The Playground Series to - A combination of trading concepts
This software component for MetaTrader 5 is built to enhance the capabilities of your trading environment. This Expert Advisor serves as automated trading software. It is utilized to monitor financial markets and execute trades based on predefined algorithmic rules, enabling precise position management without the need for constant manual oversight.
How to Setup and Use The Playground Series to - A combination of trading concepts
1. Installation: Open the "File" menu, select "Open Data Folder," navigate to MQL/Experts, paste your file, and restart the terminal.
2. Activation: Drag the EA from the Navigator onto a chart, ensure "Allow live trading" is checked in the Common tab, and verify the AutoTrading button is green.
3. Optimization: Right-click your chart, choose "Expert List," click "Properties" to adjust inputs, and save your preferred setup as a set file for future use.
4. Maintenance: Regularly check the "Experts" tab in the terminal window to monitor trade logs and potential execution errors.
Frequently Asked Questions
Q: Why is my EA not opening trades? A: Check the "AutoTrading" button, ensure "Allow live trading" is enabled, and verify your broker allows automated trading on your account type.
Q: Can I run multiple EAs on one chart? A: No, each chart can only host one active EA; however, you can open multiple charts for different currency pairs to run several EAs.
Q: What does the "smiley face" icon mean? A: A smiley face in the top-right corner of the chart indicates the EA is successfully running; a frowny face means it is disabled.
Description & Settings
Playground EA Series - Complete Documentation Important Notice
This code is not optimized and is provided as-is for educational and experimental purposes.
Feel free to use, modify, and learn from this code. It serves as a foundation for understanding encroachment-based tradin
g strategies and liquidity targeting.
Overview
Trade based on Fair Value Gap (FVG) encroachment points
Entry logic: Close above ENC = BUY, Close below ENC = SELL
Multiple experimental trading modes tested Version History Playground EA v1.00
Status:
Initial experimental release with dual-mode functionality
Key Features:
Dual trading mode system (Encroachment Scalp / Liquidity Scalp)
Dynamic lot sizing based on volatility (ATR, Range, or Volume-based)
Encroachment-based entries using FVG ENC point
Liquidity sweep detection and trading
Multiple volatility calculation methods
Session filtering for liquidity scalping
Configurable filters and trend alignment checks
Trailing stop loss functionality
Fixed and FVG-based stop loss options
Trading Modes:
PLAYGROUND_ENCROACHMENT_SCALP
: Trades when price closes above/below FVG encroachment point
PLAYGROUND_LIQUIDITY_SCALP
: Trades on liquidity level sweeps with reversal expectations
Input Parameters:
Base lot size with optional dynamic sizing
Profit target and loss threshold in account currency
FVG detection settings (timeframe, minimum gap size, accuracy mode)
Encroachment filters (minimum gap, trend checking)
Liquidity scalping settings (session filter, minimum distance)
Volatility-based lot adjustment
Stop loss configuration (fixed or trailing)
Known Issues:
Liquidity function did not work as intended
Trades closed immediately in some conditions
Required refinement for practical use
Magic Number:
9999
Playground EA v1.01
Status:
Simplified and functional - liquidity mode removed
Changes From v1.00:
Removed liquidity scalping mode entirely
Removed liquidity library dependency
Fixed immediate trade closure issue
Simplified code structure
Focused exclusively on FVG encroachment logic
Removed dynamic lot sizing complexity
Removed trailing stop functionality
Cleaner position management
Key Features:
Single trading mode: Encroachment Scalping
Simple profit/loss management using dollar targets
Optional filters for entry validation
