buenas. he reutilizado uno de los indicadores publicados para adaptarlo a cualquier oscilador.
De esta forma definiendo la variable osc se pueden calcular los pivots de ésta, compararlo con el precio y así ver si hay o no divergencia.

//----------------------------------------------//
//PRC_Any OSCILLATOR Divergence Indicator
//version = 0
//09.05.25
//Iván González @ www.prorealcode.com
//Sharing ProRealTime knowledge
//----------------------------------------------//
//-----Inputs-----------------------------------//
//----------------------------------------------//
src=close
lbr=5 //pivot lookback Right
lbl=5 //pivot lookback Left
rangeUpper=60 //Max lookback range
rangeLower=5 //Min lookback range
plotBull=1
plotHiddenBull=1
plotBear=1
plotHiddenBear=1
//----------------------------------------------//
//-----OSCILLATOR Calculation-------------------//
//----------------------------------------------//
len=20
bbtop=bollingerup[len](src)
bbbot=bollingerdown[len](src)
pctBol=(src-bbbot)/(bbtop-bbbot)*100

osc=pctBol
//----------------------------------------------//
//-----Pivots High and Low----------------------//
//----------------------------------------------//
//---Pivots low
if osc > osc[lbr] and lowest[lbr](osc) > osc[lbr] and osc[lbr] < lowest[lbl](osc)[lbr+1] then
$ply[z+1] = osc[lbr]
$plx[z+1] = barindex[lbr]
$pricel[z+1] = low[lbr]
drawpoint(barindex[lbr],osc[lbr],2)coloured("red",80)
z = z + 1
endif
//---Pivots high
if osc < osc[lbr] and highest[lbr](osc)<osc[lbr] and osc[lbr]>highest[lbl](osc)[lbr+1] then
$phy[t+1]=osc[lbr]
$phx[t+1]=barindex[lbr]
$priceH[t+1]=high[lbr]
drawpoint(barindex[lbr],osc[lbr],2)coloured("blue",80)
t=t+1
endif
//---Pivot detection
if z<>z[1] then
plFound=1
elsif t<>t[1] then
phFound=1
else
plFound=0
phFound=0
endif

barsPL=barssince(plFound[1])
inrangePL=rangelower<=barsPL and barsPL<=rangeupper
barsPH=barssince(pHFound[1])
inrangePH=rangelower<=barsPH and barsPH<=rangeupper

//----------------------------------------------//
//-----Regular Bullish--------------------------//
//----------------------------------------------//
oscHL=osc[lbr]>$ply[max(0,z-1)] and inrangePL
priceLL=low[lbr]<$pricel[max(0,z-1)]
bullCondAlert=priceLL and oscHL and plFound
bullCond=plotBull and bullCondalert

if plFound  and bullCond then
drawsegment($plx[max(0,z-1)],$ply[max(0,z-1)],$plx[z],$ply[z])coloured("green")style(line,2)
endif
//----------------------------------------------//
//-----Hidden Bullish---------------------------//
//----------------------------------------------//
oscLL=osc[lbr]<$ply[max(0,z-1)] and inrangePL
priceHL=low[lbr]>$pricel[max(0,z-1)]
hiddenBullCondAlert=priceHL and oscLL and plFound
hiddenBullCond=hiddenBullCondAlert and plotHiddenBull

if plFound and hiddenBullCond then
drawsegment($plx[max(0,z-1)],$ply[max(0,z-1)],$plx[z],$ply[z])coloured("green",80)style(line,2)
endif
//----------------------------------------------//
//-----Regular Bearish--------------------------//
//----------------------------------------------//
oscLH=osc[lbr]<$phy[max(0,t-1)] and inrangePH
priceHH=high[lbr]>$priceH[max(0,t-1)]
bearCondAlert=priceHH and oscLH and pHFound
bearCond=plotBear and bearCondalert

if pHFound  and bearCond then
drawsegment($phx[max(0,t-1)],$phy[max(0,t-1)],$phx[t],$phy[t])coloured("red")style(line,2)
endif
//----------------------------------------------//
//-----Hidden Bearish---------------------------//
//----------------------------------------------//
oscHH=osc[lbr]>$phy[max(0,t-1)] and inrangePH
priceLH=high[lbr]<$priceh[max(0,t-1)]
hiddenBearCondAlert=priceLH and oscHH and phFound
hiddenBearCond=hiddenBearCondAlert and plotHiddenBear

if pHFound and hiddenBearCond then
drawsegment($phx[max(0,t-1)],$phy[max(0,t-1)],$phx[t],$phy[t])coloured("red",80)style(line,2)
endif
//----------------------------------------------//
return osc as "Oscillator"coloured("blue")style(line,2)