servershots.java

来自「一个自己做的battleShip 的java 网络游戏。。。供大家交流」· Java 代码 · 共 21 行

package Server;
import java.util.*;

// ServerShots keeps tracks of all locations shot by server thus avoiding repetition
class ServerShots extends ArrayList
{
   public ServerShots(int size)
   {
      super();
      for (int i=0; i<size; i++)
         add(new Integer(i+1));
   }
   // returns a location to shoot that is not previously shot
   public int shootAt()
   {
      int index = (int) (Math.random() * size());
      int val = ((Integer) get(index)).intValue();
      remove(index);
      return val;
   }   
}