Displaying edakads improved code 6 Pastie For Amibroker (AFL)

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/* HARMONIC PATTERN DETECTION
 
Automatic Detection of Harmonic Patterns - Gartley, Bat, Butterfly and Crab.
Original code by joy.edakad@gmail.com, see:
http://www.inditraders.com/amibroker/1934-afl-harmonic-patterns.html
file: Harmonic1.1.afl (2009)
 
Modernized by E.M.Pottasch (Dec 2016).
- Improved visualisation of the patterns.
- Nomenclature of variables, constants and arrays, adjusted
    following code from David Keleher.
- Improved point D calculation. The original code sometimes
    displays patterns that are not known in realtime or
    displays the pattern development points too soon. The
    pattern is only know more than rightStrength bars after
    point4.
- uncompleted fractal pivots given white color
- number of problems with original code corrected for */
 
Version( 6.0 );
GfxSetCoordsMode( 1 );
GfxSetOverlayMode( 1 );
 
BullBat4 = BullButterfly4 = BullCrab4 = BullGartley4 = 0;
BullBat = BullButterfly = BullCrab = BullGartley = 0;
BearBat4 = BearButterfly4 = BearCrab4 = BearGartley4 = 0;
BearBat = BearButterfly = BearCrab = BearGartley = 0;
pk = tr = pkn = trn = 0;
 
bi = BarIndex();
fvb = FirstVisibleValue( bi );
lvb = LastVisibleValue( bi );
 
GraphXSpace = 5;
SetChartBkColor( colorBlack );
SetChartOptions( 1, chartShowDates, chartGridMiddle, 0, 0, 0 );
SetBarFillColor( IIf( C > O, ColorRGB( 0, 75, 0 ), IIf( C <= O, ColorRGB( 75, 0, 0 ), colorLightGrey ) ) );
Plot( C, "", IIf( C > O, ColorRGB( 0, 255, 0 ), IIf( C <= O, ColorRGB( 255, 0, 0 ), colorLightGrey ) ), 64, Null, Null, 0, 0, 1 );
 
_SECTION_BEGIN( "Patterns" );
rightstrength = Param( "Right Strength", 5, 2, 50, 1 );
leftstrength = Param( "Left Strength", 10, 2, 50, 1 );
plotFractals = ParamToggle( "Show Fractal Pivots", "Off|On", 0 );
plotLabels = ParamToggle( "Show Fractal Labels", "Off|On", 0 );
bu = ParamToggle( "Show Bullish Pattern", "Off|On", 1 );
be = ParamToggle( "Show Bearish Pattern", "Off|On", 1 );
nBull = Param( "Max Number of Bullish Patterns", 10, 0, 100, 1 );
nBear = Param( "Max Number of Bearish Patterns", 10, 0, 100, 1 );
dBat = ParamToggle( "Draw Bat", "Off|On", 1 );
dBut = ParamToggle( "Draw Buterfly", "Off|On", 1 );
dCrab = ParamToggle( "Draw Crab", "Off|On", 1 );
dGart = ParamToggle( "Draw Gartley", "Off|On", 1 );
showPatternDevelopmentPoints = ParamToggle( "Show Points of Pattern Development", "Off|On", 1 );
showPatternLabels = ParamToggle( "Show Pattern Labels", "Off|On", 0 );
showPatternName = ParamToggle( "Show Pattern Name", "Off|On", 1 );
_SECTION_END();
 
_SECTION_BEGIN( "Gartley" );
GBmin = Param( "Swing B Min.", 0.55, 0.3, 1, 0.01 );
GBmax = Param( "Swing B Max.", 0.72, 0.4, 1, 0.01 );
GCmin = Param( "Swing C Min.", 0.38, 0.3, 1.27, 0.01 );
GCmax = Param( "Swing C Max.", 1.0, 0.4, 1.27, 0.01 );
GDmin = Param( "Swing D Min.(XA)", 0.55, 0.3, 1, 0.01 );
GDmax = Param( "Swing D Max.(XA)", 1.0, 0.4, 1.0, 0.01 );
_SECTION_END();
 
_SECTION_BEGIN( "Bat" );
BatBmin = Param( "Swing B Min.", 0.38, 0.3, 1, 0.01 );
BatBmax = Param( "Swing B Max.", 0.55, 0.4, 1, 0.01 );
BatCmin = Param( "Swing C Min.", 0.38, 0.3, 1.62, 0.01 );
BatCmax = Param( "Swing C Max.", 1.27, 0.4, 1.62, 0.01 );
BatDmin = Param( "Swing D Min.(XA)", 0.5, 0.3, 1, 0.01 );
BatDmax = Param( "Swing D Max.(XA)", 1.0, 0.4, 1.0, 0.01 );
_SECTION_END();
 
