Smart Money Liquidity Heatmap [AlgoAlpha]

// This Pine Script™ code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © AlgoAlpha

//@version=5
indicator(title="Smart Money Liquidity Heatmap [AlgoAlpha]", shorttitle="AlgoAlpha - 🗺️Smart Money Heatmap", overlay = true, max_lines_count = 500, max_boxes_count = 500)

x = input.int(25, "Index Period", minval = 1, group = "Calculation Settings")
rr = input.int(14, "Volume Flow Period", minval = 1, group = "Calculation Settings")
peakslen = input.int(500, "Normalization Period", minval = 1, group = "Calculation Settings")
thr = input.float(0.85, "High Interest Threshold", minval = 0.01, maxval = 0.99, group = "Calculation Settings")

green = input.color(#00ffbb, "Heatmap Colour", group = "Appearance")
baset = input.int(99, "Base Transparency", minval = 1, group = "Appearance")
dumb = ta.pvi-ta.ema(ta.pvi,255)
smart = ta.nvi-ta.ema(ta.nvi,255)
drsi = ta.rsi(dumb, rr)
srsi = ta.rsi(smart, rr)
r = srsi/drsi //ratio shows if smart money is buying from dumb money selling and vice versa
sums = math.sum(r, x)
peak = ta.highest(sums, peakslen)
index = sums/peak

// Calculating
candledir = close > open ? 1 : -1
candlelen = math.abs(close-open)

valleyform = index > thr

max_memory = 90

type bar
    float h = high
    float l = low
    float v = volume
    int   i = bar_index

//-----------------------------------------------------------------------------}
// Variables
//-----------------------------------------------------------------------------{

bar b = bar.new()

var hh = 0.0
var ll = 0.0
var aR = array.new_box()
var aS = array.new_line()

if valleyform
    aR.push(box.new(bar_index,high,bar_index, low, color.new(green, 100), 1, line.style_solid, extend.right, bgcolor = color.new(green, baset)))