This indicator add a trend line on chart accordingly to the CCI value. It also painting background charts to identify bearish and bullish trend.

// CCI Magic DID V1                        


cc = customclose

if (CCI[p](typicalPrice)>=0) then
magic=Low[0]-AverageTrueRange[p1](close)
endif
if (CCI[p](typicalPrice)<0) then
magic=High[0]+AverageTrueRange[p1](close)
endif
if (CCI[p](typicalPrice)>=0 and magic<magic[1]) then
magic=magic[1]
endif
if (CCI[50](typicalPrice)<0 and magic>magic[1]) then
magic=magic[1]
endif
hh = magic + coeff
bb = magic - coeff
////////////////////////////////////////////////
if cc > hh then
backgroundcolor(0,139,0)   // vert foncé
endif
if cc > magic and cc < hh then
backgroundcolor(0,255,0)   // vert clair
endif
if cc < magic  and cc > bb then
backgroundcolor(255,0,255)   // rose clair
endif
if cc  < bb then
backgroundcolor(238,44,44) // rouge
endif
////////////////////////////////////////////////
return cc as " cc " ,  magic as " magic " , hh as " hh " , bb as " bb "

// Variables :

// p = 50 = periode CCI par défaut  
// p1 = 5 = periode ATR par défaut 
// coeff = 1 decimal