_SECTION_BEGIN( "Butterfly" );
BtBmin = Param( "Swing B Min.", 0.55, 0.3, 1, 0.01 );
BtBmax = Param( "Swing B Max.", 0.9, 0.4, 1, 0.01 );
BtCmin = Param( "Swing C Min.", 0.38, 0.3, 1.62, 0.01 );
BtCmax = Param( "Swing C Max.", 1.27, 0.4, 1.62, 0.01 );
BtDmin = Param( "Swing D Min.(XA)", 1, 1, 1.8, 0.01 );
BtDmax = Param( "Swing D Max.(XA)", 1.38, 1, 1.8, 0.01 );
_SECTION_END();
 
_SECTION_BEGIN( "Crab" );
CBmin = Param( "Swing B Min.", 0.38, 0.3, 1, 0.01 );
CBmax = Param( "Swing B Max.", 0.65, 0.4, 1, 0.01 );
CCmin = Param( "Swing C Min.", 0.38, 0.3, 1.62, 0.01 );
CCmax = Param( "Swing C Max.", 1.270, 0.4, 1.62, 0.01 );
CDmin = Param( "Swing D Min.(XA)", 1.25, 1, 1.8, 0.01 );
CDmax = Param( "Swing D Max.(XA)", 1.8, 1, 2, 0.01 );
_SECTION_END();
 
function GetTop()
{
    Top = H == HHV( H, leftstrength ) AND Ref( HHV( H, rightstrength ), rightstrength ) < H;
    Top = Top AND LastValue( bi ) - ValueWhen( Top, bi ) > rightstrength;
    return Top;
}
 
function GetValley()
{
    Valley = L == LLV( L, leftstrength ) AND Ref( LLV( L, rightstrength ), rightstrength ) > L;
    Valley = Valley AND LastValue( bi ) - ValueWhen( Valley, bi ) > rightstrength;
    return Valley;
}
 
pk = GetTop();
tr = GetValley();
 
pk = IIf( pk, IIf( ValueWhen( pk, bi, 2 ) < ValueWhen( tr, bi ), pk, IIf( ValueWhen( pk, H, 2 ) > H, False, pk ) ), pk );
pk = IIf( pk AND ValueWhen( pk, bi, 0 ) > bi, IIf( ValueWhen( pk, bi, 0 ) < ValueWhen( tr, bi, 0 ), IIf( ValueWhen( pk, H, 0 ) >= H, False, pk ), pk ), pk );
tr = IIf( tr, IIf( ValueWhen( tr, bi, 2 ) < ValueWhen( pk, bi ), tr, IIf( ValueWhen( tr, L, 2 ) < L, False, tr ) ), tr );
tr = IIf( tr AND ValueWhen( tr, bi, 0 ) > bi , IIf( ValueWhen( tr, bi, 0 ) < ValueWhen( pk, bi, 0 ), IIf( ValueWhen( tr, L, 0 ) <= L, False, tr ), tr ), tr );
 
function calculateWorkingFractalPivots()
{
    pkn = H == HHV( H, leftStrength );
    trn = L == LLV( L, leftStrength );
 
    for( i = 0; i < 3; i++ )
    {
        VarSet( "pxn" + i, ValueWhen( pkn, bi, i ) );
        VarSet( "txn" + i, ValueWhen( trn, bi, i ) );
        VarSet( "phn" + i, ValueWhen( pkn, H, i ) );
        VarSet( "tln" + i, ValueWhen( trn, L, i ) );
    }
}
calculateWorkingFractalPivots();
 
for( i = 0; i < 3; i++ )
{
    VarSet( "px" + i, ValueWhen( pk, bi, i ) );
    VarSet( "tx" + i, ValueWhen( tr, bi, i ) );
    VarSet( "ph" + i, ValueWhen( pk, H, i ) );
    VarSet( "tl" + i, ValueWhen( tr, L, i ) );
}
 
ll = tr AND tl1 < tl2;
hl = tr AND tl1 > tl2;
hh = pk AND ph1 > ph2;
lh = pk AND ph1 < ph2;
dt = pk AND ph1 == ph2;
db = tr AND tl1 == tl2;
 
if( PlotFractals )
{
    PlotShapes( shapeSmallCircle * tr, IIf( tx1 < px0, ColorRGB( 0, 0, 255 ), colorWhite ), 0, L, -10 );
    PlotShapes( shapeSmallCircle * pk, IIf( px1 < tx0, ColorRGB( 255, 0, 0 ), colorWhite ), 0, H, 10 );
}
 
