java吃豆子游戏设计 第5页

java吃豆子
import java.awt.*;

/**
 * 定义吃豆者的类
 */
public class Player{

 private int xPos;
 private int yPos;
 private int xVPos;
 private int yVPos;
 private int speed;
 private int direction;
 private Rectangle player;
 //吃豆者的张开角度
 private int mouthDegree;
 //吃豆者是否移动
 private boolean isMoving = true;
 //吃豆者的张、合情况
 private boolean mouthOpen, mouthClose;
 //是否可以上下左右移动
 private boolean canMoveUp, canMoveDown, canMoveLeft, canMoveRight;
 //游戏是否结束
 private boolean dead;

 /**
  **构造函数：初始化吃豆者的属性
  */
 public Player(){
  xPos = 210;
  yPos = 357;
  xVPos = xPos;
  yVPos = yPos;
  direction = 2;
  //构造一个新的 Rectangle，其左上角被指定为（xPos - 10, yPos - 5），而其宽度和高度为（11,11）。
  player = new Rectangle(xPos - 10, yPos - 5, 11, 11);
  //吃豆者的初始张开角度为30度
  mouthDegree = 30;
  //初始张合状态：张开
  mouthOpen = true;
  speed = 2;
 }

 public void draw(Graphics g){
  int DirectionAngle = 180;
  g.setColor(Color.yellow);
  if(direction == 0)
   DirectionAngle = 90;
  if(direction == 1)
   DirectionAngle = -90;
  if(direction == 2)
   DirectionAngle = 180;
  if(direction == 3)
   DirectionAngle = 0;
  if(dead)
   DirectionAngle = 90;

  //填充覆盖指定矩形的圆弧或椭圆弧。
  //得到的弧由（mouthDegree + DirectionAngle）并跨越（180 - mouthDegree）角度。
  //弧的中心是矩形的中心，此矩形的原点为 (xPos - 10, yPos - 10)，大小为（21, 21）
  g.fillArc(xPos - 10, yPos - 10, 21, 21, mouthDegree + DirectionAngle, 180 - mouthDegree);
  
  g.fillArc(xPos - 10, yPos - 10, 21, 21, 180 + DirectionAngle, 180 - mouthDegree);
 }

 public void move(Wall[] wall){
  
  isMoving = true;

  canMoveUp = true;
  canMoveDown = true;
  canMoveLeft = true;
  canMoveRight = true;

  if(!dead){
   if(mouthDegree == 70){
    mouthClose = true;
    mouthOpen = false;
   }
   if(mouthDegree == -10){
    mouthOpen = true;
    mouthClose = false;
   }
  }

  Rectangle R;
  
  // 构造一个新的 Rectangle，其左上角被指定为（xVPos - 10，yVPos - 12），而其宽度和高度为（21，21）。
  Rectangle UP = new Rectangle(xVPos - 10, yVPos - 12, 21, 21);
  Rectangle DOWN = new Rectangle(xVPos - 10, yVPos - 8, 21, 21);
  Rectangle LEFT = new Rectangle(xVPos - 12, yVPos - 10, 21, 21);
  Rectangle RIGHT = new Rectangle(xVPos - 8, yVPos - 10, 21, 21);

  for(int i = 0; i < wall.length; i++){
   
   R = new Rectangle(wall[i].getxPos() - 10, wall[i].getyPos() - 10, 21, 21);
   
   //确定此 Rectangle R是否与指定 Rectangle UP 相交。如果两个矩形的交集为非空，则它们是相交的。
   //如果R与UP相交，则返回 true；否则返回 false。
   if(R.intersects(UP))
    canMoveUp = false;
   if(R.intersects(UP) && direction == 0)
    yPos = yVPos;

   if(R.intersects(DOWN))
    canMoveDown = false;
   if(R.intersects(DOWN) && direction == 1)
    yPos = yVPos;

   if(R.intersects(LEFT))
    canMoveLeft = false;
   if(R.intersects(LEFT) && direction == 2)
    xPos = xVPos;

   if(R.intersects(RIGHT))
    canMoveRight = false;
   if(R.intersects(RIGHT) && direction == 3)
    xPos = xVPos;
  }

  //如果吃豆者可以移动，则新坐标位置=原坐标位置+速度
  if(direction == 0 && canMoveUp)
   yPos-=speed;
  else if(direction == 1 && canMoveDown)
   yPos+=speed;
  else if(direction == 2 && canMoveLeft)
   xPos-=speed;
  else if(direction == 3 && canMoveRight)
   xPos+=speed;
  //将吃豆者的移动状态设置成为：不能移动
  else
   isMoving = false;

  if(direction == 2 && xPos < 0)
   xPos = 420;
  if(direction == 3 && xPos > 420)
   xPos = 0;

  player = new Rectangle(xPos - 5, yPos - 5, 11, 11);

  int a = (xPos - 10)/21;
  int b = (xPos - 10)%21;
  if(b < 6)
   b = 0;
  if(b > 16)
   b = 21;
  if(b < 17 && b > 5)
   b = 11;
  xVPos = a*21 + b + 10;

  int c = (yPos - 10)/21;
  int d = (yPos - 10)%21;
  if(d < 6)
   d = 0;
  if(d > 16)
   d = 21;
  if(d < 17 && d > 5)
   d = 11;
  yVPos = c*21 + d + 10;

  int angularSpeed = 10;
  if(dead && mouthDegree <= 175){
   isMoving = true;
   mouthOpen = true;
   mouthClose = false;
   angularSpeed = 5;
  }

  if(dead && mouthDegree > 175){
   isMoving = false;
  }

  if(mouthOpen && isMoving){
   mouthDegree+=angularSpeed ;
  }
  
  if(mouthClose && isMoving){
   mouthDegree-=angularSpeed ;
  }

 }

 /**
  **方法：改变前进方向
  */
 public void ChangeDirection(int a){
  if(a == 0 && canMoveUp){
   direction = 0;
   xPos = xVPos;
  }
  if(a == 1 && canMoveDown){
   direction = 1;
   xPos = xVPos;
  }

  if(a == 2 && canMoveLeft){
   direction = 2;
   yPos = yVPos;
  }

  if(a == 3 && canMoveRight){
   direction = 3;
   yPos = yVPos;
  }
 }

 /**
  **返回值：int
  **方法：返回xPos
  */
 public int getxPos(){
  return xPos;
 }

 /**
  **返回值：int
  **方法：返回yPos
  */
 public int getyPos(){
  return yPos;
 }

 public Rectangle getBorder(){
  return player;
 }
 
 /**
  **方法：吃豆者停止运动
  */
 public void stop(){
  speed = 0;751com.cn
 }

 /**
  **方法：游戏结束，设置吃豆者的角度为30
  */
 }
}

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