我試圖復制 Pacman 游戲，然后我想出了玩家影片，然后根據需要轉身，回圈打開和關閉嘴巴。我寫了代碼，它按要求正常作業。只是當我按住鍵（W、A、S、D）時它會張開和閉上嘴，但并非總是如此。我不明白錯誤在哪里..這是我現在的代碼：
package playerAnimation;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Animation extends JPanel implements ActionListener, KeyListener {
Timer tm = new Timer(1,this);
private String playerDirection="Right";
private int playerX;
private int playerY;
private int playerSpeedX;
private int playerSpeedY;
private int spriteCounter = 0;
private int spriteNum = 1;
public BufferedImage playerUp, playerDown, playerLeft, playerRight, playerClosedMouth;
public BufferedImage imagePlayer = null;
public void getPlayerImage() {
try {
playerUp = ImageIO.read(getClass().getResourceAsStream("/player/imageUp.png"));
playerDown = ImageIO.read(getClass().getResourceAsStream("/player/imageDown.png"));
playerLeft = ImageIO.read(getClass().getResourceAsStream("/player/imageLeft.png"));
playerRight = ImageIO.read(getClass().getResourceAsStream("/player/imageRight.png"));
playerClosedMouth = ImageIO.read(getClass().getResourceAsStream("/player/closed.png"));
}catch(IOException e ) {
e.printStackTrace();
}
}
Timer timer = new Timer(1,this);
public Animation() {
getPlayerImage();
tm.start();
addKeyListener(this);
setFocusable(true);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(imagePlayer,playerX,playerY,null);
}
public void actionPerformed(ActionEvent e) {
playerX=playerX playerSpeedX;
playerY=playerY playerSpeedY;
repaint();
}
public void keyPressed(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_W) {
if(spriteNum==1) {
imagePlayer=playerUp;
}
if(spriteNum==2) {
imagePlayer=playerClosedMouth;
}
playerSpeedX=0;
playerSpeedY=-1;
}
if(e.getKeyCode() == KeyEvent.VK_D) {
if(spriteNum==1) {
imagePlayer=playerRight;
}
if(spriteNum==2) {
imagePlayer=playerClosedMouth;
}
playerSpeedX=1;
playerSpeedY=0;
}
if(e.getKeyCode() == KeyEvent.VK_A) {
if(spriteNum==1) {
imagePlayer=playerLeft;
}
if(spriteNum==2) {
imagePlayer=playerClosedMouth;
}
playerSpeedX=-1;
playerSpeedY=0;
}
if(e.getKeyCode() == KeyEvent.VK_S) {
if(spriteNum==1) {
imagePlayer=playerDown;
}
if(spriteNum==2) {
imagePlayer=playerClosedMouth;
}
playerSpeedX=0;
playerSpeedY=1;
}
spriteCounter ;
if(spriteCounter>10) {
if(spriteNum==1) {
spriteNum=2;
}
else if(spriteNum==2) {
spriteNum=1;
}
spriteCounter=0;
}
}
public void keyTyped(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
}
而主要的：
package playerAnimation;
import javax.swing.JFrame;
public class Main {
public static void main(String[] args) {
Animation player = new Animation();
JFrame Window = new JFrame();
Window.setTitle("playerAnimation");
Window.setSize(600,400);
Window.setVisible(true);
Window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Window.add(player);
}
}
以下是照片：
玩家閉嘴
播放器向下
玩家左
播放器權限
播放器
uj5u.com熱心網友回復：
歡迎來到 SO。請閱讀代碼中的注釋以遵循為顯示基本的 Packman 播放器影片所做的更改。
有關更多增強建議，請參閱 todo 評論：
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.*;
public class Animation extends JPanel implements ActionListener, KeyListener {
private int playerX , playerY, playerSpeedX, playerSpeedY;
private boolean isMouthOpen; //flag to toggle mouth open / closed
private static final Dimension P_SIZE = new Dimension(600,400);
