求助 cs 的课程,先做得像这个样子, 以后还要加上一些小功能改善这个小游戏： https://youtu.be/YQG-PPxig-k 不知道何从下手，求大佬们帮帮忙,目前已有的 code:

public class Battleship extends ConsoleProgram { public void run() { System.out.println("======================"); System.out.println("Welcome to battleship."); System.out.println("======================"); } }

public class Grid { private Location[][] grid;

// Constants for number of rows and columns. public static final int NUM_ROWS = 10; public static final int NUM_COLS = 10; // Create a new Grid. Initialize each Location in the grid // to be a new Location object. public Grid() { grid = new Location[10][10]; for(int row = 0; row < NUM_ROWS; row++) { for(int col = 0; col < NUM_COLS; col++) { grid[row][col] = new Location(); } } } // Mark a hit in this location by calling the markHit method // on the Location object. public void markHit(int row, int col) { grid[row][col].markHit(); } // Mark a miss on this location. public void markMiss(int row, int col) { grid[row][col].markMiss(); } // Set the status of this location object. public void setStatus(int row, int col, int status) { grid[row][col].setStatus(status); } // Get the status of this location in the grid public int getStatus(int row, int col) { return grid[row][col].getStatus(); } // Return whether or not this Location has already been guessed. public boolean alreadyGuessed(int row, int col) { return grid[row][col].isUnguessed() == false; } // Set whether or not there is a ship at this location to the val public void setShip(int row, int col, boolean exist) { grid[row][col].setShip(exist); } // Return whether or not there is a ship here public boolean hasShip(int row, int col) { return grid[row][col].hasShip(); } // Get the Location object at this row and column position public Location get(int row, int col) { return grid[row][col]; } // Return the number of rows in the Grid public int numRows() { return NUM_ROWS; } // Return the number of columns in the grid public int numCols() { return NUM_COLS; } public void printStatus() { System.out.println("1 2 3 4 5 6 7 8 9 10"); for(int row = 0; row < NUM_ROWS; row++) { System.out.print((char)(row + 65)); for(int col = 0; col < NUM_COLS; col++) { if(grid[row][col].checkHit()) { System.out.print(" X"); } else if(grid[row][col].getStatus() == 2) { System.out.print(" O"); } else { System.out.print(" -"); } } System.out.print(" "); System.out.println(); } } public void printShips() { System.out.println("1 2 3 4 5 6 7 8 9 10"); for(int row = 0; row < NUM_ROWS; row++) { System.out.print((char)(row + 65)); for(int col = 0; col < NUM_COLS; col++) { if(grid[row][col].hasShip() == true) { System.out.print(" X"); } else { System.out.print(" -"); } } System.out.print(" "); System.out.println(); } } 

}

public class Player { private static final int[] SHIP_LENGTHS = {2, 3, 3, 4, 5}; public Grid enemyGrid; public Grid myGrid; private static int c = 0; public Player() { myGrid = new Grid(); enemyGrid = new Grid(); } public void chooseShipLocation(Ship s, int row, int col, int direction) { if(c < 5) { s.setLocation(row, col); s.setDirection(direction); myGrid.addShip(s); c ++; } }

public void printMyShips() { myGrid.printShips(); } public void printOpponentGuesses() { myGrid.printStatus(); } public void printMyGuesses() { myGrid.printStatus(); } public void recordOpponentGuess(int row,int col) { if(myGrid.hasShip(row, col)) { myGrid.markHit(row, col); } else { myGrid.markMiss(row, col); } } 

}

import java.util.*;

public class Randomizer{

public static Random theInstance = null; public Randomizer(){ } public static Random getInstance(){ if(theInstance == null){ theInstance = new Random(); } return theInstance; } /** * Return a random boolean value. * @return True or false value simulating a coin flip. */ public static boolean nextBoolean(){ return Randomizer.getInstance().nextBoolean(); } /** * This method simulates a weighted coin flip which will return * true with the probability passed as a parameter. * * @param probability The probability that the method returns true, a value between 0 to 1 inclusive. * @return True or false value simulating a weighted coin flip. */ public static boolean nextBoolean(double probability){ return Randomizer.nextDouble() < probability; } /** * This method returns a random integer. * @return A random integer. */ public static int nextInt(){ return Randomizer.getInstance().nextInt(); } /** * This method returns a random integer between 0 and n, exclusive. * @param n The maximum value for the range. * @return A random integer between 0 and n, exclusive. */ public static int nextInt(int n){ return Randomizer.getInstance().nextInt(n); } /** * Return a number between min and max, inclusive. * @param min The minimum integer value of the range, inclusive. * @param max The maximum integer value in the range, inclusive. * @return A random integer between min and max. */ public static int nextInt(int min, int max){ return min + Randomizer.nextInt(max - min + 1); } /** * Return a random double between 0 and 1. * @return A random double between 0 and 1. */ public static double nextDouble(){ return Randomizer.getInstance().nextDouble(); } /** * Return a random double between min and max. * @param min The minimum double value in the range. * @param max The maximum double value in the rang. * @return A random double between min and max. */ public static double nextDouble(double min, double max){ return min + (max - min) * Randomizer.nextDouble(); } 

}

public class Ship { public int length; public int direction; public int row; public int col; public static final int UNSET = -1; public static final int HORIZOnTAL= 0; public static final int VERTICAL = 1; // Constructor. Create a ship and set the length. public Ship(int length) { this.row = UNSET; this.col = UNSET; this.length = length; this.direction = UNSET; }

// Has the location been initialized public boolean isLocationSet() { return !(this.row == UNSET)&&(this.col == UNSET); } // Has the direction been initialized public boolean isDirectionSet() { return direction != UNSET; } // Set the location of the ship public void setLocation(int row, int col) { this.row = row; this.col = col; } // Set the direction of the ship public void setDirection(int direction) { this.direction = direction; } // Getter for the row value public int getRow() { return row; } // Getter for the column value public int getCol() { return col; } // Getter for the length of the ship public int getLength() { return length; } // Getter for the direction public int getDirection() { return direction; } // Helper method to get a tring value from the direction private String directionToString() { String exa = ""; if(direction == VERTICAL) { exa = "vertical"; } else if(direction == HORIZONTAL) { exa = "horizontal"; } else { exa = "unset direction"; } return exa; } // Helper method to get a (row, col) string value from the location private String locationToString() { String ini = ""; if(row != UNSET) { ini = "(" + row + ", " + col + ")"; } else { ini = "(unset location)"; } return ini; } // toString value for this Ship public String toString() { return directionToString() + " ship of length " + length + " at "locationToString(); } 

}

public class Location { public boolean exist; public int status; public static final int UNGUESSED = 0; public static final int HIT = 1; public static final int MISSED = 2; // Location constructor. public Location() { this.exist = exist; this.status = status; } // Was this Location a hit? public boolean checkHit() { return status == HIT; } // Was this location a miss? public boolean checkMiss() { return status == MISSED; } // Was this location unguessed? public boolean isUnguessed() { return status == UNGUESSED; } // Mark this location a hit. public void markHit() { this.status = HIT; } // Mark this location a miss. public void markMiss() { this.status = MISSED; } // Return whether or not this location has a ship. public boolean hasShip() { return exist; } // Set the value of whether this location has a ship. public void setShip(boolean exist) { this.exist = exist; } // Set the status of this Location. public void setStatus(int status) { this.status = status; } // Get the status of this Location. public int getStatus() { return status; } }