game.java

一个用java写的小游戏。雷电游戏。用图象跟踪器来跟踪图象。

             	       }
                	}
                }
                if (bs.islive) { bs.move();}//未击中的子弹继续移动
             }
             else {BBv.remove(i);}//清除击中的子弹
          }
          //处理爆炸s
          for (int i = 0 ; i < BOMBv.size() ; i++)
          {
          	 Bomb bombs;
          	 bombs = (Bomb) BOMBv.elementAt(i);
          	 if (bombs.islive){ bombs.grow();}
          	 else { BOMBv.remove(i);}
          }
          //处理敌机子弹是否击中
          for (int i = 0 ; i < EBv.size() ; i++)
          {
          	 EB ebs;
          	 ebs = (EB) EBv.elementAt(i);
          	 ebs.hit(hero_x,hero_y);
          	 //消除无效子弹
          	 if ( ebs.islive 
          	      && ebs.y > -10 && ebs.y < a.y - 10 
          	      && ebs.x > 0 && ebs.x < a.x - 10)
          	 { ebs.move();}
          	 else if (!ebs.islive) 
          	 { System.out.println("hit you"); EBv.remove(i);hero_hp -= 10;}
          	 else 
          	 { EBv.remove(i);}
          }
          cont++;
          if (cont%3 == 0)
          { 
            if (isfire){ BBmove(BBx,BBy);} 
            if (seq == 0) { seq = 1;}
            else { seq = 0;}
          cont = 0;               
          }
          repaint();    
          try
          {
             Thread.sleep(20);    
          }
          catch(Exception E){ }
          if(y == 0) {y = 0;}
          else {y++;}
       }
   }
   
    public void BBmove(int x, int y)
    {
    	 BB bs;
		   	 bs = new BB (x,y);
		     //保证不出届
		     if (BBx >= (a.x - 75)){ BBx = a.x - 75;}
		     if (BBy >= (a.y - 150)){ BBy = a.y - 150;}
		     BBv.add(bs);
    }

	public void mouseDragged(MouseEvent e) 
	{
		isfire = true;
		BBx = hero_x + 10;
		BBy = hero_y;
		
		hero_x = e.getX() - 35;
		hero_y = e.getY() - 35;
		//保证不出届
		if (BBx >= (a.x - 75)){ BBx = a.x - 75;}
		if (BBy >= (a.y - 150)){ BBy = a.y - 150;}
		if (BBx < 25){ BBx = 25;}
		if (BBy < 25){ BBy = 25;}
        //限速
		if ((hero_x - hero_oldx) > 15 ){ hero_x = hero_oldx + 15;};
		if ((hero_x - hero_oldx) < -15 ){ hero_x = hero_oldx - 15;};
		if ((hero_y - hero_oldy) > 15 ){ hero_y = hero_oldy + 15;};
		if ((hero_y - hero_oldy) < -15 ){ hero_y = hero_oldy - 15;};	
		//保证不出届
		if (hero_x >= (a.x - 70)){ hero_x = a.x - 70;}
		if (hero_y >= (a.y - 120)){ hero_y = a.y - 120;}
		if (hero_x < 0){ hero_x = 0;}
		if (hero_y < 0){ hero_y = 0;}
		//if ((hero_oldx - hero_x) > 3){dir = 1;}
		//else if ((hero_x - hero_oldx) > 3){dir = 2;}
		//else {dir = 0;}
		hero_oldx = hero_x;
		hero_oldy = hero_y;
	
    }

	public void mouseMoved(MouseEvent e) 
	{
	    hero_x = e.getX() - 35;
		hero_y = e.getY() - 35;
	    //保证不出届
		if (hero_x >= (a.x - 70)){ hero_x = a.x - 70;}
		if (hero_y >= (a.y - 120)){ hero_y = a.y - 120;}
		if (hero_x < 0){ hero_x = 0;}
		if (hero_y < 0){ hero_y = 0;}
		//限速
		if ((hero_x - hero_oldx) > 15 ){ hero_x = hero_oldx + 15;};
		if ((hero_x - hero_oldx) < -15 ){ hero_x = hero_oldx - 15;};
		if ((hero_y - hero_oldy) > 15 ){ hero_y = hero_oldy + 15;};
		if ((hero_y - hero_oldy) < -15 ){ hero_y = hero_oldy - 15;};
		//判断方向
	    //if ((hero_oldx - hero_x) > 10){dir = 1;}
		//else if ((hero_x - hero_oldx) > 10){dir = 2;}
		//else {dir = 0;}
		//改值
		hero_oldx = hero_x;
		hero_oldy = hero_y;
	}
    
