CONVERT A TRADINDVIEW INDICATOR TO MQL4

HELLO GUYS, 

I WOULD LIKE TO CONVERT THE EASY TRADINGVIEW "TRENDALERT" BY RSTRAAT TO A MT4 INDICATOR. 

//@version=2

study("TrendAlert", overlay=false)

// Trend and direction determination Step 1 en Step 2 method conform ZoneRecovery from 4x-dat.com Joseph Nemeth 

// https://www.youtube.com/watch?v=YxDAYtlQjBM

// step 1 LongTerm timefram/resolution (LT) determine general direction 

//• color last Heikenahsi bar gives is the general direction 

// step 2 MidTerm timeframe/resolution determine trend

//• color last Heikenahsi bar must match Direction step 1 and

//• slope of 20EMA in direction step 1 and 

//• price relation to EMA20: above = up, below=down 

// Step 1 AND step 2 => TrendAlert (-1 for Short, 1 for Long, 0 for No trend)

//Heiken Ashi Candles

data = heikenashi(tickerid)

resLT = input(title="Res LT", type=resolution, defval="D")

resMT = input(title="Res MT", type=resolution, defval="240")

LTo = security(data, resLT, open)

LTc = security(data, resLT, close)

MTo = security(data, resMT, open)

MTc = security(data, resMT, close)

LTlong = LTc > LTo 

LTshort = LTc < LTo 

MTema20 = ema(MTc,20)

MTema20delta= change(MTema20)

MTlong = MTc > MTo and MTc > MTema20 and MTema20delta > 0

MTshort = MTc < MTo and MTc < MTema20 and MTema20delta < 0

Long = MTlong and LTlong

Short = MTshort and LTshort

plot(Long ? 1 : Short ? -1: 0, title="TrendAlert", color= Long ? lime : Short ? red : gray, style=columns )