Trend alignment checking (optional)
FVG visualization on chart
Streamlined execution
Trading Logic:
Detects FVG formation
Waits for encroachment point touch
Enters BUY if close above ENC point
Enters SELL if close below ENC point
Exits at fixed profit target or loss threshold
Input Parameters:
Fixed lot size
Profit target (Eprofit) in dollars
Loss threshold (Eloss) in dollars
FVG settings (timeframe, gap size, accuracy)
Optional filters (minimum gap, trend check)
Improvements:
Stable execution
Reliable profit/loss management
No premature trade closures
Works well in testing
Magic Number:
9999
Playground EA v1.02
Status:
Dual-mode reintroduction with Silver Bullet timing
Changes From v1.01:
Reintroduced dual-mode functionality
Added Silver Bullet Encroachment mode
Introduced timed trading windows (Silver Bullet 1, 2, 3)
Added liquidity library back for DOL (Draw On Liquidity) targeting
Mode selection via enumeration (not separate toggles)
Different magic numbers for each mode
Added partial profit taking for Silver Bullet trades
Session-based liquidity targeting
Key Features:
Two distinct trading modes (enum-based selection)
Silver Bullet time windows (3-4am, 10-11am, 2-3pm GMT)
Draw On Liquidity (DOL) targeting
Partial profit taking at multiple targets
Session filtering and priority lists
GMT offset configuration
Trading Modes:
MODE_SILVER_BULLET_ENC
:
Trades only during Silver Bullet windows
Targets liquidity zones (PDH/PDL, PWH/PWL, session highs/lows)
Multiple profit targets as percentage to DOL
Partial closing at Target 1 (50%), full close at Target 2
MODE_SIMPLE_ENC
:
One trade at a time
Fixed profit/loss targets in dollars
No time restrictions
Simple entry/exit logic
Silver Bullet Features:
Configurable time windows with GMT offset
Minimum distance to DOL requirement
Two-stage profit targets (50% and 80% to DOL)
Session-based priority lists
Liquidity sweep tracking
Input Parameters:
Mode selection (Silver Bullet or Simple)
GMT offset for session timing
Silver Bullet window toggles (SB1, SB2, SB3)
DOL distance and target percentages
Standard FVG and filter settings
Separate profit/loss settings per mode
Known Issues:
Confusing default timeframe handling
Enumeration-based mode selection less intuitive
Did not properly implement session DOL mapping
Time window calculations needed refinement
Magic Numbers:
Silver Bullet: 1002
Simple Mode: 1003
w
Playground EA v1.03
Status:
Parallel mode execution with proper DOL implementation
Changes From v1.02:
Changed from enum selection to dual boolean toggles
Both modes can now run at the same time
Each mode uses separate magic numbers for independent tracking
Fixed Silver Bullet time windows (7-8am, 2-3pm, 6-7pm GMT+0)
Improved session DOL targeting
Better session data retrieval from Liquidity Library
Clearer configuration output
Key Features:
Simultaneous dual-mode operation
Independent trade management per mode
Corrected Silver Bullet timing windows
Proper session-based DOL targeting
Clean separation of mode logic
Better session high/low tracking
Trading Modes:
Silver Bullet Mode
(InpUseSilverBulletMode):
SB1: 7-8am GMT+0 targeting session liquidity
SB2: 2-3pm GMT+0 targeting session liquidity
SB3: 6-7pm GMT+0 targeting session liquidity
Multiple trades possible (one per window)
DOL-based profit targets
Simple Mode
(InpUseSimpleMode):
One trade at a time restriction
Dollar-based profit/loss targets
No time restrictions
Independent of Silver Bullet trades
Improvements:
Both modes can be enabled simultaneously
Better error checking for mode activation
Clearer logging and trade identification
Improved session data handling
More intuitive configuration
Session DOL Mapping:
Each Silver Bullet window targets specific session liquidity
Proper priority lists for DOL selection
Session high/low tracking
Fallback to alternative DOL if primary unavailable
Input Parameters:
Boolean toggles for each mode
GMT offset (0 for GMT+0, -4 for New York, etc.)
