is
Lines of code377
Settings28inputs
LicenceNone statedfile: MPL-2.0
Last update1 year ago7 Oct 2025

Add It to Your TradingView Chart

  1. 1Copy the scriptPress Copy script above, or the copy button on the code below.
  2. 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
  3. 3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
  4. 4Add it to the chartPress Add to chart. The trades and results appear in the Strategy Tester tab; adjust the settings with the gear icon.

Source Code

377 lines of Pine Script v5 from 策略/高收益，嘿嘿！.txt, published under MPL-2.0 (file header). Keep the author's credit and licence lines when you reuse it.

高收益，嘿嘿！.txt 
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © liaodinghai


//@version=5
strategy(title='饥饿者~01', overlay=true, 
     pyramiding=0, default_qty_type=strategy.cash, 
     default_qty_value=1, initial_capital=100, 
     currency=currency.USD, commission_value=0.05, 
     commission_type=strategy.commission.percent, 
     process_orders_on_close=true)
//对上面这段话的解释：策略标题（名字）“”，显示在图表（主图），pyramiding=0只能在同一方向上开单，......


//-------------- fetch user inputs ------------------
gain = input.float(title="Kalman Gain:", defval=100.0, minval=1, maxval=10000.0, step=1)
src = input(defval=close, title='Source:')

stopPercentBase = input.float(title='Beginning Approach(%)', defval=5.0, minval=0.1, maxval=30.0, step=0.1)
stopPercentMin = input.float(title='Final Approach(%)', defval=1.0, minval=0.1, maxval=30.0, step=0.1)
downStep = input.float(title='Approach Decrease Step', defval=0.001, minval=0.0, maxval = 5, step=0.001)
//stopPercentDeviation = input.float(title="Approach Deviation", defval=1.0, minval=0.1, maxval = 5.0, step=0.1)

baseOrderQty = input.float(title="Base Order Quantity", defval=100.0, minval=0.001)
maxOrderCount = input.int(title="Max Safe Order Attemp", defval=4, minval=1)
priceDeviation = input.float(title="Safe Order Deviation", defval=3, minval=1.0, step=0.1)
profitDeviation = input.float(title="Profit Deviation", defval=1.0, minval=1.0, maxval=10, step=0.1)
maxTakeProfit = input.float(title="Max Take Profit(%)", defval=25.0, maxval=100, step=0.1)
maxOrderQty = input.float(title="Max Order Quantity", defval=10000.0, minval=0.01)

baseTP1 = input.float(title="TP1(%)", defval=1.0, minval=0.0, maxval=100.0, step=0.1, inline="0")
qt1     = input.int(title="QT1(%):", defval=40, minval=1, maxval=100, step=5, inline="0")

baseTP2 = input.float(title="TP2(%)", defval=3.0, minval=0.0, maxval=100.0, step=0.1, inline="1")
qt2     = input.int(title="QT2(%):", defval=30, minval=1, maxval=100, step=5, inline="1")

baseTP3 = input.float(title="TP3(%)", defval=5.0, minval=0.0, maxval=100.0, step=0.1, inline="2")
qt3     = input.int(title="QT3(%):", defval=30, minval=1, maxval=100, step=5, inline="2")

initialStopLoss = input.float(title="Stop Loss(%)", defval=0.0, minval=0.0, maxval=100.0, step=0.1)

longEntry = input.bool(defval=true, title= 'Long Entry', inline="3")
shortEntry = input.bool(defval=true, title='Short Entry', inline="3")

useSafeStop2 = input.bool(defval = true, title="Safe Stop After TP2", inline="6")
useSafeStop1 = input.bool(defval = false, title="Safe Stop After TP1", inline="6")

//---------- backtest range setup ------------
fromDay   = input.int(defval = 1, title = "From Date:", minval = 1, maxval = 31, inline="4")
fromMonth = input.int(defval = 1, title = "/", minval = 1, maxval = 12, inline="4")
fromYear  = input.int(defval = 2021, title = "/", minval = 2010, inline="4")
toDay     = input.int(defval = 30, title = "To__ Date:", minval = 1, maxval = 31, inline="5")
toMonth   = input.int(defval = 12, title = "/", minval = 1, maxval = 12, inline="5")
toYear    = input.int(defval = 2022, title = "/", minval = 2010, inline="5")

//------------ time interval setup -----------
start     = timestamp(fromYear, fromMonth, fromDay, 00, 00)  // backtest start window
finish    = timestamp(toYear, toMonth, toDay, 23, 59)        // backtest finish window
window()  => time >= start and time <= finish ? true : false // create function "within window of time"


