/******************************************************************************************
Copyright © eSignal, a division of Interactive Data Corporation. 2005. All rights reserved.
This sample eSignal Formula Script (EFS) may be modified and saved under a new filename;   
however, eSignal is no longer responsible for the functionality once modified.             
eSignal reserves the right to modify and overwrite this EFS file with each new release.    
@version 3.0 by Alexis Montenegro for eSignal                                              
*******************************************************************************************/

function preMain() {
	setPriceStudy(true);
	setStudyTitle("Pivot Points");
	setCursorLabelName("PP-R2", 0);
	setCursorLabelName("PP-R1", 1);
	setCursorLabelName("PP", 2);
	setCursorLabelName("PP-S1", 3);
	setCursorLabelName("PP-S2", 4);
	// R2
	setDefaultBarStyle(PS_DASH, 0);
	setDefaultBarFgColor(Color.RGB(255,0,0), 0);
	setDefaultBarThickness(2, 0);
	// R1
	setDefaultBarStyle(PS_DOT, 1);
	setDefaultBarFgColor(Color.RGB(0,0,255), 1);
	setDefaultBarThickness(1, 1);   
    // Pivot  Point
	setDefaultBarStyle(PS_SOLID, 2);
	setDefaultBarFgColor(Color.RGB(251,147,147), 2);
	setDefaultBarThickness(1, 2);
    // S1
	setDefaultBarStyle(PS_DOT, 3);
	setDefaultBarFgColor(Color.RGB(0,0,255), 3);
	setDefaultBarThickness(1, 3);
	// S2
	setDefaultBarStyle(PS_DASH, 4);
	setDefaultBarFgColor(Color.RGB(255,0,0), 4);
	setDefaultBarThickness(2, 4);
}

var bInit = false;
var xHigh  = null;
var xLow   = null;
var xClose = null; 
var vPP = null;
var vR1 = null;
var vS1 = null;
var vR2 = null;
var vS2 = null;  

function main() {

    if(isMonthly() || isWeekly())
    return;
    
    if(bInit == false){
        xHigh  = high(inv("D"));
        xLow   = low(inv("D"));
        xClose = close(inv("D")); 
        bInit = true;
    }
    
    var vHigh  = xHigh.getValue(-1);
    var vLow   = xLow.getValue(-1);
    var vClose = xClose.getValue(-1); 
    if(vHigh == null || vLow == null || vClose == null)
    return;
    
    vPP = (vHigh+vLow+vClose)/3;
    vR1 = 2*vPP-vLow;
    vS1 = 2*vPP-vHigh;
    vR2 = (vPP-vS1)+vR1;
    vS2 = vPP-(vR1-vS1);  
    
    return new Array(vR2, vR1, vPP, vS1, vS2);
}