边界检测

src/main/java/com/example/tankbattle/Tank.java

@@ -86,6 +86,24 @@ public class Tank {
         if (this.group == Group.BAD && random.nextInt(100) > 95) {
             randomDir();
         }
+
+        boundsCheck();
+    }
+
+    private void boundsCheck() {
+        if (this.x < 0) {
+            this.x = 2;
+        }
+        if (this.y < 28) {
+            this.y = 28;
+        }
+
+        if (this.x > TankFrame.GAME_WIDTH - Tank.WIDTH) {
+            this.x = TankFrame.GAME_WIDTH - Tank.WIDTH;
+        }
+        if (this.y > TankFrame.GAME_HEIGHT - Tank.HEIGHT) {
+            this.y = TankFrame.GAME_HEIGHT - Tank.HEIGHT;
+        }
     }
 
     private void randomDir() {