//------- define the order comments ------
enterLongComment = ""
exitLongComment = ""

enterShortComment = ""
exitShortComment = ""

longTPSL = ""
longTP = ""
longSL = ""

shortTPSL = ""
shortTP = ""
shortSL = ""

//--------- Define global variables -----------
var bool long = true
var bool stoppedOutLong = false
var bool stoppedOutShort = false
var float kf = 0.0
var float velo = 0.0

var float orderQty = baseOrderQty
var float stopLoss = initialStopLoss
var bool isProfit = false
var int barindex = 1
var int winCounter = 0
var int winCounterBuffer = 0
var int failCounter = 0

var float tp1 = baseTP1
var float tp2 = baseTP2
var float tp3 = baseTP3

var bool isTakeTP1 = false
var bool isTakeTP2 = false  
var bool isTakeTP3 = false  
var bool isLastProfit = true

var float stopPercentMax = stopPercentBase
var float stopPercent = stopPercentBase
var float stopLine = 0.0

var labelColor = color.blue


//------ kalman filter calculation --------
dk = src - nz(kf[1], src)
smooth = nz(kf[1], src) + dk * math.sqrt(gain / 10000 * 2)
velo := nz(velo[1], 0) + gain / 10000 * dk
kf := smooth + velo


//--------- calculate the loft stopLoss line ---------
//stopPercentMax := isLastProfit ? stopPercentBase : (stopPercentBase * stopPercentDeviation)

if long == true
    stopLine := kf - (kf * (stopPercent / 100))
    
    if long[1] == true and stopLine <= stopLine[1]
        stopLine := stopLine[1]
    else if (long[1] == true)
        stopPercent := stopPercent - downStep
        if(stopPercent < stopPercentMin)
            stopPercent := stopPercentMin
    
    if(kf < stopLine)
        long := false
        stopPercent := stopPercentMax
        stopLine := kf + (kf * (stopPercent / 100))
        
else
    stopLine := kf + (kf * (stopPercent / 100))
    
    if long[1] == false and stopLine >= stopLine[1]
        stopLine := stopLine[1]
    else if(long[1] == false)
        stopPercent := stopPercent - downStep
        if(stopPercent < stopPercentMin)
            stopPercent := stopPercentMin
            
    if(kf > stopLine)
        long := true
        stopPercent := stopPercentMax
        stopLine := kf - (kf * (stopPercent / 100))


//------------------- determine buy and sell points ---------------------
buySignall = window() and long  and (not stoppedOutLong)
sellSignall = window() and (not long)  and (not stoppedOutShort)
                    
                    
if longEntry and shortEntry 

    if buySignall and baseTP1 <= 0.0
            
        if strategy.position_size < 0
            if close < strategy.position_avg_price
                isLastProfit := true
        else if strategy.position_size == 0
            if strategy.wintrades > winCounter //strategy.wintrades[ barindex ]
                isLastProfit := true
        else
            isLastProfit := false
        
    else if sellSignall and baseTP1 <= 0.0
        
        if strategy.position_size > 0
            if close > strategy.position_avg_price
                isLastProfit := true
        else if strategy.position_size == 0
            if strategy.wintrades > winCounter //strategy.wintrades[ barindex ]
                isLastProfit := true
        else
            isLastProfit := false
    
    else if isTakeTP2 == true
        isLastProfit := true
    else
        isLastProfit := false

else if longEntry
    if sellSignall
        winCounterBuffer := winCounter
    if buySignall
        if winCounter > winCounterBuffer
            isLastProfit := true
        else
            isLastProfit := false

else if shortEntry
    if buySignall
        winCounterBuffer := winCounter
    if sellSignall
        if winCounter > winCounterBuffer
            isLastProfit := true
        else
            isLastProfit := false
    

//------------- set the deviations ------------
var float maxOrderSize = (baseOrderQty * math.pow(priceDeviation, maxOrderCount - 1))

if buySignall or sellSignall
    
    if isLastProfit == false
    
        orderQty := orderQty * priceDeviation
        
        tp1 := tp1 * profitDeviation
        tp2 := tp2 * profitDeviation
        tp3 := tp3 * profitDeviation
        
        tp1 := math.min(tp1, maxTakeProfit)
        tp2 := math.min(tp2, maxTakeProfit)
        tp3 := math.min(tp3, maxTakeProfit)
        
        if orderQty > maxOrderSize
            failCounter := failCounter + 1
            orderQty := baseOrderQty
            tp1 := baseTP1
            tp2 := baseTP2
            tp3 := baseTP3
                
    else
        orderQty := baseOrderQty
        tp1 := baseTP1
        tp2 := baseTP2
        tp3 := baseTP3