// +++ Bullish Patterns
PTvalid = ( px1 > tx1 AND tx1 > px2 AND px2 > tx2 ) AND pk;
 
if( dGart AND bu )
{
    BullGartley4 = PTvalid AND( ph2 - tl1 ) / ( ph2 - tl2 ) > GBmin AND( ph2 - tl1 ) / ( ph2 - tl2 ) < GBmax
                   AND( ph1 - tl1 ) / ( ph2 - tl1 ) > GCMin AND( ph1 - tl1 ) / ( ph2 - tl1 ) < GCMax;
    BullGartley = IIf( Nz( LowestSince( BullGartley4, L ) ) < Nz( ValueWhen( BullGartley4, ph2 ) ) - ( Nz( ValueWhen( BullGartley4, ph2 ) ) - Nz( ValueWhen( BullGartley4, tl2 ) ) ) * GDmin AND
                       Nz( LowestSince( bullGartley4, L ) ) > Nz( ValueWhen( BullGartley4, ph2 ) ) - ( Nz( ValueWhen( BullGartley4, ph2 ) ) - Nz( ValueWhen( BullGartley4, tl2 ) ) ) * GDmax AND
                       Nz( HighestSince( BullGartley4, H ) ) <= Nz( ValueWhen( BullGartley4, ph1 ) ) AND
                       Nz( LowestSince( BullGartley4, L ) ) < Nz( ValueWhen( BullGartley4, tl1 ) ) AND
                       Nz( BarsSince( BullGartley4 ) ) > rightStrength AND
                       Nz( trn ) AND
                       Nz( LowestSince( bullGartley4, L ) ) == L, True, False );
}
 
if( dBat AND bu )
{
    BullBat4 = PTvalid AND( ph2 - tl1 ) / ( ph2 - tl2 ) > BatBmin AND( ph2 - tl1 ) / ( ph2 - tl2 ) < BatBmax
               AND( ph1 - tl1 ) / ( ph2 - tl1 ) > BatCMin AND( ph1 - tl1 ) / ( ph2 - tl1 ) < BatCMax;
    BullBat = IIf( Nz( LowestSince( BullBat4, L ) ) < Nz( ValueWhen( BullBat4, ph2 ) ) - ( Nz( ValueWhen( BullBat4, ph2 ) ) - Nz( ValueWhen( BullBat4, tl2 ) ) ) * BatDmin AND
                   Nz( LowestSince( BullBat4, L ) ) > Nz( ValueWhen( BullBat4, ph2 ) ) - ( Nz( ValueWhen( BullBat4, ph2 ) ) - Nz( ValueWhen( BullBat4, tl2 ) ) ) * BatDmax AND
                   Nz( HighestSince( BullBat4, H ) ) <= Nz( ValueWhen( BullBat4, ph1 ) ) AND
                   Nz( LowestSince( BullBat4, L ) ) < Nz( ValueWhen( BullBat4, tl1 ) ) AND
                   Nz( BarsSince( BullBat4 ) ) > rightStrength AND
                   Nz( trn ) AND
                   Nz( LowestSince( BullBat4, L ) ) == L, True, False );
}
 
if( dBut AND bu )
{
    BullButterfly4 = PTvalid AND( ph2 - tl1 ) / ( ph2 - tl2 ) > BtBmin AND( ph2 - tl1 ) / ( ph2 - tl2 ) < BtBMax
                     AND( ph1 - tl1 ) / ( ph2 - tl1 ) > BtCmin AND( ph1 - tl1 ) / ( ph2 - tl1 ) < BtCmax;
    BullButterfly = IIf( Nz( LowestSince( BullButterfly4, L ) ) < Nz( ValueWhen( BullButterfly4, ph2 ) ) - ( Nz( ValueWhen( BullButterfly4, ph2 ) ) - Nz( ValueWhen( BullButterfly4, tl2 ) ) ) * BtDMin AND
                         Nz( LowestSince( BullButterfly4, L ) ) > Nz( ValueWhen( BullButterfly4, ph2 ) ) - ( Nz( ValueWhen( BullButterfly4, ph2 ) ) - Nz( ValueWhen( BullButterfly4, tl2 ) ) ) * BtDmax AND
                         Nz( HighestSince( BullButterfly4, H ) ) <= Nz( ValueWhen( BullButterfly4, ph1 ) ) AND
                         Nz( LowestSince( BullButterfly4, L ) ) < Nz( ValueWhen( BullButterfly4, tl2 ) ) AND
                         Nz( BarsSince( BullButterfly4 ) ) > rightStrength AND
                         Nz( trn ) AND
                         Nz( LowestSince( bullButterfly4, L ) ) == L, True, False );
}
 
