ChargeAssignment.h

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int getCharge(int phi1, int phi2, int phi3, int phi4, int mode){

    int emuCharge = 0;//-1 = postive physical charge to match pdgId code(i.e. -13 is positive, anti-muon). 1 = negative physical charge
    int phidiffs[6] = {phi2 - phi1, phi3 - phi1, phi4 - phi1, phi3 - phi2, phi4 - phi4, phi4 - phi3};

    if(mode == 15 ){
         if(phidiffs[0] > 0)
             emuCharge = 1;
         else if(phidiffs[0] == 0 && phidiffs[1] < 0)
             emuCharge = 1;
         else if(phidiffs[1] == 0 && phidiffs[2] < 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 14){
         
         if(phidiffs[0] < 0)
             emuCharge = -1;
         else if(phidiffs[0] == 0 && phidiffs[1] < 0)
             emuCharge = -1;
         else
             emuCharge = 1;
     }
    
     if(mode == 13){
         if(phidiffs[0] > 0)
             emuCharge = 1;
         else if(phidiffs[0] == 0 && phidiffs[2] < 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 12){
         if(phidiffs[0] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 11){
         if(phidiffs[1] > 0)
             emuCharge = 1;
         else if(phidiffs[1] == 0 && phidiffs[2] < 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 10){
         if(phidiffs[1] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 9){
         if(phidiffs[2] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
    
     if(mode == 7){
         if(phidiffs[3] > 0)
             emuCharge = 1;
         else if(phidiffs[3] == 0 && phidiffs[4] < 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
     
     if(mode == 6){
         if(phidiffs[3] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
     
     if(mode == 5){
         if(phidiffs[4] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }
     
     if(mode == 3){
         if(phidiffs[5] > 0)
             emuCharge = 1;
         else
             emuCharge = -1;
     }

    int charge = 0;
    if(emuCharge == 1)
        charge = 1;

    return charge;

}