content: /*
  	This file is part of the OdinMS Maple Story Server
      Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
  		       Matthias Butz <matze@odinms.de>
  		       Jan Christian Meyer <vimes@odinms.de>
  
      This program is free software: you can redistribute it and/or modify
      it under the terms of the GNU Affero General Public License as
      published by the Free Software Foundation version 3 as published by
      the Free Software Foundation. You may not use, modify or distribute
      this program under any other version of the GNU Affero General Public
      License.
  
      This program 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 Affero General Public License for more details.
  
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
  package server.maps;
  
  import java.awt.Point;
  
  /**
   * 
   * @author Matze
   */
  public class MapleFoothold implements Comparable<MapleFoothold> {
      private Point p1;
      private Point p2;
      private int id;
      private int next, prev;
  
      public MapleFoothold(Point p1, Point p2, int id) {
          this.p1 = p1;
          this.p2 = p2;
          this.id = id;
      }
  
      public boolean isWall() {
          return p1.x == p2.x;
      }
  
      public int getX1() {
          return p1.x;
      }
  
      public int getX2() {
          return p2.x;
      }
  
      public int getY1() {
          return p1.y;
      }
  
      public int getY2() {
          return p2.y;
      }    
      
      // XXX may need more precision
      public int calculateFooting(int x) {
          if (p1.y == p2.y) {
              return p2.y; // y at both ends is the same
          }
          int slope = (p1.y - p2.y) / (p1.x - p2.x);
          int intercept = p1.y - (slope * p1.x);
          return (slope * x) + intercept;
      }
  
      @Override
      public int compareTo(MapleFoothold o) {
          MapleFoothold other = o;
          if (p2.y < other.getY1()) {
              return -1;
          } else if (p1.y > other.getY2()) {
              return 1;
          } else {
              return 0;
          }
      }
  
      public int getId() {
          return id;
      }
  
      public int getNext() {
          return next;
      }
  
      public void setNext(int next) {
          this.next = next;
      }
  
      public int getPrev() {
          return prev;
      }
  
      public void setPrev(int prev) {
          this.prev = prev;
      }
  }
  