// ----------------- put debug labels -------------------
if orderQty == maxOrderSize
    labelColor := color.red
else
    labelColor := isLastProfit ? color.lime : color.yellow

if longEntry and shortEntry
    if buySignall or sellSignall
        label.new( x=bar_index, y=high, text="Qty:"+str.tostring(math.min(orderQty, maxOrderQty))+" | Worst Case:"+str.tostring(failCounter) ,color = labelColor  )
else if longEntry
    if buySignall
        label.new( x=bar_index, y=high, text="Qty:"+str.tostring(math.min(orderQty, maxOrderQty))+" | Worst Case:"+str.tostring(failCounter) ,color = labelColor  )
else if shortEntry
    if sellSignall
        label.new( x=bar_index, y=high, text="Qty:"+str.tostring(math.min(orderQty, maxOrderQty))+" | Worst Case:"+str.tostring(failCounter) ,color = labelColor  )



//---------- execute the strategy -----------------
nz(orderQty, baseOrderQty)

if longEntry and shortEntry

    if long
        strategy.close_all( when = buySignall, comment = exitShortComment)
        strategy.entry("LONG", strategy.long, when = buySignall, qty=math.min(orderQty, maxOrderQty), comment = enterLongComment)
        stoppedOutLong := true
        stoppedOutShort := false
            
    else
        strategy.close_all(when=sellSignall, comment = exitLongComment)
        strategy.entry("SHORT", strategy.short, when = sellSignall, qty=math.min(orderQty, maxOrderQty), comment = enterShortComment)
        stoppedOutLong  := false
        stoppedOutShort := true

else if(longEntry)
    strategy.entry("LONG", strategy.long,  when = buySignall, qty=math.min(orderQty, maxOrderQty), comment = enterLongComment)
    strategy.close("LONG", when = sellSignall, comment = exitLongComment)
    if long 
        stoppedOutLong := true
        stoppedOutShort := false
    else
        stoppedOutLong  := false
        stoppedOutShort := true

else if(shortEntry)
    strategy.entry("SHORT", strategy.short, when = sellSignall, qty=math.min(orderQty, maxOrderQty), comment = enterShortComment)
    strategy.close("SHORT", when = buySignall, comment = exitShortComment)
    if not long
        stoppedOutShort := true
        stoppedOutLong  := false
    else
        stoppedOutShort := false
        stoppedOutLong := true



//--------- calculate the TP/SL entries -----------
longProfitPrice1  = strategy.position_avg_price * (1 + tp1 * 0.01)
longProfitPrice2  = strategy.position_avg_price * (1 + tp2 * 0.01)
longProfitPrice3  = strategy.position_avg_price * (1 + tp3 * 0.01)
        
shortProfitPrice1  = strategy.position_avg_price * (1 - tp1 * 0.01)
shortProfitPrice2  = strategy.position_avg_price * (1 - tp2 * 0.01)
shortProfitPrice3  = strategy.position_avg_price * (1 - tp3 * 0.01)

longStopPrice = strategy.position_avg_price * (1 - stopLoss * 0.01)
shortStopPrice = strategy.position_avg_price * (1 + stopLoss * 0.01)

shortSafeStopPrice2 = strategy.position_avg_price * (1 - 0.2 * 0.01)
longSafeStopPrice2 = strategy.position_avg_price * (1 + 0.2 * 0.01)

longSafeStopPrice1 = stopLine
shortSafeStopPrice1 = stopLine

//----------- calculate TP quantity values -----------
takeQty1 = math.min(orderQty, maxOrderQty) * qt1 / 100
takeQty2 = math.min(orderQty, maxOrderQty) * qt2 / 100
takeQty3 = math.min(orderQty, maxOrderQty) * qt3 / 100