if( dCrab AND bu )
{
    BullCrab4 = PTvalid AND( ph2 - tl1 ) / ( ph2 - tl2 ) > CBmin AND( ph2 - tl1 ) / ( ph2 - tl2 ) < CBmax
                AND( ph1 - tl1 ) / ( ph2 - tl1 ) > CCmin AND( ph1 - tl1 ) / ( ph2 - tl1 ) < CCmax;
    BullCrab = IIf( Nz( LowestSince( BullCrab4, L ) ) < Nz( ValueWhen( BullCrab4, ph2 ) ) - ( Nz( ValueWhen( BullCrab4, ph2 ) ) - Nz( ValueWhen( BullCrab4, tl2 ) ) ) * CDmin AND
                    Nz( LowestSince( BullCrab4, L ) ) > Nz( ValueWhen( BullCrab4, ph2 ) ) - ( Nz( ValueWhen( BullCrab4, ph2 ) ) - Nz( ValueWhen( BullCrab4, tl2 ) ) ) * CDmax AND
                    Nz( HighestSince( BullCrab4, H ) ) <= Nz( ValueWhen( BullCrab4, ph1 ) ) AND
                    Nz( LowestSince( BullCrab4, L ) ) < Nz( ValueWhen( BullCrab4, tl2 ) ) AND
                    Nz( BarsSince( BullCrab4 ) ) > rightStrength AND
                    Nz( trn ) AND
                    Nz( LowestSince( bullGartley4, L ) ) == L, True, False );
}
 
BullCrab = BullCrab AND
           IIf( Nz( ValueWhen( BullCrab4, bi ) ) >= Nz( ValueWhen( BullGartley4, bi ) ) AND
                Nz( ValueWhen( BullCrab4, bi ) ) >= Nz( ValueWhen( BullBat4, bi ) ) AND
                Nz( ValueWhen( BullCrab4, bi ) ) >= Nz( ValueWhen( BullButterfly4, bi ) ), 1, 0 );
 
BullBat = BullBat AND
          IIf( Nz( ValueWhen( BullBat4, bi ) ) >= Nz( ValueWhen( BullGartley4, bi ) ) AND
               Nz( ValueWhen( BullBat4, bi ) ) >= Nz( ValueWhen( BullCrab4, bi ) ) AND
               Nz( ValueWhen( BullBat4, bi ) ) >= Nz( ValueWhen( BullButterfly4, bi ) ), 1, 0 );
 
BullButterfly = BullButterfly AND
                IIf( Nz( ValueWhen( BullButterfly4, bi ) ) >= Nz( ValueWhen( BullGartley4, bi ) ) AND
                     Nz( ValueWhen( BullButterfly4, bi ) ) >= Nz( ValueWhen( BullCrab4, bi ) ) AND
                     Nz( ValueWhen( BullButterfly4, bi ) ) >= Nz( ValueWhen( BullBat4, bi ) ), 1, 0 );
 
BullGartley = BullGartley AND
              IIf( Nz( ValueWhen( BullGartley4, bi ) ) >= Nz( ValueWhen( BullBat4, bi ) ) AND
                   Nz( ValueWhen( BullGartley4, bi ) ) >= Nz( ValueWhen( BullCrab4, bi ) ) AND
                   Nz( ValueWhen( BullGartley4, bi ) ) >= Nz( ValueWhen( BullButterfly4, bi ) ), 1, 0 );
 
BullHar4 = BullGartley4 OR BullButterfly4 OR BullBat4 OR BullCrab4 ;
BullHar = BullGartley OR BullButterfly OR BullBat OR BullCrab ;
 
buXy = ValueWhen( BullHar4, tl2 );
buXx = ValueWhen( BullHar4, tx2 );
buAy = ValueWhen( BullHar4, ph2 );
buAx = ValueWhen( BullHar4, px2 );
buBy = ValueWhen( BullHar4, tl1 );
buBx = ValueWhen( BullHar4, tx1 );
buCy = ValueWhen( BullHar4, ph1 );
buCx = ValueWhen( BullHar4, px1 );
buDy = ValueWhen( BullHar, L );
buDx = ValueWhen( BullHar, bi );
 
buABdXA = ( buAy - buBy ) / ( buAy - buXy );
buBCdAB = ( buCy - buBy ) / ( buAy - buBy );
buADdXA = ( buAy - buDy ) / ( buAy - buXy );
buBCdCD = ( buCy - buDy ) / ( buCy - buBy );
 
function drawBullishPattern( i, patternName )
{
    GfxSelectSolidBrush( ColorRGB( 0, 0, 50 ) );
    GfxSetBkColor( colorBlack );
    GfxSelectPen( ColorRGB( 0, 0, 255 ), 2, 0 );
    GfxMoveTo( buXx[i], buXy[i] );
    GfxLineTo( buAx[i], buAy[i] );
    GfxMoveTo( buAx[i], buAy[i] );
    GfxLineTo( buBx[i], buBy[i] );
    GfxMoveTo( buBx[i], buBy[i] );
    GfxLineTo( buCx[i], buCy[i] );
    GfxMoveTo( buCx[i], buCy[i] );
    GfxLineTo( buDx[i], buDy[i] );
    GfxMoveTo( buXx[i], buXy[i] );
    GfxLineTo( buAx[i], buAy[i] );
 
