fix(scenes) 种田系统测试，添加按钮等

scenes/testScenes/ItemTestScene.js

@@ -153,35 +153,58 @@ export default class ItemTestScene extends Phaser.Scene {
     });
     
     this.input.keyboard.on('keydown-TWO', () => {
-      // 在单位附近创建食物类物品
-      const x = unit.x + Phaser.Math.Between(-100, 100);
-      const y = unit.y + Phaser.Math.Between(-100, 100);
-      this.itemManager.createItemByType('food', x, y);
+      this.itemManager.createItem('wheat_seed', 0, 0);
     });
     
     this.input.keyboard.on('keydown-THREE', () => {
-      // 在单位附近创建工具类物品
-      const x = unit.x + Phaser.Math.Between(-100, 100);
-      const y = unit.y + Phaser.Math.Between(-100, 100);
-      this.itemManager.createItemByType('tool', x, y);
+      this.itemManager.createItem('wooden_sword', 0, 0);
     });
     
     this.input.keyboard.on('keydown-FOUR', () => {
+      // 清理所有物品
       this.itemManager.clearAllItems();
-      this.itemInfoText.setText('所有物品已清理');
     });
     
     this.input.keyboard.on('keydown-SPACE', () => {
       this.scene.start('BootScene');
     });
     
-    // 监听物品点击事件
-    this.events.on('item-clicked', (item) => {
-      this.showItemInfo(item);
+    // 添加返回菜单按钮
+    this.createReturnButton();
+  }
+  
+  /**
+   * 创建返回菜单按钮
+   */
+  createReturnButton() {
+    // 创建按钮背景
+    const button = this.add.rectangle(10, 250, 150, 40, 0x333333);
+    button.setOrigin(0, 0);
+    button.setScrollFactor(0, 0);
+    button.setDepth(10);
+    button.setInteractive({ useHandCursor: true });
+    
+    // 按钮文本
+    const buttonText = this.add.text(25, 260, '返回菜单', {
+      fontSize: '16px',
+      fill: '#ffffff',
+      fontFamily: 'Arial'
+    });
+    buttonText.setScrollFactor(0, 0);
+    buttonText.setDepth(11);
+    
+    // 按钮事件
+    button.on('pointerdown', () => {
+      this.scene.start('BootScene');
     });
     
-    // 创建一些交互按钮
-    this.createButtons();
+    button.on('pointerover', () => {
+      button.setFillStyle(0x555555);
+    });
+    
+    button.on('pointerout', () => {
+      button.setFillStyle(0x333333);
+    });
   }
   
   /**