// Last edited on 2000-09-01 04:49:06 by stolfi

import java.awt.Rectangle;
import java.util.Vector;
import java.lang.Math;
import Ponto;
import Retangulo;
import Trecho;
import Servico;
import Esquina;
import Planta;

public class LocalizadorImpl extends Localizador
  {
    private Planta planta;
    
    public LocalizadorImpl(Planta pl)
      { this.planta = pl; }
    
    public Trecho trechoMaisProximo(Ponto p)
      { Trecho[] t = planta.trechos();
        Trecho minTrecho = null;
        double minDist = Double.MAX_VALUE;
        for (int i = 0; i < t.length; i++)
          { double dist = t[i].distancia(p);
            if (dist < minDist)
              { minDist = dist; minTrecho = t[i]; }
          }
        return(minTrecho);
      }

    public Servico servicoMaisProximo(Ponto p)
      { Servico[] s = planta.servicos();
        Servico minServico = null;
        double minDist = Double.MAX_VALUE;
        for (int i = 0; i < s.length; i++)
          { double dist = s[i].distancia(p);
            if (dist < minDist)
              { minDist = dist; minServico = s[i]; }
          }
        return(minServico);
      }

    public Trecho[] todosTrechosDentro(Retangulo r) 
      { Trecho[] t = planta.trechos();
        Vector v = new Vector();
        for (int i = 0; i < t.length; i++)
          { if (t[i].intercepta(r)) { v.addElement(t[i]); } }
        int n = v.size();
        Trecho[] ret = new Trecho[n];
        for (int i = 0; i < n; i++) { ret[i] = (Trecho) v.elementAt(i); }
        return ret;
      }

    public Servico[] todosServicosDentro(Retangulo r)
      { Servico[] s = planta.servicos();
        Vector v = new Vector();
        for (int i = 0; i < s.length; i++)
          { if (s[i].intercepta(r)) { v.addElement(s[i]); } }
        int n = v.size();
        Servico[] ret = new Servico[n];
        for (int i = 0; i < n; i++) { ret[i] = (Servico) v.elementAt(i); }
        return ret;
      }
      
    public Esquina[] todasEsquinasDentro(Retangulo r)
      { Esquina[] e = planta.esquinas();
        Vector v = new Vector();
        for (int i = 0; i < e.length; i++)
          { if (e[i].intercepta(r)) { v.addElement(e[i]); } }
        int n = v.size();
        Esquina[] ret = new Esquina[n];
        for (int i = 0; i < n; i++) { ret[i] = (Esquina) v.elementAt(i); }
        return ret;
      }
      
  }