shipboard.java

proxy server for caching and packet filtering final project

/**
 * Records all the ships of a player
 */
public class ShipBoard {                     
  /**
   * The number of ships on this ship board
   */
  private int size;
  /**
   * All the ships on this ship board
   */
  private Ship fleet[];                   
  /**
   * Builds a Shipboard containing specified ships
   * @param f the ships to be added to this Shipboard
   * @param s the number of ships to be added
   */
  ShipBoard(Ship f[],int s){                   //Constructor - specifies the ships to be added
    fleet=f;
    size=s;
  }
  /**
   * Builds a standard ship board containing five ships in the order : PatrolBoat,Destroyer,Submarine,BattleShip,Carrier. 
   * Places all the ships randomly on the board.
   */
  ShipBoard(){
    Location shipL;
    int r,c;
    int shipD;
    boolean done;                          //to find non overlapping locations for ships
    fleet=new Ship[5];
    size=5;
    
    //initialize Patrol Boat
    shipD=(int)(2*Math.random());           //get a random direction to align (row/column)
    if (shipD==1){                //column alignment
      c=(int)(10*Math.random());             
      r=(int)(9*Math.random());             //get random hole to place end of ship - so that it lies within the board
    }
    else{                              //row alignment
    c=(int)(9*Math.random());             
    r=(int)(10*Math.random());
     }
    shipL=new Location(r,c);
    fleet[0]=new Ship("Patrol Boat",2,shipL,shipD);
    
    //initialize Destroyer
    done=false;
    while(!done){
      shipD=(int)(2*Math.random()); 
      if (shipD==1){                //column alignment
        c=(int)(10*Math.random());             
        r=(int)(8*Math.random());
      }
      else{                              //row alignment
        c=(int)(8*Math.random());             
        r=(int)(10*Math.random());
      }
      shipL=new Location(r,c);
      fleet[1]=new Ship("Destroyer",3,shipL,shipD);
      done=true;
      for(int i=0;i<1;i++)               //Check if this ship clashes with any previously placed ship
        done=done&&(!fleet[1].isClash(fleet[i]));
    }
    //initialize Submarine
    done=false;
    while(!done){
      shipD=(int)(2*Math.random()); 
      if (shipD==1){                //column alignment
        c=(int)(10*Math.random());             
        r=(int)(8*Math.random());
      }
      else{                              //row alignment
        c=(int)(8*Math.random());             
        r=(int)(10*Math.random());
      }
      shipL=new Location(r,c);
      fleet[2]=new Ship("Submarine",3,shipL,shipD);
      done=true;
      for(int i=0;i<2;i++)                 //Check if this ship clashes with any previously placed ship
        done=done&&(!fleet[2].isClash(fleet[i]));
    }
    //initialize Battleship
    done=false;
    while(!done){
      shipD=(int)(2*Math.random()); 
      if (shipD==1){                //column alignment
        c=(int)(10*Math.random());             
        r=(int)(7*Math.random());
      }
      else{                              //row alignment
        c=(int)(7*Math.random());             
        r=(int)(10*Math.random());
      }
      shipL=new Location(r,c);
      fleet[3]=new Ship("Battleship",4,shipL,shipD);
      done=true;
      for(int i=0;i<3;i++)                    //Check if this ship clashes with any previously placed ship
        done=done&&(!fleet[3].isClash(fleet[i]));
    }
    //initialize Carrier
    done=false;
    while(!done){
      shipD=(int)(2*Math.random()); 
      if (shipD==1){                //column alignment
        c=(int)(10*Math.random());             
        r=(int)(6*Math.random());
      }
      else{                              //row alignment
        c=(int)(6*Math.random());             
        r=(int)(10*Math.random());
      }
      shipL=new Location(r,c);
      fleet[4]=new Ship("Carrier",5,shipL,shipD);
      done=true;
      for(int i=0;i<4;i++)                   //Check if this ship clashes with any previously placed ship
        done=done&&(!fleet[4].isClash(fleet[i]));
    }
  }
  /**
   * Check if the specified ship is hit in a location
   * @param l Location to check 
   * @param n index of the ship to check
   * @return true if ship fleet[n] occupies location l
   */
  public boolean hitShip(Location l,int n){       //check if ship number n is hit
    if(n<size)
      return fleet[n].guess(l);
    else return false;
  }
  /**
   * Test if all ships on this Shipboard are sunk
   * @return true if all ships are sunk
   */
  public boolean isDestroyed(){          //Check if all the ships are sunk
  boolean des=true;
  for(int i=0;i<size;i++)
    des=des&&fleet[i].isSunk();
  return des;
  }
  /**
   * Get the status of all ships on this Shipboard
   * @return An array of length size. The entry in the i-th position is the number of hits on ship fleet[i]
   */
  public int[] getFleetStat(){            
  int stat[]=new int[size];
  for(int i=0;i<size;i++)
    stat[i]=fleet[i].numHit();          //number of hits on ship i
  return stat;
}
};