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java吃豆子游戏设计 第2页

更新时间:2008-11-25:  来源:毕业论文

java吃豆子游戏
import java.awt.*;

/**
 * 定义水果的类
 */
public class Fruit{
 private int xPos, yPos, xVPos, yVPos;
 private int direction;
 private Rectangle fruit;
 private int appearTime;
 private int AI_time1;
 private int interval;

 public Fruit(){
  xPos = 210;
  yPos = 189;
  xVPos = 210;
  yVPos = 189;
  fruit = new Rectangle(xPos - 6, yPos - 6, 13, 13);
  direction = 2 + (int)(Math.random()*2);
  AI_time1 = 0;
  interval = 63 + 21*((int)(Math.random()*10));
 }

 /**
  * 移动水果
  */
 public void move(Wall[] wall){
  appearTime++;

  boolean canMoveUp, canMoveDown, canMoveRight, canMoveLeft, changeMovement;

  canMoveUp = true;
  canMoveDown = true;
  canMoveLeft = true;
  canMoveRight = true;
  changeMovement = false;

  Rectangle R;
  Rectangle UP = new Rectangle(xVPos - 10, yVPos - 10 - 1, 21, 21);
  Rectangle DOWN = new Rectangle(xVPos - 10, yVPos - 10 + 1, 21, 21);
  Rectangle LEFT = new Rectangle(xVPos - 10 - 1, yVPos - 10, 21, 21);
  Rectangle RIGHT = new Rectangle(xVPos - 10 + 1, 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);
   if(R.intersects(UP))
    canMoveUp = false;
   if(R.intersects(UP) && direction == 0){
    yPos = yVPos;
    changeMovement = true;
   }

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

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

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

  interval-=1;
  if(interval <=0)
   changeMovement = true;

  int u = (int)(Math.random()*4);
  if(canMoveUp && direction != 1 && AI_time1 > 10 && u == 0){
   direction = 0;
   xPos = xVPos;
   AI_time1 = 0;
  }
  if(canMoveDown && direction != 0 && AI_time1 > 10 && u == 1){
   direction = 1;
   xPos = xVPos;
   AI_time1 = 0;
  }
  if(canMoveLeft && direction != 3 && AI_time1 > 10 && u == 2){
   direction = 2;
   xPos = xVPos;
   AI_time1 = 0;
  }
  if(canMoveRight && direction != 2 && AI_time1 > 10 && u == 3){
   direction = 3;
   xPos = xVPos;
   AI_time1 = 0;
  }

  if(changeMovement){
   for(;;){
    u = (int)(Math.random()*2);
    if(direction == 0 || direction == 1){
     if(u == 0){
      if(canMoveLeft)
       direction = 2;
      if(canMoveRight)
       direction = 3;
     }
     if(u == 1){
      if(canMoveRight)
       direction = 3;
      if(canMoveLeft)
       direction = 2;
     }
     AI_time1 = 0;
     break;
    }
    if(direction == 2 || direction == 3){
     if(u == 0){
      if(canMoveUp)
       direction = 0;
      if(canMoveDown)
       direction = 1;
     }
     if(u == 1){
      if(canMoveDown)
       direction = 1;
      if(canMoveUp)
       direction = 0;
     }
     AI_time1 = 0;
     break;
    }
   }
   interval = 63 + 21*((int)(Math.random()*10));
  }

  if(direction == 0 && canMoveUp)
   yPos-=1;
  if(direction == 1 && canMoveDown)
   yPos+=1;
  if(direction == 2 && canMoveLeft)
   xPos-=1;
  if(direction == 3 && canMoveRight)
   xPos+=1;


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

  fruit = new Rectangle(xPos - 6, yPos - 6, 13, 13);

  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;
 }

 public void draw(Graphics g){
  double y = yPos +  + 3*(Math.sin(6*appearTime));
  g.setColor (new Color (254, 184, 4));
  g.fillOval(xPos - 5, (int)(y - 5), 11, 11);
  g.setColor (new Color (28, 232, 4));
  g.fillRect(xPos - 5, (int)(y - 5), 3, 3);
  g.fillRect(xPos - 7, (int)(y - 7), 3, 3);
 }

 public int getAppearTime(){
  return appearTime;
 }

 public Rectangle getBorder(){
  return fruit;
 }
}

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