public BufferedImage playerUp, playerDown, playerLeft, playerRight, playerClosedMouth, imagePlayer;
//publicly available images for the MRE
private static final String IMAGE_UP ="https://i.stack.imgur.com/wD64A.png",
IMAGE_DOWN ="https://i.stack.imgur.com/am6PQ.png",
IMAGE_LEFT ="https://i.stack.imgur.com/5Pjqm.png",
IMAGE_RIGHT = "https://i.stack.imgur.com/sVD6m.png",
IMAGE_CLOSED = "https://i.stack.imgur.com/Kkw83.png"
;
public void getPlayerImage() {
try {
playerUp = ImageIO.read(new URL(IMAGE_UP));
playerDown = ImageIO.read(new URL(IMAGE_DOWN));
playerLeft = ImageIO.read(new URL(IMAGE_LEFT));
playerRight = ImageIO.read(new URL(IMAGE_RIGHT));
playerClosedMouth = ImageIO.read(new URL(IMAGE_CLOSED));
}catch(IOException e ) {
e.printStackTrace();
}
}
public Animation() {
getPlayerImage();
//initialize player image, location and speed
imagePlayer = playerRight;
playerX = 100; playerY = 100; playerSpeedX = 1; playerSpeedY = 0;
isMouthOpen = true;
addKeyListener(this);
setFocusable(true);
Timer tm = new Timer(100,this);
tm.start();
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
//if mouth is open - draw mouth closed and vice versa
BufferedImage image = isMouthOpen ? playerClosedMouth : imagePlayer;
g.drawImage(image, playerX, playerY, this);
}
@Override
public void actionPerformed(ActionEvent e) {
checkBounds();
playerX=playerX playerSpeedX;
playerY=playerY playerSpeedY;
isMouthOpen = ! isMouthOpen; //toggle mouth flag
//todo add control parameters to allow toggling mouth at a different rate
repaint();
}
//use key presses to change direction and player image
//todo: use key binding instead of KeyListener
@Override
public void keyPressed(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_W) {
playerSpeedX=0;
playerSpeedY=-1;
imagePlayer=playerUp;
}
if(e.getKeyCode() == KeyEvent.VK_D) {
playerSpeedX=1;
playerSpeedY=0;
imagePlayer=playerRight;
}
if(e.getKeyCode() == KeyEvent.VK_A) {
playerSpeedX=-1;
playerSpeedY=0;
imagePlayer=playerLeft;
}
if(e.getKeyCode() == KeyEvent.VK_S) {
playerSpeedX=0;
playerSpeedY=1;
imagePlayer=playerDown;
}
}
private void checkBounds(){
//todo change direction when player hits bounds
}
@Override
public void keyTyped(KeyEvent e) { }
@Override
public void keyReleased(KeyEvent e) { }
@Override
public Dimension getPreferredSize() {
return P_SIZE;
}
public static void main(String[] args) {
Animation player = new Animation();
JFrame window = new JFrame();
window.setTitle("Player Animation");
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.add(player);
window.pack();
window.setVisible(true);
}
}
uj5u.com熱心網友回復：
嘴巴影片僅在我按住按鍵時發生
如果您希望在不按住鍵的情況下發生影片，則切換影像的邏輯需要移至 Timer ActionListener，以便它在您更改影像位置的同時發生變化。
（未經測驗的）邏輯可能類似于：
if(e.getKeyCode() == KeyEvent.VK_W) {
playerOpenMouth = playerUp;
playerSpeedX=0;
playerSpeedY=-1;
}
...
在 ActionListener 中切換張開/閉合嘴巴影像的邏輯可能如下所示：
if (openMouth)
imagePlayer = playerOpenMouth;
else
imagePlayer = playerClosedMouth;
openMouth = !openMouth;
playerX = playerX playerSpeedX; // use white space to improve readability
playerY = playerY playerSpeedY;
repaint();
轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/404502.html
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