我正在用java构建一个井字游戏。我已经让游戏达到了可以显示标题、重置按钮、网格并在玩家点击网格时绘制 X 和 Os 的阶段（游戏目前没有游戏逻辑，稍后我将添加）。我现在的问题是，每次玩家点击网格时，任何 X 都会变成 Os，Os 会变成 Xs。我认为问题出在 TicTacToeGame.java 的 paint() 方法中，但我无法解决，因为我还在学习。如果有人可以提供一些建议，将不胜感激。这是构成我的游戏的类的代码。
井字游戏.java
import java.applet.Applet;
import java.awt.Button;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class TicTacToeGame extends Applet {
private final int START_X = 40;
private final int START_Y = 100;
private final int ROWS = 3;
private final int COLS = 3;
private final int BOX_WIDTH = 50;
private final int BOX_HEIGHT = 50;
private final Color BACKCOLOR = Color.black;
private final Color BORDERCOLOR = Color.white;
private final Label TITLE = new Label("Tic-Tac-Toe");
private int player = 1;
private final Font TITLEFONT = new Font("Arial", Font.BOLD, 16); //used to format the title TicTacToe
private TicTacToeBox boxes[][]; //used to create the game elements
private Button resetButton; //button for resetting the game
/**
* This method is used to initalize the game
*/
public void init() {
add(TITLE); //adds the title
TITLE.setFont(TITLEFONT); //sets the titles fonts
resetButton = new Button("New Game/Reset"); // creates a reset/newgame button
resetButton.setLocation(20, 88); //use to position the reset button but doesn't seem to work.
add(resetButton); // adds the reset button
resetButton.addActionListener(new ActionListener() { // creates an
// action
// listener for
// the botton
public void actionPerformed(ActionEvent e) { // this is the
// action to
// be
// performed
// when the
// reset
// button is
// clicked
buildBoxes(); // method used to build the boxes
repaint(); // method used to redraw the grid
} // end actionPerformed()
}); // end addActionListener()
boxes = new TicTacToeBox[ROWS][COLS]; // Initializes a 2d array with 3 rows and 3 columns
buildBoxes(); // builds the boxes
resize(200, 300); //resizes the applet
}//end init()
/**
* This method is used to create the graphics
*/
public void paint(Graphics g) {
// loop through the boxes and draw them.
for (int row = 0; row < boxes.length; row++) {
for (int col = 0; col < boxes[row].length; col++) {
boxes[row][col].draw(g);
if (boxes[row][col].isClicked()) {
removeMouseListener(boxes[row][col]); //removes the mouse listener so this boxes[row][col] can nolonger be clicked
if (player == 1) {
boxes[row][col].setPlayer("x"); //if player variable ==1 set the boxes[row][col].player variable to x
boxes[row][col].setPlayerSeclection(true);
} else {
boxes[row][col].setPlayer("y"); //if player variable is other, set the boxes[row][col].player variable to y
boxes[row][col].setPlayerSeclection(true);
} //end if/else
if(boxes[row][col].playerSeclection == true) { //used to draw the Xs and Os based on previous selections
if (boxes[row][col].player.equals("x")) { //used to draw the Xs
boxes[row][col].drawCross(boxes[row][col].getX(),boxes[row][col].getY(),boxes[row][col].getHeight(),boxes[row][col].getWidth(), g);
player = 2; //sets the variable player to 2
} else{ //used to draw the Ys
boxes[row][col].drawNought(boxes[row][col].getX(),boxes[row][col].getY(),boxes[row][col].getHeight(),boxes[row][col].getWidth(), g);
player = 1; //sets the variable player to 1
}//end if/else
} //end if
}//end if(isClicked)
}//end loop
}//end loop
}//end paint
private void removeMouseListeners() {
for (int row = 0; row < boxes.length; row++) {
for (int col = 0; col < boxes[row].length; col++) {
removeMouseListener(boxes[row][col]);
}//end loop
}//end loop
}//end removeMouseListeners()
/**
* This method is used to build the boxes for the game
*/
private void buildBoxes() {
removeMouseListeners(); //removeMouseListeners()
for (int row = 0; row < boxes.length; row++) {
for (int col = 0; col < boxes[row].length; col++) {
boxes[row][col] = new TicTacToeBox(START_X + col * BOX_WIDTH,START_Y + row * BOX_HEIGHT, BOX_WIDTH, BOX_HEIGHT,
BACKCOLOR, BORDERCOLOR, this);
addMouseListener(boxes[row][col]);
}//end loop
}//end loop
}// end of buildBoxes()
}//end class
TicTacToeBox.java
import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
public class TicTacToeBox extends ClickableBox {
String player; //used to store the player who click the box
boolean playerSeclection = false; //determines is a box has been clicked or not
/**
* This is the constructor for building the Tictactoe board
*
* @param x
* This is the starting position for the box along the x axis
* @param y
* This is the starting position for the box along the y axis
* @param width
* This is the width of the box
* @param height
* This is the height of the box
* @param parent
* This is the container for additional elements
*/
public TicTacToeBox(int x, int y, int width, int height, Color backColor, Color borderColor, Container parent) {
super(x, y, width, height, backColor, borderColor, parent);
}//end TicTacToeBox()
/**
* This method is used to get the value of getPlayer. Either x or o
* @return
*/
public String getPlayer() {
return player;
}//ends getPlayer
/**
* This method is used to set the variable setPlayer to either x or 0
* @param player
*/
public void setPlayer(String player) {
this.player = player;
}
/**
* This method is used to draw the cross
* @param x starting x position of the box
* @param y starting y position of the box
* @param height height of the box
* @param width width of the box
* @param g graphic object for drawing
*/
public void drawCross(int x, int y, int height, int width, Graphics g){
g.setColor(Color.red); //sets the crosses color
g.drawLine(x, y, x + width, y + height); //draws the first line
g.drawLine(x, y + height, x + width, y); //draws the second line