	public void mouseClicked(MouseEvent e) 
	{   }

	public void mousePressed(MouseEvent e) 
	{
		/////////////////////////////////////////////////////////
		//如果GAMEOVER可以重新开始 
		  if (hero_hp < 0)
		{
			if (this.Game_star != null)
			{
				this.Game_star.stop();
				this.Game_star = null;
			}
			this.Game_star = new Thread(this);
			Game_star.start();
			Game_star.setPriority(7);
		    y = - (5*a.y);
		    hero_x = a.x/2 - 35;
		    hero_y = a.y - 85;
		    hero_oldx = hero_x;
		    hero_oldy = hero_y;
		    hero_hp = 200;
		    seq = 0;
		    dir = 0;
		    Sum = 0;
		    E_num = 0;
		    E_max = 9;
		    E_vel = 7;
		    E_mov = 90;
		    E_hit = 97;
		    isfire = false;
		    EEv.removeAllElements();
		    BBv.removeAllElements();
		    EBv.removeAllElements();
		    BOMBv.removeAllElements();
		}
		///////////////////////////////////////////////////////////////////////	
		else
		{
		  isfire = true;
		  BBx = hero_x+10;
		  BBy = hero_y;
		  //保证不出届
		  //保证不出届
		  if (BBx >= (a.x - 75)){ BBx = a.x - 75;}
		  if (BBy >= (a.y - 150)){ BBy = a.y - 150;}
		  if (BBx < 25){ BBx = 25;}
		  if (BBy < 25){ BBy = 25;}
		}
    }

	public void mouseReleased(MouseEvent e) 
	{
		isfire = false;
	}

	public void mouseEntered(MouseEvent e) 
	{
		// TODO: Add your code here
	}

	public void mouseExited(MouseEvent e) 
	{
		// TODO: Add your code here
	}
}

//物体类
class BB //子弹类
{
  int x;
  int y;
  int v;//速度
  int cont;//生命周期
  boolean islive = true ;
  BB(int x,int y)
  {
  	this.x = x;
  	this.y = y;
  	this.v = 10;
  	this.cont = 0;
  }
  public void move()
  {
  	if (this.cont >= 7)
  	{ this.cont = 0 ;}
  	this.y -= this.v;
  	this.cont++;
  }
  public void hit(int a,int b)
  {
  	 if ( Math.abs((x + 25) - (a + 25)) < 26 && Math.abs((y + 25) - (b + 25)) < 26)
  	      {this.islive = false;}
  	 else {this.islive = true;}
  }  
}
class EE //敌兵类
{
  int x;
  int y;
  int r;//几率
  int f;//开火几率
  int vx;//速度
  int vy;//速度
  int cont;//生命周期
  boolean islive = true ;
  boolean toleft = false ;
  boolean toright = false ;
  EE(int x,int vy,int r,int f)
  {
  	this.x = x;
  	this.y = -50;
  	this.vx = 0;
  	this.vy = vy;
  	this.r = r;
  	this.f = f;
  	this.cont = 0;
  }
  // 敌机移动
  public void move(int a)
  {
  	// 一定几率横向移动
  	if(Math.random()*100 > r)
  	{
  	   if (a - this.x > 50 && cont == 0) 
  	   {
  	   	  this.vx = 3; 
  	   	  this.toright = true;
  	   	  this.toleft = false;
  	   }
  	   else if (this.x - a > 50 && cont == 0)
  	   {
  	   	  this.vx = -3;
  	   	  this.toright = false;
  	   	  this.toleft = true;
  	   }
  	   this.cont++;
    }
    if (this.cont > 2 )
  	{
  	    this.vx = 0;
  	    this.toright = false;
  	    this.toleft = false;
  	    this.cont = 0;
  	}
  	this.x += this.vx;
  	this.y += this.vy;
  }
  // 敌机开火
   public boolean tofire()
  {
  	// 一定几率开火
  	if(Math.random()*100 > f){ return true; }  	
  	else { return false;}
  }
  //碰撞检查
  public void hit(int a,int b)
  {
  	 if ( Math.abs((x + 25) - (a + 25)) < 28 && Math.abs((y + 25) - (b + 25)) < 28)
  	      {this.islive = false;}
  	 else {this.islive = true;}
  }  
}
class EB //敌兵子弹类
{
  int x;
  int y;
  int vx;
  int cont;//生命周期
  int vy;//速度
  boolean islive = true ;
  EB(int x,int y,int a,int b)
  {
  	this.x = x;
  	this.y = y;
  	this.vy = 15;
  	this.cont = 0;
  	if (this.x < a) 
  	   {
  	   	  this.vx = 2; 
  	   }
    else 
  	   {
  	   	  this.vx = -2;
  	   }
  	if (this.y < b) 
  	   {
  	   	  this.vy = 7; 
  	   }
    else 
  	   {
  	   	  this.vy = -7;
  	   }
  }
  public void move()
  {
  	if (this.cont >= 20){ this.cont = 0;}
  	this.cont++;
  	this.y += this.vy;
  	this.x += this.vx;
  }
  public void hit(int a,int b)
  {
  	 if ( Math.abs((x + 10) - (a + 25)) < 28 && Math.abs((y + 10) - (b + 5)) < 28)
  	      {this.islive = false;}
  	 else {this.islive = true;}
  } 
}
class Bomb //敌兵爆炸类
{
  int x;
  int y;
  int cont;
  boolean islive = true ;
  Bomb(int x,int y)
  {
  	this.x = x;
  	this.y = y;
  	this.cont = 0;
  }
  public void grow()
  {
  	if (cont > 61) {this.islive = false;}
  	this.cont ++;
  	this.y ++ ;
  } 
}