Individual Silver Bullet window toggles
DOL distance and percentage settings
Standard FVG and filter configurations
Magic Numbers:
Silver Bullet: 1002
Simple Mode: 1003 Playground EA v1.04
Changes From v1.03:
Session-specific DOL targeting (each SB window targets different session)
SB1 (3-4am) targets Sydney Session H/L
SB2 (10-11am) targets Tokyo Session H/L
SB3 (2-3pm) targets London Session H/L
Added Silver Bullet sub-mode toggle (fixed vs DOL targets)
Implemented one-trade-per-window rule for Silver Bullet
Removed partial profit taking logic (full close only)
Added stop loss buffer below FVG boundaries
Better window status tracking
Improved position management
Fixed time zone handling
Key Features:
Session-specific liquidity targeting for each window
Dual target mode for Silver Bullet (fixed profit/loss OR DOL-based)
One active trade per Silver Bullet window maximum
Stop loss placed below FVG boundaries with buffer
Window-based trade tracking
Full position closure (no partial takes)
Trading Modes:
Silver Bullet Mode
:
Fixed Target Sub-mode (InpSBUseFixedTargets = true):
Uses Eprofit/Eloss like Simple mode
Trades during Silver Bullet windows only
One trade per window allowed
DOL Target Sub-mode (InpSBUseFixedTargets = false):
Targets session-specific liquidity levels
Profit target as percentage to DOL
Minimum distance check to DOL
One trade per window allowed
Simple Mode
:
Unchanged from v1.03
One trade at a time globally
Fixed profit/loss targets
Session DOL Targeting:
SB1 (3-4am GMT): Sydney Session High or Low
SB2 (10-11am GMT): Tokyo Session High or Low
SB3 (2-3pm GMT): London Session High or Low
Intelligent selection (high if price below, low if price above)
Stop Loss Implementation:
Placed below FVG bottom (for buys) or above FVG top (for sells)
Configurable buffer in points (default 5 points)
Protects against adverse moves
Loss threshold still applies in dollar terms
One-Trade-Per-Window Rule:
Each Silver Bullet window can have maximum one active trade
Once window's trade is filled, no new trades in that window
Window becomes available when trade is closed
Prevents over-trading within sessions
Input Parameters:
Silver Bullet sub-mode toggle (fixed vs DOL)
Stop loss buffer points
DOL target percentage
Minimum DOL distance
Session-specific window toggles
All standard FVG and filter settings
Improvements:
More disciplined trade management
Better risk control with SL buffers
Clearer session targeting
Prevents window over-trading
Flexible profit target methods
Better logging and status tracking
Magic Numbers:
Silver Bullet: 1004
Simple Mode: 1005 Common Features Across All Versions FVG Detection
Detects three-candle Fair Value Gaps
Configurable minimum gap size
Optional accuracy mode using lower timeframe
Visual plotting of FVG dots
Encroachment point calculation (mid-point of gap)
Reset detection for inverse candles Entry Logic
Core rule: Close above ENC = BUY, Close below ENC = SELL
Optional filters (minimum gap size, trend alignment)
FVG type validation
Encroachment confirmation Position Management
Dollar-based profit targets
Dollar-based loss thresholds
Trade tracking with FVG association
Proper position closure handling
Error handling and logging Visual Elements
FVG formation dots (green for bullish, red for bearish)
Encroachment dots (orange for bullish bias, blue for bearish bias)
Optional liquidity level lines (v1.00, v1.02-v1.04) Technical Specifications Library Dependencies
LiquidityLibrary.mqh
: Required for v1.00, v1.02, v1.03, v1.04 Compatibility
Platform: MetaTrader 5
Language: MQL5 Performance Notes
Not optimized for speed
Suitable for experimentation and learning
May generate volume or margin errors in testing
Code prioritizes readability over efficiency Usage Recommendations
Start with v1.01
for understanding basic encroachment logic
Use v1.04
for production testing with enhanced features
Adjust lot sizes
conservatively
Monitor margin requirements
in testing
Review logs
to understand trade decisions Known Limitations General
Volume errors may occur during testing
Margin errors possible with certain broker configurations
Not optimized for high-frequency trading
Requires proper FVG and Liquidity library setup Version-Specific
v1.00: Liquidity mode non-functional, immediate closures
v1.02: Confusing mode selection, time zone issues Future Development Ideas
Implement risk-based position sizing
Add session volatility adjustments
Create composite liquidity targeting
Develop multi-timeframe FVG confirmation
Add correlation filters
Implement partial profit strategies
Create backtesting optimization tools Disclaimer
The code represents experimental work and learning exercises. Use at your own risk.