    GfxSelectPen( ColorRGB( 0, 0, 255 ), 1, 2 );
    GfxMoveTo( buXx[i], buXy[i] );
    GfxLineTo( buBx[i], buBy[i] );
    GfxMoveTo( buAx[i], buAy[i] );
    GfxLineTo( buCx[i], buCy[i] );
    GfxMoveTo( buBx[i], buBy[i] );
    GfxLineTo( buDx[i], buDy[i] );
    GfxMoveTo( buXx[i], buXy[i] );
    GfxLineTo( buDx[i], buDy[i] );
 
    GfxPolygon( buXx[i], buXy[i], buAx[i], buAy[i], buBx[i], buBy[i], buCx[i], buCy[i], buDx[i], buDy[i], buBx[i], buBy[i], buXx[i], buXy[i] );
 
    if( showPatternName )
    {
        GfxSetTextColor( ColorRGB( 0, 0, 0 ) );
        GfxSelectFont( "Helvetica", 10, 700 );
        GfxSetBkColor( ColorRGB( 0, 0, 255 ) );
        GfxSetTextAlign( 0 | 8 );
        GfxTextOut( patternName, buCx[i] + 3, buCy[i] );
    }
 
    GfxSetTextAlign( 0 | 0 );
    GfxSetTextColor( ColorRGB( 0, 0, 255 ) );
    GfxSetBkColor( ColorRGB( 0, 0, 0 ) );
    GfxSelectFont( "Helvetica", 8, 700 );
    GfxTextOut( "" + Prec( buABdXA[i], 2 ), ( buBx[i] + buXx[i] ) / 2, ( buBy[i] + buXy[i] ) / 2 );
    GfxTextOut( "" + Prec( buBCdAB[i], 2 ), ( buCx[i] + buAx[i] ) / 2, ( buCy[i] + buAy[i] ) / 2 );
    GfxTextOut( "" + Prec( buADdXA[i], 2 ), ( buDx[i] + buXx[i] ) / 2, ( buDy[i] + buXy[i] ) / 2 );
    GfxTextOut( "" + Prec( buBCdCD[i], 2 ), ( buBx[i] + buDx[i] ) / 2, ( buBy[i] + buDy[i] ) / 2 );
 
    if( showPatternLabels )
    {
        GfxSetTextColor( ColorRGB( 0, 0, 0 ) );
        GfxSelectFont( "Helvetica", 9, 700 );
        GfxSetBkColor( ColorRGB( 0, 0, 255 ) );
        GfxSetTextAlign( 0 | 24 );
        GfxTextOut( "X", buXx[i] - 2, buXy[i] );
        GfxTextOut( "A", buAx[i] - 2, buAy[i] );
        GfxTextOut( "B", buBx[i] - 2, buBy[i] );
        GfxTextOut( "C", buCx[i] + 1, buCy[i] );
        GfxTextOut( "D", buDx[i] + 1, buDy[i] );
    }
}
 
function drawBullishPatterns()
{
    flag1 = 1;
    flag2 = 0;
    cnt = 0;
 
    for( i = lvb; i > fvb; i-- )
    {
        if( BullHar[i] AND flag1 AND cnt < nBull )
        {
            flag1 = 0;
            flag2 = 1;
            cnt = cnt + 1;
 
            if( BullButterfly[i] AND bu AND dBut )
            {
                drawBullishPattern( i, "Bullish Butterfly" );
            }
 
            if( BullCrab[i] AND bu AND dCrab )
            {
                drawBullishPattern( i, "Bullish Crab" );
            }
 
            if( BullBat[i] AND bu AND dBat )
            {
                drawBullishPattern( i, "Bullish Bat" );
            }
 
            if( BullGartley[i] AND bu AND dGart )
            {
                drawBullishPattern( i, "Bullish Gartley" );
            }
        }
 
        if( BullHar4[i] AND flag2 )
        {
            flag1 = 1;
            flag2 = 0;
        }
    }
}
drawBullishPatterns();
 
// +++ Bearish Patterns
PTvalid = ( tx1 > px1 AND px1 > tx2 AND tx2 > px2 ) AND tr;
 
if( dGart AND be )
{
    BearGartley4 = PTvalid AND( ph1 - tl2 ) / ( ph2 - tl2 ) > GBmin AND( ph1 - tl2 ) / ( ph2 - tl2 ) < GBmax AND
                   ( ph1 - tl1 ) / ( ph1 - tl2 ) > GCmin AND( ph1 - tl1 ) / ( ph1 - tl2 ) < GCmax;
    BearGartley = IIf( Nz( HighestSince( bearGartley4, H ) ) > Nz( ValueWhen( BearGartley4, tl2 ) ) + ( Nz( ValueWhen( BearGartley4, ph2 ) ) - Nz( ValueWhen( BearGartley4, tl2 ) ) ) * GDmin AND
                       Nz( HighestSince( bearGartley4, H ) ) < Nz( ValueWhen( BearGartley4, tl2 ) ) + ( Nz( ValueWhen( BearGartley4, ph2 ) ) - Nz( ValueWhen( BearGartley4, tl2 ) ) ) * GDMax AND
                       Nz( LowestSince( BearGartley4, L ) ) >= Nz( ValueWhen( BearGartley4, tl1 ) ) AND
                       Nz( HighestSince( BearGartley4, H ) ) > Nz( ValueWhen( BearGartley4, ph1 ) ) AND
                       Nz( BarsSince( BearGartley4 ) ) > rightStrength AND
                       Nz( pkn ) AND
                       Nz( HighestSince( BearGartley4, H ) ) == H, True, False );
}
 
