坦克大战(一期)-将子弹换成图片

src/com/msb/Bullet.java

@@ -31,10 +31,19 @@ public class Bullet extends Frame {
             return;
         }
 
-        Color color = g.getColor();
+        /*Color color = g.getColor();
         g.setColor(Color.RED);
         g.fillOval(x, y, WIDTH, HEIGHT);
-        g.setColor(color);  //还原画笔原来的颜色
+        g.setColor(color);*/  //还原画笔原来的颜色
+
+        switch (dir) {
+            case UP: g.drawImage(ResourcesMgr.bulletU, x, y, null); break;
+            case DOWN: g.drawImage(ResourcesMgr.bulletD, x, y, null); break;
+            case LEFT: g.drawImage(ResourcesMgr.bulletL, x, y, null); break;
+            case RIGHT: g.drawImage(ResourcesMgr.bulletR, x, y, null); break;
+            default: break;
+        }
+
         moving();
     }
 

src/com/msb/ResourcesMgr.java

@@ -13,6 +13,7 @@ import java.io.IOException;
 public class ResourcesMgr {
 
     public static BufferedImage tankL, tankR, tankU, tankD;
+    public static BufferedImage bulletL, bulletR, bulletU, bulletD;
 
     static {
         try {
@@ -20,6 +21,11 @@ public class ResourcesMgr {
             tankR = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/tankR.gif"));
             tankU = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/tankU.gif"));
             tankD = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/tankD.gif"));
+
+            bulletL = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/bulletL.gif"));
+            bulletR = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/bulletR.gif"));
+            bulletU = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/bulletU.gif"));
+            bulletD = ImageIO.read(ResourcesMgr.class.getClassLoader().getResourceAsStream("images/bulletD.gif"));
         } catch (IOException e) {
             e.printStackTrace();
         }

src/com/msb/TankFrame.java

@@ -29,6 +29,7 @@ public class TankFrame extends Frame {
         setSize(GAME_WIDTH, GAME_HEIGHT);
         setResizable(true);
         setVisible(true);
+        setBackground(Color.BLACK);
 
         addWindowListener(new WindowAdapter() {
             @Override
@@ -46,7 +47,7 @@ public class TankFrame extends Frame {
     public void paint(Graphics g) {
 //        super.paint(g);
         Color color = g.getColor();
-        g.setColor(Color.BLACK);
+        g.setColor(Color.WHITE);
         g.drawString("子弹的数量：" + bullets.size(), 10, 60);
         g.setColor(color);
         tank.paint(g);
@@ -65,7 +66,7 @@ public class TankFrame extends Frame {
         }
         Graphics gOffScreen = offScreenImage.getGraphics();
         Color color = gOffScreen.getColor();
-        gOffScreen.setColor(Color.WHITE);
+        gOffScreen.setColor(Color.BLACK);
         gOffScreen.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
         gOffScreen.setColor(color);
         paint(gOffScreen);