package cn.tcc.snake.antition;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Set;
import cn.tcc.snake.listener.SnakeListener;
import cn.tcc.snake.util.Global;
public class Sanke {
public static final int UP = -1;
public static final int DOWN =1;
public static final int LEFT=2;
public static final int RIGHT=-2;
private int oldDirection,newDirection;
private LinkedList<Point> body = new LinkedList<Point>();
private Set<SnakeListener> Listeners = new HashSet<SnakeListener>(); // 监听器
private Point oldTail;
private boolean life;
public void die(){
life = false;
}
public Sanke(){
init();
}
public void init(){
int x = Global.WIDTH / 2;
int y = Global.HEIGHT /2;
for(int i=0;i<10;i++){
body.addLast(new Point(x--,y));
}
newDirection=oldDirection = RIGHT;
life = true;
}
public void Move(){
System.out.println("Snake Move");
if(!(oldDirection+newDirection==0)){
oldDirection = newDirection;
}
//去尾
oldTail=body.removeLast();
int x = body.getFirst().x;
int y = body.getFirst().y;
switch (oldDirection) {
case UP:
y--;
if(y < 0){
y=Global.HEIGHT-1;
}
break;
case DOWN:
y++;
if(y >= Global.HEIGHT){
y=0;
}
break;
case LEFT:
x--;
if(x<0){
x=Global.WIDTH-1;
}
break;
case RIGHT:
x++;
if(x>=Global.WIDTH){
x=0;
}
break;
}
Point newHead = new Point(x,y);
//加头
body.addFirst(newHead);
}
public void changDirection(int direction){
System.out.println("Snake changDirection");
newDirection = direction;
}
public void eatFood(){
body.addLast(oldTail);
System.out.println("Snake eatFood");
}
public boolean isEatBody(){
System.out.println("Snake EatBody");
for(int i=1;i<body.size();i++){
if(body.get(i).equals(this.getHead())){
return true;
}
}
return false;
}
public void drawMe(Graphics g){
g.setColor(Color.BLUE);
for(Point p: body){
g.fill3DRect(p.x*Global.CELL_SIZE, p.y*Global.CELL_SIZE,Global.CELL_SIZE,Global.CELL_SIZE, true);
}
System.out.println("snake drawme");
}
public Point getHead(){
return body.getFirst();
}
public class SnakeDriver implements Runnable{
@Override
public void run() {
while(life){
Move();
for(SnakeListener l: Listeners){
l.SnakeMoved(Sanke.this);
}
try {
Thread.sleep(300);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
public void start(){
new Thread(new SnakeDriver()).start();
}
//添加监听器
public void addSnakeListener(SnakeListener l){
if(l != null){
this.Listeners.add(l);
}
}
}