src/PotentialInitiationSite2.java
/**
     * When a PotentialIS changes state from potential to active,
     * this method updates the linkages among the active states
    * @param lastActivePIS
     */
When a PotentialIS changes state from potential to active,
this method updates the linkages among the active states
@param lastActivePIS
When a PotentialIS changes state from potential to active this method updates the linkages among the active states @param lastActivePIS
void updateLinkagesToAdd (PotentialInitiationSite2 lastActivePIS) {
       leftActivePIS = lastActivePIS;
       rightActivePIS = lastActivePIS.getRightActivePIS();
       lastActivePIS.getRightActivePIS().setLeftActivePIS(this);
       lastActivePIS.setRightActivePIS(this);
   }
void updateLinkagesToAdd ( PotentialInitiationSite2 lastActivePIS ) { leftActivePIS = lastActivePIS ; rightActivePIS = lastActivePIS . getRightActivePIS ( ) ; lastActivePIS . getRightActivePIS ( ) . setLeftActivePIS ( this ) ; lastActivePIS . setRightActivePIS ( this ) ; }
When a PotentialIS changes state from potential to active,
 this method updates the linkages among the active states
 @param lastActivePIS
When a PotentialIS changes state from potential to active this method updates the linkages among the active states @param lastActivePIS