Version Summary Table Contact & Contributions
This code is open for community use and improvement. Feel free to:
Modify and enhance the code
Share improvements with the community
Report bugs or issues
Suggest new features or modes
Created by: loki Series: Playground EA (Experimental FVG & Liquidity Testing)
End of Documentation
This code is not optimized and is provided as-is for educational and experimental purposes.
Feel free to use, modify, and learn from this code. It serves as a foundation for understanding encroachment-based tradin
g strategies and liquidity targeting.
Overview
Trade based on Fair Value Gap (FVG) encroachment points
Entry logic: Close above ENC = BUY, Close below ENC = SELL
Multiple experimental trading modes tested Version History Playground EA v1.00
Status:
Initial experimental release with dual-mode functionality
Key Features:
Dual trading mode system (Encroachment Scalp / Liquidity Scalp)
Dynamic lot sizing based on volatility (ATR, Range, or Volume-based)
Encroachment-based entries using FVG ENC point
Liquidity sweep detection and trading
Multiple volatility calculation methods
Session filtering for liquidity scalping
Configurable filters and trend alignment checks
Trailing stop loss functionality
Fixed and FVG-based stop loss options
Trading Modes:
PLAYGROUND_ENCROACHMENT_SCALP
: Trades when price closes above/below FVG encroachment point
PLAYGROUND_LIQUIDITY_SCALP
: Trades on liquidity level sweeps with reversal expectations
Input Parameters:
Base lot size with optional dynamic sizing
Profit target and loss threshold in account currency
FVG detection settings (timeframe, minimum gap size, accuracy mode)
Encroachment filters (minimum gap, trend checking)
Liquidity scalping settings (session filter, minimum distance)
Volatility-based lot adjustment
Stop loss configuration (fixed or trailing)
Known Issues:
Liquidity function did not work as intended
Trades closed immediately in some conditions
Required refinement for practical use
Magic Number:
9999
Playground EA v1.01
Status:
Simplified and functional - liquidity mode removed
Changes From v1.00:
Removed liquidity scalping mode entirely
Removed liquidity library dependency
Fixed immediate trade closure issue
Simplified code structure
Focused exclusively on FVG encroachment logic
Removed dynamic lot sizing complexity
Removed trailing stop functionality
Cleaner position management
Key Features:
Single trading mode: Encroachment Scalping
Simple profit/loss management using dollar targets
Optional filters for entry validation
Trend alignment checking (optional)
FVG visualization on chart
Streamlined execution
Trading Logic:
Detects FVG formation
Waits for encroachment point touch
Enters BUY if close above ENC point
Enters SELL if close below ENC point
Exits at fixed profit target or loss threshold
Input Parameters:
Fixed lot size
Profit target (Eprofit) in dollars
Loss threshold (Eloss) in dollars
FVG settings (timeframe, gap size, accuracy)
Optional filters (minimum gap, trend check)
Improvements:
Stable execution
Reliable profit/loss management
No premature trade closures
Works well in testing
Magic Number:
9999
Playground EA v1.02
Status:
Dual-mode reintroduction with Silver Bullet timing
Changes From v1.01:
Reintroduced dual-mode functionality
Added Silver Bullet Encroachment mode
Introduced timed trading windows (Silver Bullet 1, 2, 3)
Added liquidity library back for DOL (Draw On Liquidity) targeting
Mode selection via enumeration (not separate toggles)
Different magic numbers for each mode
Added partial profit taking for Silver Bullet trades
Session-based liquidity targeting
Key Features:
Two distinct trading modes (enum-based selection)
Silver Bullet time windows (3-4am, 10-11am, 2-3pm GMT)
Draw On Liquidity (DOL) targeting
Partial profit taking at multiple targets
Session filtering and priority lists
GMT offset configuration
Trading Modes:
MODE_SILVER_BULLET_ENC
:
Trades only during Silver Bullet windows
Targets liquidity zones (PDH/PDL, PWH/PWL, session highs/lows)
Multiple profit targets as percentage to DOL
Partial closing at Target 1 (50%), full close at Target 2
MODE_SIMPLE_ENC
:
One trade at a time
Fixed profit/loss targets in dollars
No time restrictions
Simple entry/exit logic
Silver Bullet Features:
Configurable time windows with GMT offset
Minimum distance to DOL requirement
Two-stage profit targets (50% and 80% to DOL)
Session-based priority lists
Liquidity sweep tracking
Input Parameters:
Mode selection (Silver Bullet or Simple)
GMT offset for session timing
Silver Bullet window toggles (SB1, SB2, SB3)
DOL distance and target percentages
Standard FVG and filter settings
Separate profit/loss settings per mode
Known Issues:
Confusing default timeframe handling
Enumeration-based mode selection less intuitive
Did not properly implement session DOL mapping
Time window calculations needed refinement
Magic Numbers:
Silver Bullet: 1002
Simple Mode: 1003
w
Playground EA v1.03
Status:
Parallel mode execution with proper DOL implementation
Changes From v1.02:
Changed from enum selection to dual boolean toggles
Both modes can now run at the same time
Each mode uses separate magic numbers for independent tracking
Fixed Silver Bullet time windows (7-8am, 2-3pm, 6-7pm GMT+0)
Improved session DOL targeting
Better session data retrieval from Liquidity Library
Clearer configuration output
Key Features:
Simultaneous dual-mode operation
Independent trade management per mode
Corrected Silver Bullet timing windows
Proper session-based DOL targeting
Clean separation of mode logic
Better session high/low tracking
Trading Modes:
Silver Bullet Mode
(InpUseSilverBulletMode):
SB1: 7-8am GMT+0 targeting session liquidity
SB2: 2-3pm GMT+0 targeting session liquidity
SB3: 6-7pm GMT+0 targeting session liquidity
Multiple trades possible (one per window)
DOL-based profit targets
Simple Mode
(InpUseSimpleMode):
One trade at a time restriction
Dollar-based profit/loss targets
No time restrictions
Independent of Silver Bullet trades
Improvements:
Both modes can be enabled simultaneously
Better error checking for mode activation
Clearer logging and trade identification
Improved session data handling
More intuitive configuration
Session DOL Mapping:
Each Silver Bullet window targets specific session liquidity
Proper priority lists for DOL selection
Session high/low tracking
Fallback to alternative DOL if primary unavailable
Input Parameters:
Boolean toggles for each mode
GMT offset (0 for GMT+0, -4 for New York, etc.)