if( dBat AND be )
{
    BearBat4 = PTvalid AND( ph1 - tl2 ) / ( ph2 - tl2 ) > BatBmin AND( ph1 - tl2 ) / ( ph2 - tl2 ) < BatBmax AND
               ( ph1 - tl1 ) / ( ph1 - tl2 ) > BatCmin AND( ph1 - tl1 ) / ( ph1 - tl2 ) < BatCmax;
    BearBat = IIf( Nz( HighestSince( BearBat4, H ) ) > Nz( ValueWhen( BearBat4, tl2 ) ) + ( Nz( ValueWhen( BearBat4, ph2 ) ) - Nz( ValueWhen( BearBat4, tl2 ) ) ) * BatDmin AND
                   Nz( HighestSince( BearBat4, H ) ) < Nz( ValueWhen( BearBat4, tl2 ) ) + ( Nz( ValueWhen( BearBat4, ph2 ) ) - Nz( ValueWhen( BearBat4, tl2 ) ) ) * BatDMax AND
                   Nz( LowestSince( BearBat4, L ) ) >= Nz( ValueWhen( BearBat4, tl1 ) ) AND
                   Nz( HighestSince( BearBat4, H ) ) > Nz( ValueWhen( BearBat4, ph1 ) ) AND
                   Nz( BarsSince( BearBat4 ) ) > rightStrength AND
                   Nz( pkn ) AND
                   Nz( HighestSince( BearBat4, H ) ) == H, True, False );
}
 
if( dBut AND be )
{
    BearButterfly4 = PTvalid AND( ph1 - tl2 ) / ( ph2 - tl2 ) > BtBmin AND( ph1 - tl2 ) / ( ph2 - tl2 ) < BtBmax AND
                     ( ph1 - tl1 ) / ( ph1 - tl2 ) > BtCmin AND( ph1 - tl1 ) / ( ph1 - tl2 ) < BtCmax;
    BearButterfly = IIf( Nz( HighestSince( BearButterfly4, H ) ) > Nz( ValueWhen( BearButterfly4, tl2 ) ) + ( Nz( ValueWhen( BearButterfly4, ph2 ) ) - Nz( ValueWhen( BearButterfly4, tl2 ) ) ) * BtDmin AND
                         Nz( HighestSince( BearButterfly4, H ) ) < Nz( ValueWhen( BearButterfly4, tl2 ) ) + ( Nz( ValueWhen( BearButterfly4, ph2 ) ) - Nz( ValueWhen( BearButterfly4, tl2 ) ) ) * BtDMax AND
                         Nz( LowestSince( BearButterfly4, L ) ) >= Nz( ValueWhen( BearButterfly4, tl1 ) ) AND
                         Nz( HighestSince( BearButterfly4, H ) ) > Nz( ValueWhen( BearButterfly4, ph2 ) ) AND
                         Nz( BarsSince( BearButterfly4 ) ) > rightStrength AND
                         Nz( pkn ) AND
                         Nz( HighestSince( BearButterfly4, H ) ) == H, True, False );
}
 
if( dCrab AND be )
{
    BearCrab4 = PTvalid AND( ph1 - tl2 ) / ( ph2 - tl2 ) > CBmin AND( ph1 - tl2 ) / ( ph2 - tl2 ) < CBmax AND
                ( ph1 - tl1 ) / ( ph1 - tl2 ) > CCmin AND( ph1 - tl1 ) / ( ph1 - tl2 ) < CCmax;
    BearCrab = IIf( Nz( HighestSince( BearCrab4, H ) ) > Nz( ValueWhen( BearCrab4, tl2 ) ) + ( Nz( ValueWhen( BearCrab4, ph2 ) ) - Nz( ValueWhen( BearCrab4, tl2 ) ) ) * CDmin AND
                    Nz( HighestSince( BearCrab4, H ) ) < Nz( ValueWhen( BearCrab4, tl2 ) ) + ( Nz( ValueWhen( BearCrab4, ph2 ) ) - Nz( ValueWhen( BearCrab4, tl2 ) ) ) * CDMax AND
                    Nz( LowestSince( BearCrab4, L ) ) >= Nz( ValueWhen( BearCrab4, tl1 ) ) AND
                    Nz( HighestSince( BearCrab4, H ) ) > Nz( ValueWhen( BearCrab4, ph2 ) ) AND
                    Nz( BarsSince( BearCrab4 ) ) > rightStrength AND
                    Nz( pkn ) AND
                    Nz( HighestSince( BearCrab4, H ) ) == H, True, False );
}
 
