code: /*
   *This file is part of AdmissibleFPG.
   *
   * Copyright (C) 2014 William Pettersson <william@ewpettersson.se>
   *
   *    AdmissibleFPG is free software: you can redistribute it and/or modify
   *    it under the terms of the GNU General Public License as published by
   *    the Free Software Foundation, either version 3 of the License, or
   *    (at your option) any later version.
   *
   *    AdmissibleFPG is distributed in the hope that it will be useful,
   *    but WITHOUT ANY WARRANTY; without even the implied warranty of
   *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *    GNU General Public License for more details.
   *
   *    You should have received a copy of the GNU General Public License
   *    along with AdmissibleFPG.  If not, see <http://www.gnu.org/licenses/>.
   */
  package se.ewpettersson.admissiblefpg.fpg;
  
  public class Arc {
  	public Arc(int t1, int t2) {
  		this.t1 = t1;
  		this.t2 = t2;
  	}
  
  	public int t1,t2,f1,f2;
  
  	public boolean isLoop() {
  		return t1==t2;
  	}
  	
  	public String toString() {
  		String s = "["+t1+", "+t2+"]";
  		return s;
  	}
  	
  	public boolean parallel(Arc a) {
  		return (((t1 == a.t1)&&(t2 == a.t2))||((t1 == a.t2)&&(t2 == a.t1))) ;
  	}
  
  	public void setF1(Integer f1) {
  		this.f1 = f1;
  	}
  	public void setF2(Integer f2) {
  		this.f2 = f2;
  	}
  }
  