}//end drawX()
/**
* This method is used to draw the nought
* @param x starting position of the box
* @param y starting y position of the box
* @param height height of the box
* @param width width of the box
* @param g Graphics object
*/
public void drawNought(int x, int y, int height, int width, Graphics g){
g.setColor(Color.blue); //sets the oval color
g.drawOval(x, y, width-2, height-2); //draws the oval
}
/**
* This method is used to get the Player selection
* @return
*/
public boolean getPlayerSeclection() {
return playerSeclection;
}
/**
* This method is used to set wether or not the player has selected a box
* @param playerSeclection
*/
public void setPlayerSeclection(boolean playerSeclection) {
this.playerSeclection = playerSeclection;
}
}
ClickableBox.java
import java.awt.event.MouseAdapter;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.Container;
public class ClickableBox extends MouseAdapter {
private int x, y, width, height; // storage for the position, width and height
// of a clickable box
private Color borderColor, backColor, oldColor; // storage for the border
// color, the background color
// and the old/previous color
// of the clickable box
private boolean drawBorder, clicked; // true/false storage for the variable
// drawBorder and clicked
private Container parent; // storage for container object variable
/**
* Constructor method
*
* @param x
* This is the top left position of the mask for the x axes
* @param y
* This is the top left position of the mask for the y axes
* @param width
* This is how wide the mask will be
* @param height
* This is how high the mask will be
* @param borderColor
* This is the border color of the mask
* @param backColor
* This is the background color of the mask
* @param drawBorder
* This is boolean as to weather the border will be drawn?
* @param parent
* This is a parent container??
*/
public ClickableBox(int x, int y, int width, int height, Color borderColor, Color backColor, boolean drawBorder,
Container parent) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.backColor = backColor;
this.borderColor = borderColor;
this.drawBorder = drawBorder;
this.parent = parent;
}// end CLickableBox() constructor
public ClickableBox(int x, int y, int width, int height, Color borderColor, Color backColor,
Container parent) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.backColor = backColor;
this.borderColor = borderColor;
this.parent = parent;
}// end CLickableBox() constructor
/**
* Method to get the variable x
*
* @return the variable x
*/
public int getX() {
return x;
}// end getX()
/**
* Method used to set the variable x
*
* @param x
* This is the value which x will be set to
*/
public void setX(int x) {
this.x = x;
}// end setX()
/**
* Method to get the y variable
*
* @return returns the variable y
*/
public int getY() {
return y;
}// end getY()
/**
* Method used to set the variable y
*
* @param y
* This is the value which y will be set to
*/
public void setY(int y) {
this.y = y;
}// end setY()
/**
* Method getWidth is used to get the width from the variable width
*
* @return returns the variable width
*/
public int getWidth() {
return width;
}// end getWidth()
/**
* Method setWidth is used to set the width of the clickable box
*
* @param width
* This is the value which the width will be set at
*/
public void setWidth(int width) {
this.width = width;
}// end setWidth()
/**
* Method getHeight() is used to get the value of the variable height
*
* @return Returns the value of height
*/
public int getHeight() {
return height;
}// end getHeight()
/**
* Method setHeight() is used to set the height value
*
* @param height
* This is the height of the clickable box
*/
public void setHeight(int height) {
this.height = height;
}// end setHeight()
/**
* Method getBorderColor() is used to get the color of the border
*
* @return Returns the color of the border
*/
public Color getBorderColor() {
return borderColor;
}// end getBorderColor()
/**
* Method setBorderColor() is used to set the border's color
*
* @param borderColor
* This is the color value which will be used as the border's color
*/
public void setBorderColor(Color borderColor) {
this.borderColor = borderColor;
}// end getBorderColor()
/**
* Method getBackColor() is used to return the background color of the
* clickable box
*
* @return Returns the background color
*/
public Color getBackColor() {
return backColor;
}// end getBackColor()
/**
* Method setBackColor() is used to set the background color
*
* @param backColor
* This is the color value which will be used as the background color
*/
public void setBackColor(Color backColor) {
this.backColor = backColor;
}// end setBackColor()
/**
* Method getOldColor() is used to return the previous color
*
* @return Returns the previous color
*/
public Color getOldColor() {
return oldColor;
}// end getOldColor()
public void setOldColor(Color oldColor) {
this.oldColor = oldColor;
}
public boolean isDrawBorder() {
return drawBorder;
}
public void setDrawBorder(boolean drawBorder) {
this.drawBorder = drawBorder;
}
/**
* Method draw() is used to draw the clickable box
*
* @param g
* Graphics variable
*/
public void draw(Graphics g) {
g.setColor(backColor);
g.fillRect(x, y, width, height);
g.setColor(borderColor);
g.drawRect(x, y, width, height);
}
public void mouseReleased(MouseEvent e) {
if (x < e.getX() && e.getX() < x + width && y < e.getY() && e.getY() < y + height) {
clicked = true;
parent.repaint();
}
}
public boolean isClicked() {
return clicked;
}
public void setClicked(boolean clicked) {
this.clicked = clicked;
}
}