BearCrab = BearCrab AND
           IIf( Nz( ValueWhen( BearCrab4, bi ) ) >= Nz( ValueWhen( BearGartley4, bi ) ) AND
                Nz( ValueWhen( BearCrab4, bi ) ) >= Nz( ValueWhen( BearBat4, bi ) ) AND
                Nz( ValueWhen( BearCrab4, bi ) ) >= Nz( ValueWhen( BearButterfly4, bi ) ), 1, 0 );
 
BearBat = BearBat AND
          IIf( Nz( ValueWhen( BearBat4, bi ) ) >= Nz( ValueWhen( BearGartley4, bi ) ) AND
               Nz( ValueWhen( BearBat4, bi ) ) >= Nz( ValueWhen( BearCrab4, bi ) ) AND
               Nz( ValueWhen( BearBat4, bi ) ) >= Nz( ValueWhen( BearButterfly4, bi ) ), 1, 0 );
 
BearButterfly = BearButterfly AND
                IIf( Nz( ValueWhen( BearButterfly4, bi ) ) >= Nz( ValueWhen( BearGartley4, bi ) ) AND
                     Nz( ValueWhen( BearButterfly4, bi ) ) >= Nz( ValueWhen( BearCrab4, bi ) ) AND
                     Nz( ValueWhen( BearButterfly4, bi ) ) >= Nz( ValueWhen( BearBat4, bi ) ), 1, 0 );
 
BearGartley = BearGartley AND
              IIf( Nz( ValueWhen( BearGartley4, bi ) ) >= Nz( ValueWhen( BearBat4, bi ) ) AND
                   Nz( ValueWhen( BearGartley4, bi ) ) >= Nz( ValueWhen( BearCrab4, bi ) ) AND
                   Nz( ValueWhen( BearGartley4, bi ) ) >= Nz( ValueWhen( BearButterfly4, bi ) ), 1, 0 );
 
 
BearHar4 = BearGartley4 OR BearButterfly4 OR BearBat4 OR BearCrab4 ;
BearHar = BearGartley OR BearButterfly OR BearBat OR BearCrab ;
 
beXy = ValueWhen( BearHar4, ph2 );
beXx = ValueWhen( BearHar4, px2 );
beAy = ValueWhen( BearHar4, tl2 );
beAx = ValueWhen( BearHar4, tx2 );
beBy = ValueWhen( BearHar4, ph1 );
beBx = ValueWhen( BearHar4, px1 );
beCy = ValueWhen( BearHar4, tl1 );
beCx = ValueWhen( BearHar4, tx1 );
beDy = ValueWhen( BearHar, H );
beDx = ValueWhen( BearHar, bi );
 
beABdXA = ( beBy - beAy ) / ( beXy - beAy );
beBCdAB = ( beBy - beCy ) / ( beBy - beAy );
beADdXA = ( beDy - beAy ) / ( beXy - beAy );
beBCdCD = ( beDy - beCy ) / ( beBy - beCy );
 
function drawBearishPattern( i, patternName )
{
    GfxSelectSolidBrush( ColorRGB( 50, 0, 0 ) );
    GfxSetBkColor( colorBlack );
    GfxSelectPen( ColorRGB( 255, 0, 0 ), 2, 0 );
    GfxMoveTo( beXx[i], beXy[i] );
    GfxLineTo( beAx[i], beAy[i] );
    GfxMoveTo( beAx[i], beAy[i] );
    GfxLineTo( beBx[i], beBy[i] );
    GfxMoveTo( beBx[i], beBy[i] );
    GfxLineTo( beCx[i], beCy[i] );
    GfxMoveTo( beCx[i], beCy[i] );
    GfxLineTo( beDx[i], beDy[i] );
    GfxMoveTo( beXx[i], beXy[i] );
    GfxLineTo( beAx[i], beAy[i] );
 
    GfxSelectPen( ColorRGB( 255, 0, 0 ), 1, 2 );
    GfxMoveTo( beXx[i], beXy[i] );
    GfxLineTo( beBx[i], beBy[i] );
    GfxMoveTo( beAx[i], beAy[i] );
    GfxLineTo( beCx[i], beCy[i] );
    GfxMoveTo( beBx[i], beBy[i] );
    GfxLineTo( beDx[i], beDy[i] );
    GfxMoveTo( beXx[i], beXy[i] );
    GfxLineTo( beDx[i], beDy[i] );
 
