Order Block Finder

//version=5
indicator("Order Block Finder", overlay=true)

// Input settings
blockLookback = input(20, title="Lookback Period")
minBlockSize = input(5, title="Minimum Block Size (Pips)") * syminfo.mintick
maxBlockAge = input(50, title="Maximum Block Age (Bars)")
combineCloseBlocks = input(true, title="Combine Close Blocks")

topSwingHigh = ta.highest(high, blockLookback)
topSwingLow = ta.lowest(low, blockLookback)

// Identifying Order Blocks
bullishBlock = ta.crossover(close, topSwingLow)
bearishBlock = ta.crossunder(close, topSwingHigh)

var float blockHigh = na
var float blockLow = na
var int blockAge = 0

if bullishBlock
blockHigh := high
blockLow := low
blockAge := 0

if bearishBlock
blockHigh := high
blockLow := low
blockAge := 0

blockAge := blockAge + 1
validBlock = blockAge < maxBlockAge

// Display Order Blocks
blockColor = bullishBlock ? color.green : bearishBlock ? color.red : na
if validBlock and not na(blockHigh) and not na(blockLow)
bgColor = color.new(blockColor, 80)
box.new(left=bar_index, right=bar_index + maxBlockAge, top=blockHigh, bottom=blockLow, border_color=blockColor, bgcolor=bgColor)

// Display Block Information Label
if validBlock
label.new(x=bar_index, y=blockHigh, text="Order Block", color=blockColor, textcolor=color.white, style=label.style_label_down)