//----------------- take profit and stop loss processes -----------------
if strategy.position_size > 0

    if close > longProfitPrice1 and tp1 > 0 and isTakeTP1 == false
        strategy.close(id="LONG", qty=takeQty1, comment = "longTP 1")
        isTakeTP1 := true
    
    if close > longProfitPrice2 and tp2 > 0 and isTakeTP2 == false
        strategy.close(id="LONG", qty=takeQty2, comment = "longTP 2")
        isTakeTP2 := true
    
    if close > longProfitPrice3 and tp3 > 0 and isTakeTP3 == false
        strategy.close(id="LONG", qty=takeQty3, comment = "longTP 3")
        isTakeTP3 := true
    
    if isTakeTP2 == true and useSafeStop2
        strategy.exit(id="LONG", stop=longSafeStopPrice2, comment = "Long Safe Stop2")
    if isTakeTP1 == true and useSafeStop1
        strategy.exit(id="LONG", stop=longSafeStopPrice1, comment = "Long Safe Stop1")
    
            
if strategy.position_size < 0

    if close < shortProfitPrice1 and tp1 > 0 and isTakeTP1 == false
        strategy.close(id="SHORT", qty=takeQty1, comment = "Short TP 1")
        isTakeTP1 := true
    
    if close < shortProfitPrice2 and tp2 > 0 and isTakeTP2 == false
        strategy.close(id="SHORT", qty=takeQty2, comment = "Short TP 2")
        isTakeTP2 := true
    
    if close < shortProfitPrice3 and tp3 > 0 and isTakeTP3 == false
        strategy.close(id="SHORT", qty=takeQty3, comment = "Short TP 3")
        isTakeTP3 := true
    
    if isTakeTP2 == true and useSafeStop2
        strategy.exit(id="SHORT", stop=shortSafeStopPrice2, comment = "Short Safe Stop2")    
    if isTakeTP1 == true and useSafeStop1
        strategy.exit(id="SHORT", stop=shortSafeStopPrice1, comment = "Short Safe Stop1")

if(initialStopLoss>0.0)
    if ( strategy.position_size > 0 )
        strategy.exit(id="LONG",  stop=longStopPrice, comment = "Long Stop Loss")

    else if ( strategy.position_size < 0 )
        strategy.exit(id="SHORT",  stop=shortStopPrice,  comment = "Short Stop Loss")
        
    
    
if buySignall or sellSignall
    
    isTakeTP1 := false
    isTakeTP2 := false  
    isTakeTP3 := false
    
    winCounter := strategy.wintrades
    

//------------- plot charts ---------------------
lineColor1 = long ? color.green : color.red
lineColor2 = long ? color.aqua : color.fuchsia

kalmanPlot = plot(kf, color=lineColor1, linewidth=3, title = "Kalman Filter")
stopPlot = plot(stopLine, color=lineColor2, linewidth=2, title = "Stop Loss Line")

Overview

饥饿者~01 calculates entry points using a Kalman gain filter and dynamic approach percentages. Positions execute in both long and short directions, scaling out across three predefined take-profit levels with optional safety stops after the first or second target. Users can configure the Kalman gain, safety order attempts, price deviations, and date filters. Notably, the initial stop loss defaults to zero percent, meaning the strategy operates without a default initial stop loss.

Details

Published by

wynnforthework on GitHub

Code credit

liaodinghai, as written in the script's header

Type

Strategy, Pine Script v5

Draws

On the price chart

Category

Moving averages, Trend

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

  • The strategy enters trades without a stop loss

File

策略/高收益，嘿嘿！.txt

Repository

github.com/wynnforthework/quant-strategies-knowledge. See its other scripts in the library

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

SettingTypeDefaultVariable
Kalman Gain:float100.0gain
Source:sourceclosesrc
Beginning Approach(%)float5.0stopPercentBase
Final Approach(%)float1.0stopPercentMin
Approach Decrease Stepfloat0.001downStep
Base Order Quantityfloat100.0baseOrderQty
Max Safe Order Attempint4maxOrderCount
Safe Order Deviationfloat3priceDeviation
Profit Deviationfloat1.0profitDeviation
Max Take Profit(%)float25.0maxTakeProfit
Max Order Quantityfloat10000.0maxOrderQty
TP1(%)float1.0baseTP1
Show all 28 settings
SettingTypeDefaultVariable
QT1(%):int40qt1
TP2(%)float3.0baseTP2
QT2(%):int30qt2
TP3(%)float5.0baseTP3
QT3(%):int30qt3
Stop Loss(%)float0.0initialStopLoss
Long EntrybooltruelongEntry
Short EntrybooltrueshortEntry
Safe Stop After TP2booltrueuseSafeStop2
Safe Stop After TP1boolfalseuseSafeStop1
From Date:int1fromDay
/int1fromMonth
/int2021fromYear
To__ Date:int30toDay
/int12toMonth
/int2022toYear
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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