dotfactory.java

用JAVA写个一个烟花效果

package FireFlower;
import java.awt.Color;
import java.util.Random;


//制作Dot的具体子类的工厂类
public class DotFactory {
	private  Random   rand=new  Random();
	public  DotFactory(){}
	
	public  Dot  makeDot(int kind,int  x,int y){
		 Color  col=new Color(rand.nextInt(256),rand.nextInt(256),
				   rand.nextInt(256));
		 
		 
		 Dot dot=null;

		switch(kind%6+1){
		//  switch(6){
		case 1:dot=new DotOne(col,x,y);break;
		case 2:dot=new DotTwo(col,x,y);break;
		case 3:dot=new DotThree(col,x,y);break;
		case 4:dot=new DotFour(col,x,y);break;
		case 5:dot=new DotFive(col,x,y);break;
		case 6:dot=new DotSix(col,x,y);break;
		}
		
		return dot;
		
	}
	
}