Previous Session Range + Projected Candles + BOS/CHOCH Protected

indicator("Previous Session Range + Projected Candles + BOS/CHOCH Protected", overlay=true,
     max_boxes_count=150, max_lines_count=300, max_labels_count=300)

grpSession = "Session Source"
sessionTZ = input.string("America/New_York", "Session Timezone", group=grpSession)
activeSession = input.session("0100-1659", "Active Daily Session", group=grpSession)

grpRange = "Previous Session Range Box"
showPrevRangeBox = input.bool(true, "Show Previous Session Range Box", group=grpRange)
boxColor  = input.color(color.purple, "Range Box Color", group=grpRange)
boxTransp = input.int(85, "Box Transparency", minval=0, maxval=100, group=grpRange)
midColor  = input.color(color.white, "50% Midline Color", group=grpRange)

grpProj = "Projected Candles"
showProjectedCandles = input.bool(true, "Show Previous + Active Session Candles", group=grpProj)
projOffset = input.int(10, "Projection Offset", minval=2, maxval=100, group=grpProj)
candleWidth = input.int(4, "Projected Candle Width", minval=2, maxval=20, group=grpProj)
candleGap = input.int(7, "Gap Between Projected Candles", minval=3, maxval=50, group=grpProj)
projBullColor = input.color(color.new(color.green, 25), "Bull Candle Color", group=grpProj)
projBearColor = input.color(color.new(color.red, 25), "Bear Candle Color", group=grpProj)
wickColor = input.color(color.gray, "Wick Color", group=grpProj)
wickWidth = input.int(2, "Wick Width", minval=1, maxval=5, group=grpProj)
openLineColor = input.color(color.yellow, "Open Line Color", group=grpProj)
openLineWidth = input.int(2, "Open Line Width", minval=1, maxval=5, group=grpProj)
showProjectionLabels = input.bool(true, "Show Projection Labels", group=grpProj)

grpMS = "Market Structure BOS / CHOCH"
showMS = input.bool(true, "Show BOS / CHOCH", group=grpMS)
swingLen = input.int(5, "Swing Length", minval=2, maxval=50, group=grpMS)
breakMinTicks = input.int(0, "Break Buffer Ticks", minval=0, maxval=50, group=grpMS)
stateOnClose = input.bool(true, "Confirm Structure On Close", group=grpMS)
showMSLabels = input.bool(true, "Show BOS / CHOCH Labels", group=grpMS)
maxMS = input.int(50, "Max Structure Lines", minval=5, maxval=200, group=grpMS)

grpDisp = "Displacement Filter"
useDisplacementBOS = input.bool(false, "Require Displacement For BOS/CHOCH", group=grpDisp)
atrLen = input.int(14, "ATR Length", minval=1, maxval=100, group=grpDisp)
dispAtrMult = input.float(0.75, "Body ≥ ATR ×", minval=0.1, maxval=5.0, step=0.05, group=grpDisp)
dispBodyPctMin = input.float(0.50, "Min Body % Of Range", minval=0.05, maxval=1.0, step=0.05, group=grpDisp)

grpProt = "Protected High / Low"
showProtected = input.bool(true, "Show Protected Level", group=grpProt)
invalidateOnClose = input.bool(true, "Invalidate Protected Level On Close", group=grpProt)

grpColors = "Market Structure Colors"
bullStructColor = input.color(color.lime, "Bull BOS/CHOCH Color", group=grpColors)
bearStructColor = input.color(color.red, "Bear BOS/CHOCH Color", group=grpColors)
protectedBullColor = input.color(color.new(color.lime, 0), "Protected Low Color", group=grpColors)
protectedBearColor = input.color(color.new(color.red, 0), "Protected High Color", group=grpColors)

inSession = not na(time(timeframe.period, activeSession, sessionTZ))
newSession = inSession and not inSession[1]

var float[] sO = array.new_float()
var float[] sH = array.new_float()
var float[] sL = array.new_float()
var float[] sC = array.new_float()
var int[]   sStart = array.new_int()

f_update_session_candle() =>
    if newSession or barstate.isfirst
        array.unshift(sO, open)
        array.unshift(sH, high)
        array.unshift(sL, low)
        array.unshift(sC, close)
        array.unshift(sStart, bar_index)

        if array.size(sO) > 5
            array.pop(sO)
            array.pop(sH)
            array.pop(sL)
            array.pop(sC)
            array.pop(sStart)

    else if inSession and array.size(sO) > 0
        array.set(sH, 0, math.max(array.get(sH, 0), high))
        array.set(sL, 0, math.min(array.get(sL, 0), low))
        array.set(sC, 0, close)

