circle.java

java画图程序

public class Circle {
private int x, y, radius=10, step=5, side=400;
private boolean clockwise=true;
private double prob;
public Circle(int i, double p) {
x=(i*2*radius)+radius;
y=radius;
prob=p;
}
public void move () {//Complete this code
int intx=radius,inty=radius,height=400-4*radius,width=400-2*radius;

if (clockwise)
 {

 	 if ((y==radius)&&(x<width))
    {
      x=x+5;
       if (x>width)
        {x=width;
         //y=(i*2*radius)+radius;
         y=y+5;
         
         }
    }
   if ((x==width)&&(y<height))
   {
   	  y=y+5;
   	  if (y>height)
   	    {
   	       y=height;
   	       x=x-5;
              	    	
   	    }
   	  
   	
   	
   	}  
   	
   	 if ((y==height)&&(x>radius))
   {
   	  x=x-5;
   	  if (x<radius)
   	    {
   	       x=radius;
   	       y=y-5;
              	    	
   	    }
   	  
   	
   	
   	}
   if ((x==radius)&&(y>radius))
   {
   	  y=y-5;
   	  if (y<radius)
   	    {
   	       y=radius;
   	       x=x+5;
              	    	
   	    }
   	  
   	
   	
   	}
   double rnd = Math.random();
  if (rnd<prob) clockwise=false;
  
 }
 else
 { 

  //clockwise=false;
 	
	 if ((y==radius)&&(x>radius))
    {
      x=x-5;
       if (x<radius)
        {x=radius;
         //y=(i*2*radius)+radius;
         y=y+5;
         
         }
    }
   if ((x==radius)&&(y<height))
   {
   	  y=y+5;
   	  if (y>height)
   	    {
   	       y=height;
   	       x=x+5;
              	    	
   	    }
   	  
   	
   	
   	}  
   	
   	 if ((y==height)&&(x<width))
   {
   	  x=x+5;
   	  if (x>width)
   	    {
   	       x=width;
   	       y=y-5;
              	    	
   	    }
   	  
   	
   	
   	}
   if ((x==width)&&(y>radius))
   {
   	  y=y-5;
   	  if (y<radius)
   	    {
   	       y=radius;
   	       x=x-5;
              	    	
   	    }
   	  
   	
   	
   	}
 	
 
   	  
   	
   	

 	

 	
}


}
//These are used for drawing circles and must not be changed.
public int getX() {return x;}
public int getY() {return y;}
public int getRadius() {return radius;}
public boolean clockwise() {return clockwise;}
}