Item refactoring

assets/Scripts/Game/Items/XP.ts

@@ -0,0 +1,14 @@
+import { Animation, Vec3, _decorator } from "cc";
+import { Item } from "./Item";
+
+const { ccclass, property } = _decorator;
+
+@ccclass("XP")
+export class XP extends Item {
+    @property(Animation) private animation: Animation;
+
+    public setup(position: Vec3): void {
+        super.setup(position);
+        this.animation.play("DropStart");
+    }
+}