    GfxPolygon( beXx[i], beXy[i], beAx[i], beAy[i], beBx[i], beBy[i], beCx[i], beCy[i], beDx[i], beDy[i], beBx[i], beBy[i], beXx[i], beXy[i] );
 
    if( showPatternName )
    {
        GfxSetTextColor( ColorRGB( 0, 0, 0 ) );
        GfxSelectFont( "Helvetica", 10, 700 );
        GfxSetBkColor( ColorRGB( 255, 0, 0 ) );
        GfxSetTextAlign( 0 | 0 );
        GfxTextOut( patternName, beCx[i] + 3, beCy[i] );
    }
 
    GfxSetTextAlign( 0 | 0 );
    GfxSetTextColor( ColorRGB( 255, 0, 0 ) );
    GfxSetBkColor( ColorRGB( 0, 0, 0 ) );
    GfxSelectFont( "Helvetica", 8, 700 );
    GfxTextOut( "" + Prec( beABdXA[i], 2 ), ( beBx[i] + beXx[i] ) / 2, ( beBy[i] + beXy[i] ) / 2 );
    GfxTextOut( "" + Prec( beBCdAB[i], 2 ), ( beCx[i] + beAx[i] ) / 2, ( beCy[i] + beAy[i] ) / 2 );
    GfxTextOut( "" + Prec( beADdXA[i], 2 ), ( beDx[i] + beXx[i] ) / 2, ( beDy[i] + beXy[i] ) / 2 );
    GfxTextOut( "" + Prec( beBCdCD[i], 2 ), ( beBx[i] + beDx[i] ) / 2, ( beBy[i] + beDy[i] ) / 2 );
 
    if( showPatternLabels )
    {
        GfxSetTextColor( ColorRGB( 0, 0, 0 ) );
        GfxSelectFont( "Helvetica", 9, 700 );
        GfxSetBkColor( ColorRGB( 255, 0, 0 ) );
        GfxSetTextAlign( 0 | 24 );
        GfxTextOut( "X", beXx[i] - 2, beXy[i] );
        GfxTextOut( "A", beAx[i] - 2, beAy[i] );
        GfxTextOut( "B", beBx[i] - 2, beBy[i] );
        GfxTextOut( "C", beCx[i] + 1, beCy[i] );
        GfxTextOut( "D", beDx[i] + 1, beDy[i] );
    }
}
 
function drawBearishPatterns()
{
    flag1 = 1;
    flag2 = 0;
    cnt = 0;
 
    for( i = lvb; i > fvb; i-- )
    {
        if( BearHar[i] AND flag1 AND cnt < nBear )
        {
            flag1 = 0;
            flag2 = 1;
            cnt = cnt + 1;
 
            if( BearButterfly[i] AND be AND dBut )
            {
                drawBearishPattern( i, "Bearish Butterfly" );
            }
 
            if( BearCrab[i] AND be AND dCrab )
            {
                drawBearishPattern( i, "Bearish Crab" );
            }
 
            if( BearBat[i] AND be AND dBat )
            {
                drawBearishPattern( i, "Bearish Bat" );
            }
 
            if( BearGartley[i] AND be AND dGart )
            {
                drawBearishPattern( i, "Bearish Gartley" );
            }
        }
 
        if( BearHar4[i] AND flag2 )
        {
            flag1 = 1;
            flag2 = 0;
        }
    }
}
drawBearishPatterns();
 
function drawPivotLabels()
{
    sz = 5;
 
    for( i = lvb; i > fvb; i-- )
    {
        {
            if( ll[i] ) PlotTextSetFont( "LL", "Arial Black", sz, i, L[i], colorBlue, colorDefault, -25 );
 
            if( hl[i] ) PlotTextSetFont( "HL", "Arial Black", sz, i, L[i], colorBlue, colorDefault, -25 );
 
            if( db[i] ) PlotTextSetFont( "DB", "Arial Black", sz, i, L[i], colorLightBlue, colorDefault, -25 );
 
            if( hh[i] ) PlotTextSetFont( "HH", "Arial Black", sz, i, H[i], colorRed, colorDefault, 20 );
 
            if( lh[i] ) PlotTextSetFont( "LH", "Arial Black", sz, i, H[i], colorRed, colorDefault, 20 );
 
            if( dt[i] ) PlotTextSetFont( "DT", "Arial Black", sz, i, H[i], colorOrange, colorDefault, 20 );
        }
    }
}
 
if( plotLabels ) drawPivotLabels();
 
if( showPatternDevelopmentPoints )
{
    if( bu )
    {
        PlotShapes( shapeDigit4 * BullHar4, colorBlue, O, H, 25 );
        PlotShapes( shapeSmallCircle * BullHar, ColorLightBlue, O, L, -10 );
    }
 
    if( be )
    {
        PlotShapes( shapeDigit4 * BearHar4, colorRed, O, L, -25 );
        PlotShapes( shapeSmallCircle * BearHar, colorOrange, O, H, 10 );
    }
}
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edakads improved code 6 for Amibroker (AFL)
