init: add workspace files

world/obj/money/exp.js

@@ -0,0 +1,12 @@
+this.inherits(OBJ);
+this.set({
+    name: "经验",
+    desc: "你获得的经验，潜能",
+    unit: "点",
+    value: 0,
+    grade:1
+});
+this.on_receive = function (me) {
+    if (!this.count) return false;
+    me.add_exp(this.count, this.count);
+}