Java Swing游戏开发学习2-编程知识

Java Swing游戏开发学习2

跟随大佬教程继续，图片资源，视频简介有下载链接。

这个文章是看视频教程写的，不算原创。有条件的可以去油管搜索RyiSnow，是一个游戏开发视频制作up主，讲解的非常基础，可以边看边实践，增加对Java SDK中游戏相关API的认识，能学到好多东西。

上一次实现了，一个游戏窗口，窗口添加了一个矩形方块，按w，s，a，d键，可以控制矩形移动；这一次将矩形改为一个player类，控制玩家移动。

添加玩家类

package entity;public class Player extends Entity {GamePanel gp;KeyHandler keyH;public Player(GamePanel gp, KeyHandler keyH) {this.gp = gp;this.keyH = keyH;setDefaultValues();getPlayerImage();direction = "down";}public void setDefaultValues() {x = 100;y = 100;speed = 4;}public void getPlayerImage() {try {up1 = ImageIO.read(getClass().getResourceAsStream("/player/boy_up_1.png"));up2 = ImageIO.read(getClass().getResourceAsStream("/player/boy_up_2.png"));down1 = ImageIO.read(getClass().getResourceAsStream("/player/boy_down_1.png"));down2 = ImageIO.read(getClass().getResourceAsStream("/player/boy_down_2.png"));left1 = ImageIO.read(getClass().getResourceAsStream("/player/boy_left_1.png"));left2 = ImageIO.read(getClass().getResourceAsStream("/player/boy_left_2.png"));right1 = ImageIO.read(getClass().getResourceAsStream("/player/boy_right_1.png"));right2 = ImageIO.read(getClass().getResourceAsStream("/player/boy_right_2.png"));} catch (IOException e) {e.printStackTrace();}}public void update() {if (keyH.upPressed || keyH.downPressed || keyH.leftPressed || keyH.rightPressed) {if (keyH.upPressed) {direction = "up";y -= speed;} else if (keyH.downPressed) {direction = "down";y += speed;} else if (keyH.leftPressed) {direction = "left";x -= speed;} else if (keyH.rightPressed) {direction = "right";x += speed;}spriteCounter++;if (spriteCounter > 12) {if (spriteNum == 1) {spriteNum = 2;} else if (spriteNum == 2) {spriteNum = 1;}spriteCounter = 0;}}}public void draw(Graphics2D g2) {
//        g2.setColor(Color.WHITE);
//        g2.fillRect(x, y, gp.tileSize, gp.tileSize);BufferedImage image = null;switch (direction) {case "up":if (spriteNum == 1) {image = up1;}if (spriteNum == 2) {image = up2;}break;case "down":if (spriteNum == 1) {image = down1;}if (spriteNum == 2) {image = down2;}break;case "left":if (spriteNum == 1) {image = left1;}if (spriteNum == 2) {image = left2;}break;case "right":if (spriteNum == 1) {image = right1;}if (spriteNum == 2) {image = right2;}break;}g2.drawImage(image, x, y, gp.tileSize, gp.tileSize, null);}
}

玩家添加图片资源、实现动画

在这里插入图片描述
按键动画效果

实现地图Background tiles(背景瓷砖或背景瓦片)

地图文件内容

1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 2 2 2 2 0 0 0 0 0 1
1 0 0 0 0 0 2 2 2 2 0 0 0 0 0 1
1 0 0 0 0 0 2 2 2 2 0 0 0 0 0 1
1 0 0 0 0 0 2 2 2 2 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

这里是通过文本文件存储数字，不同数字代表不同的瓷砖/瓦片，根据读取到的数字，绘制对应的瓷砖贴图实现的地图效果。1代表墙，2代表草地，3代表水