    0

f_update_session_candle()

hasActive = array.size(sO) > 0
hasPrev   = array.size(sO) > 1

activeO = hasActive ? array.get(sO, 0) : na
activeH = hasActive ? array.get(sH, 0) : na
activeL = hasActive ? array.get(sL, 0) : na
activeC = hasActive ? array.get(sC, 0) : na
activeStart = hasActive ? array.get(sStart, 0) : na

prevO = hasPrev ? array.get(sO, 1) : na
prevH = hasPrev ? array.get(sH, 1) : na
prevL = hasPrev ? array.get(sL, 1) : na
prevC = hasPrev ? array.get(sC, 1) : na
prevStart = hasPrev ? array.get(sStart, 1) : na

prevMid = hasPrev ? (prevH + prevL) / 2.0 : na
prevRange = hasPrev ? prevH - prevL : na
validPrev = hasPrev and not na(prevRange) and prevRange > 0

var box rangeBox = na
var line midLine = na

if showPrevRangeBox and validPrev and inSession
    if newSession or na(rangeBox)
        if not na(rangeBox)
            box.delete(rangeBox)
        if not na(midLine)
            line.delete(midLine)

        rangeBox := box.new(
             left=activeStart,
             top=prevH,
             right=bar_index,
             bottom=prevL,
             bgcolor=color.new(boxColor, boxTransp),
             border_color=color.new(boxColor, 20))

        midLine := line.new(
             x1=activeStart,
             y1=prevMid,
             x2=bar_index,
             y2=prevMid,
             color=midColor,
             style=line.style_dashed,
             width=1)
    else
        box.set_left(rangeBox, activeStart)
        box.set_right(rangeBox, bar_index)
        box.set_top(rangeBox, prevH)
        box.set_bottom(rangeBox, prevL)

        line.set_x1(midLine, activeStart)
        line.set_x2(midLine, bar_index)
        line.set_y1(midLine, prevMid)
        line.set_y2(midLine, prevMid)
else
    if not showPrevRangeBox
        if not na(rangeBox)
            box.delete(rangeBox)
            rangeBox := na
        if not na(midLine)
            line.delete(midLine)
            midLine := na

var box[] projBodies = array.new_box()
var line[] projWicks = array.new_line()
var line[] projOpens = array.new_line()
var label[] projLabels = array.new_label()

f_clear_projection() =>
    for bx in projBodies
        box.delete(bx)
    for ln in projWicks
        line.delete(ln)
    for ln in projOpens
        line.delete(ln)
    for lb in projLabels
        label.delete(lb)

    array.clear(projBodies)
    array.clear(projWicks)
    array.clear(projOpens)
    array.clear(projLabels)

f_draw_projected_candle(float o, float h, float l, float c, int startBar, int x1, string txt) =>
    int x2 = x1 + candleWidth
    int xm = math.round((x1 + x2) / 2)

    color baseColor = c >= o ? projBullColor : projBearColor

    box bodyBox = box.new(
         left=x1,
         top=math.max(o, c),
         right=x2,
         bottom=math.min(o, c),
         bgcolor=baseColor,
         border_color=color.new(baseColor, 0))

    line wick = line.new(
         x1=xm,
         y1=h,
         x2=xm,
         y2=l,
         color=wickColor,
         width=wickWidth)

    int safeStart = math.max(startBar, bar_index - 299)

    line openLine = line.new(
         x1=safeStart,
         y1=o,
         x2=x1,
         y2=o,
         color=openLineColor,
        

Показано первые 50% кода (символов: 11078)