Individual Silver Bullet window toggles
DOL distance and percentage settings
Standard FVG and filter configurations
Magic Numbers:
Silver Bullet: 1002
Simple Mode: 1003 Playground EA v1.04
Changes From v1.03:
Session-specific DOL targeting (each SB window targets different session)
SB1 (3-4am) targets Sydney Session H/L
SB2 (10-11am) targets Tokyo Session H/L
SB3 (2-3pm) targets London Session H/L
Added Silver Bullet sub-mode toggle (fixed vs DOL targets)
Implemented one-trade-per-window rule for Silver Bullet
Removed partial profit taking logic (full close only)
Added stop loss buffer below FVG boundaries
Better window status tracking
Improved position management
Fixed time zone handling
Key Features:
Session-specific liquidity targeting for each window
Dual target mode for Silver Bullet (fixed profit/loss OR DOL-based)
One active trade per Silver Bullet window maximum
Stop loss placed below FVG boundaries with buffer
Window-based trade tracking
Full position closure (no partial takes)
Trading Modes:
Silver Bullet Mode
:
Fixed Target Sub-mode (InpSBUseFixedTargets = true):
Uses Eprofit/Eloss like Simple mode
Trades during Silver Bullet windows only
One trade per window allowed
DOL Target Sub-mode (InpSBUseFixedTargets = false):
Targets session-specific liquidity levels
Profit target as percentage to DOL
Minimum distance check to DOL
One trade per window allowed
Simple Mode
:
Unchanged from v1.03
One trade at a time globally
Fixed profit/loss targets
Session DOL Targeting:
SB1 (3-4am GMT): Sydney Session High or Low
SB2 (10-11am GMT): Tokyo Session High or Low
SB3 (2-3pm GMT): London Session High or Low
Intelligent selection (high if price below, low if price above)
Stop Loss Implementation:
Placed below FVG bottom (for buys) or above FVG top (for sells)
Configurable buffer in points (default 5 points)
Protects against adverse moves
Loss threshold still applies in dollar terms
One-Trade-Per-Window Rule:
Each Silver Bullet window can have maximum one active trade
Once window's trade is filled, no new trades in that window
Window becomes available when trade is closed
Prevents over-trading within sessions
Input Parameters:
Silver Bullet sub-mode toggle (fixed vs DOL)
Stop loss buffer points
DOL target percentage
Minimum DOL distance
Session-specific window toggles
All standard FVG and filter settings
Improvements:
More disciplined trade management
Better risk control with SL buffers
Clearer session targeting
Prevents window over-trading
Flexible profit target methods
Better logging and status tracking
Magic Numbers:
Silver Bullet: 1004
Simple Mode: 1005 Common Features Across All Versions FVG Detection
Detects three-candle Fair Value Gaps
Configurable minimum gap size
Optional accuracy mode using lower timeframe
Visual plotting of FVG dots
Encroachment point calculation (mid-point of gap)
Reset detection for inverse candles Entry Logic
Core rule: Close above ENC = BUY, Close below ENC = SELL
Optional filters (minimum gap size, trend alignment)
FVG type validation
Encroachment confirmation Position Management
Dollar-based profit targets
Dollar-based loss thresholds
Trade tracking with FVG association
Proper position closure handling
Error handling and logging Visual Elements
FVG formation dots (green for bullish, red for bearish)
Encroachment dots (orange for bullish bias, blue for bearish bias)
Optional liquidity level lines (v1.00, v1.02-v1.04) Technical Specifications Library Dependencies
LiquidityLibrary.mqh
: Required for v1.00, v1.02, v1.03, v1.04 Compatibility
Platform: MetaTrader 5
Language: MQL5 Performance Notes
Not optimized for speed
Suitable for experimentation and learning
May generate volume or margin errors in testing
Code prioritizes readability over efficiency Usage Recommendations
Start with v1.01
for understanding basic encroachment logic
Use v1.04
for production testing with enhanced features
Adjust lot sizes
conservatively
Monitor margin requirements
in testing
Review logs
to understand trade decisions Known Limitations General
Volume errors may occur during testing
Margin errors possible with certain broker configurations
Not optimized for high-frequency trading
Requires proper FVG and Liquidity library setup Version-Specific
v1.00: Liquidity mode non-functional, immediate closures
v1.02: Confusing mode selection, time zone issues Future Development Ideas
Implement risk-based position sizing
Add session volatility adjustments
Create composite liquidity targeting
Develop multi-timeframe FVG confirmation
Add correlation filters
Implement partial profit strategies
Create backtesting optimization tools Disclaimer
The code represents experimental work and learning exercises. Use at your own risk.
Version Summary Table Contact & Contributions
This code is open for community use and improvement. Feel free to:
Modify and enhance the code
Share improvements with the community
Report bugs or issues
Suggest new features or modes
Created by: loki Series: Playground EA (Experimental FVG & Liquidity Testing)
End of Documentation
