贪吃蛇代码

贪吃蛇代码 package day14worm; public class Node { private int i; private int j; public Node(){ } public Node(int i, int j) { super(); this.i = i; this.j = j; } public int getI() { return i; } public void setI(int i) { this.i = i; } public int getJ() { return j; } public void setJ(int j) { this.j = j; } @Override public boolean equals(Object obj) { // TODO Auto-generated method stub if(obj==null) return false; if(this==obj) return true; if(obj instanceof Node){ Node other=(Node) obj; return i==other.i&&j==other.j; } return false; } @Override public int hashCode() { // TODO Auto-generated method stub return i*10000+j; } @Override public String toString() { // TODO Auto-generated method stub return "#"; } package day14worm; import java.util.ArrayList; import java.util.Arrays; import java.util.List; public class Worm { private List body=new ArrayList();//表示线性表中全是Node类型; // i //j public static final int UP=-10; //0 -1 public static final int DOWN=10; //0 1 public static final int LEFT=-1; public static final int RIGHT=1; private int dir; public Worm(){ } public Worm(Node[] nodes,int dir){ List list=Arrays.asList(nodes); body.addAll(list); this.dir=dir; } //走一步 public void step(){ Node head=body.get(0); int i=head.getI()+dir/10; int j=head.getJ()+dir%10; Node newHead=new Node(i,j); body.add(0,newHead); if(eatSomething()){ return; } body.remove(body.size()-1); } private boolean eatSomething(){ return false; } public void step(int dir){ if(this.dir+dir==0){ throw new IllegalArgumentException("方向错误"); } this.dir=dir; step(); } public boolean contains(int i,int j){ for(int idx=0;idx