ADD file via upload

src/UpdateThread.java

@@ -0,0 +1,22 @@
+package cn.edu.caztc.sokobangame;
+import javax.swing.JPanel;
+
+public class UpdateThread extends Thread{  
+    JPanel panel;  
+    public UpdateThread(JPanel panel) {  
+        this.panel = panel;  
+    }  
+      
+    @Override  
+    public void run() {  
+        while(true){  
+            panel.repaint();  
+            try {  
+                Thread.sleep(10);  
+            } catch (InterruptedException e) {  
+                e.printStackTrace();  
+            }  
+        }  
+    }  
+      
+}