Destek, Direnc ve Trend (Pivot Bazli, min 3 bar)

14 jam lalu

//version=6
indicator('Destek, Direnc ve Trend (Pivot Bazli, min 3 bar)', overlay = true)

//--------------------------------------------------------------------
// 1) KULLANICI AYARLARI (INPUT)
//--------------------------------------------------------------------
pivotLen = input.int(3, 'Pivot Uzunlugu (min 3)', minval = 1)
showTrend = input.bool(true, 'Trend Cizgisi Goster?')
showSR = input.bool(true, 'Destek-Direnc Cizgisi Goster?')

//--------------------------------------------------------------------
// 2) PIVOT HESAPLARI
//--------------------------------------------------------------------
// Bir barin pivot high (zirve) olabilmesi icin:
// - Son pivotLen barin ve gelecek pivotLen barin en yuksek degerinden yuksek olmali
// pivotH = bar_index - pivotLen'deki high, en yuksekse true
//
// pivotLow icin ise en dusuk olmali
// Bu kodda Pine'in built-in fonksiyonlarindaki mantigi taklit ediyoruz.

pivotH = high[pivotLen] == ta.highest(high, pivotLen * 2 + 1)
pivotL = low[pivotLen] == ta.lowest(low, pivotLen * 2 + 1)

//--------------------------------------------------------------------
// 3) DIZILER: PIVOT BILGILERINI SAKLA
//--------------------------------------------------------------------
var pivotHighBars = array.new_int()
var pivotHighVals = array.new_float()
var pivotLowBars = array.new_int()
var pivotLowVals = array.new_float()

//--------------------------------------------------------------------
// 4) PIVOTLARI TESPIT VE DIZILERE EKLE
//--------------------------------------------------------------------
if barstate.isconfirmed
if pivotH
array.push(pivotHighBars, bar_index - pivotLen)
array.push(pivotHighVals, high[pivotLen])
if pivotL
array.push(pivotLowBars, bar_index - pivotLen)
array.push(pivotLowVals, low[pivotLen])

// Dizi boyutu cok buyumesin diye 20'den fazlasi varsa en eskileri sil
if array.size(pivotHighBars) > 20
array.shift(pivotHighBars)
array.shift(pivotHighVals)
if array.size(pivotLowBars) > 20
array.shift(pivotLowBars)
array.shift(pivotLowVals)

//--------------------------------------------------------------------
// 5) LINE REFERANSLARI TANIMLA (var line ... = na)
//--------------------------------------------------------------------
var line srLineHigh = na
var line srLineLow = na
var line trendLineHi = na
var line trendLineLo = na

//--------------------------------------------------------------------
// 6) DESTEK - DIRENC CIZGILERI
//--------------------------------------------------------------------
// Son 2 pivot high'i birlestir -> Direnc
// Son 2 pivot low'u birlestir -> Destek

if showSR
// a) Direnc
if array.size(pivotHighBars) >= 2
// Son 2 pivot high verilerini cek
bh1 = array.get(pivotHighBars, array.size(pivotHighBars) - 1)
ph1 = array.get(pivotHighVals, array.size(pivotHighVals) - 1)
bh2 = array.get(pivotHighBars, array.size(pivotHighBars) - 2)
ph2 = array.get(pivotHighVals, array.size(pivotHighVals) - 2)

// Eger eski line varsa sil
if not na(srLineHigh)
line.delete(srLineHigh)


// Yeni direnc line'i olustur
srLineHigh := line.new(x1 = bh2, y1 = ph2, x2 = bh1, y2 = ph1, extend = extend.right, color = color.red, width = 2)
srLineHigh

// b) Destek
if array.size(pivotLowBars) >= 2
bl1 = array.get(pivotLowBars, array.size(pivotLowBars) - 1)
pl1 = array.get(pivotLowVals, array.size(pivotLowVals) - 1)
bl2 = array.get(pivotLowBars, array.size(pivotLowBars) - 2)
pl2 = array.get(pivotLowVals, array.size(pivotLowVals) - 2)

if not na(srLineLow)
line.delete(srLineLow)


srLineLow := line.new(x1 = bl2, y1 = pl2, x2 = bl1, y2 = pl1, extend = extend.right, color = color.lime, width = 2)
srLineLow

//--------------------------------------------------------------------
// 7) TREND CIZGILERI
//--------------------------------------------------------------------
// Basit mantik:
// - 3 pivot high ardisik olarak asagidaki gibi siralandiysa dusen trend
// - 3 pivot low ardisik olarak asagidaki gibi siralandiysa yukselen trend

if showTrend
// a) Dusen trend icin pivot high kontrolu
if array.size(pivotHighVals) >= 3
ph1 = array.get(pivotHighVals, array.size(pivotHighVals) - 1)
ph2 = array.get(pivotHighVals, array.size(pivotHighVals) - 2)
ph3 = array.get(pivotHighVals, array.size(pivotHighVals) - 3)

bh1 = array.get(pivotHighBars, array.size(pivotHighBars) - 1)
bh2 = array.get(pivotHighBars, array.size(pivotHighBars) - 2)
bh3 = array.get(pivotHighBars, array.size(pivotHighBars) - 3)

// Eger ph1 < ph2 < ph3 ise dusen siralama
if ph1 < ph2 and ph2 < ph3
// Eski trend line varsa sil
if not na(trendLineHi)
line.delete(trendLineHi)
// Yeni line
trendLineHi := line.new(x1 = bh3, y1 = ph3, x2 = bh1, y2 = ph1, extend = extend.right, color = color.new(color.red, 0), width = 2)
trendLineHi

// b) Yukselen trend icin pivot low kontrolu
if array.size(pivotLowVals) >= 3
pl1 = array.get(pivotLowVals, array.size(pivotLowVals) - 1)
pl2 = array.get(pivotLowVals, array.size(pivotLowVals) - 2)
pl3 = array.get(pivotLowVals, array.size(pivotLowVals) - 3)

bl1 = array.get(pivotLowBars, array.size(pivotLowBars) - 1)
bl2 = array.get(pivotLowBars, array.size(pivotLowBars) - 2)
bl3 = array.get(pivotLowBars, array.size(pivotLowBars) - 3)

// pl1 > pl2 > pl3 ise yukselen siralama
if pl1 > pl2 and pl2 > pl3
if not na(trendLineLo)
line.delete(trendLineLo)
trendLineLo := line.new(x1 = bl3, y1 = pl3, x2 = bl1, y2 = pl1, extend = extend.right, color = color.new(color.lime, 0), width = 2)
trendLineLo

//--------------------------------------------------------------------
// ACIKLAMA
//--------------------------------------------------------------------
// - pivotLen = 3, en az 3 bar (mum) dokunarak pivot olusumunu bekler.
// - Kod, bar kapanisi (barstate.isconfirmed) ile pivot tespit eder,
// pivotlari dizilerde saklar, son 2 pivot ile destek/direnc,
// son 3 pivot ile trend cizgileri olusturur.
// - "Line" referanslarini var line ... = na seklinde tanimladik,
// her if blogunda != na kontrolu yaparak silip yeniden olusturuyoruz.
// - Girinti (indentation) kurallari Pine Script’e uyumludur.