HARSI + Divergences

// All credit to © //Author=JayRogers & VuManChu Cipher B for their original Scripts (Open Source)

/ ====== ABOUT THIS INDICATOR
// I've combined some part of the code of the following indicators to get some alerts based on the Idea and Use section below :
// - RSI based Heikin Ashi candle oscillator
// - Divergence based on the VuManChu Cipher B
//
// ====== ARTICLES and FURTHER READING
//
// - investopedia.com/terms/h/heikinashi.asp
//
// "Heikin-Ashi is a candlestick pattern technique that aims to reduce
// some of the market noise, creating a chart that highlights trend
// direction better than typical candlestick charts"
//
// ====== IDEA AND USE
// - The use of the HA RSI indicator when in the OverSold and OverBought
// area combined to a Divergence & a OB/OS buy/sell
// on the Cipher B by VuManChu.
// Can be useful as a confluence at S/R levels.
// *** Tip = 1 minute timeframe seems to work the best on FOREX
//
// *** Alerts :
// - The Divergence alert needs 2 bar to calculate,
// so alerts and dots as well, it will be placed on the right spot on
// the chart as per the offset added.
// - Use "Once Per Bar" for the alert, not per bar close, or you would
// have 1 extra bar delay
//
// ** Contributions : Remodel some part of the original script in order to get :
// --> Total conditions for an alert and a dot to display, resumed :
// - Buy/Sell in OB/OS
// - Divergence Buy/Sell
// - RSI Overlay is in OB/OS on current bar (or was the bar before)
// when both Buy/Sell dots from VMC appears.
//
// ====== DISCLAIMER
// For Tradingview & Pinescript moderators =
// This follow a strategy where RSI Overlay from JayRogers script shall be
// in OB/OS zone, while combining it with the VuManChu Cipher B Divergences
// Buy&Sell + Buy/sell alerts In OB/OS areas.
// Any trade decisions you make are entirely your own responsibility.
//
// Thanks to dynausmaux for the code
// Thanks to falconCoin for