/*  
  A TICK interpreter based on sound statistical principles.
  
  A FREE EOTPro (eotprolive.com) indicator.
*/


  function preMain() {
    
    setPriceStudy(false);
    setShowTitleParameters(true);
    
    setStudyTitle("TickMolest");
    setCursorLabelName("TICKv");
    
      var fp1 = new FunctionParameter("cutoff1",FunctionParameter.NUMBER);
      fp1.setName("cutoff one");
      fp1.setDefault(500);
      fp1.setLowerLimit(1);
      var fp2 = new FunctionParameter("cutoff2",FunctionParameter.NUMBER);
      fp2.setName("cutoff two");
      fp2.setDefault(1100);
      fp2.setLowerLimit(2);
      setDefaultBarThickness(2,0);
      setPlotType(PLOTTYPE_HISTOGRAM, 0);
}


var oldtotal = 0;
var total = 0;

function main(cutoff1,cutoff2) {

  if(getBarState() == BARSTATE_ALLBARS) {
     oldtotal= 0;
     total = 0;
  }
  
  if(getBarState() == BARSTATE_NEWBAR) {
     oldtotal = total;
  }
  
  total = 0;
  var med = (high(0) + low(0))*0.5;
  if(high(0) > cutoff1) total += (high(0) - cutoff1);
  if(low(0) < -cutoff1) total -= (-cutoff1 - low(0));
  if(med > cutoff1) total += (med - cutoff1);
  if(med < -cutoff1) total -= (-cutoff1 - med); 
  if(high(0) > cutoff2) total += 2*(high(0) - cutoff2);
  if(low(0) < -cutoff2) total -= 2*(-cutoff2 - low(0)); 
  
  return (oldtotal + 2.0*total)/3.0;  
}