军团活动：修复活动结束之后还继续挑战的bug

game-server/app/services/guildActivity/cityActivityObj.ts

@@ -12,6 +12,7 @@ export class CityActivityObject {
     private guilds: Map<string, number> = new Map();  // 军团所在的城池 guildCode => cityId
     private historyCity: Map<string, number> = new Map();  // 获取自己打开过的城池的页面 roleId => cityId
     private sentCity: string[] = [];
+    private startTime: number = 0;
 
     private getKey(serverId: number, cityId: number) {
         return `${serverId}_${cityId}`;
@@ -36,6 +37,14 @@ export class CityActivityObject {
         }
     }
 
+    public startActivity() {
+        this.startTime = Date.now();
+    }
+
+    public getTimeGap() {
+        return Date.now() - this.startTime;
+    }
+
     public hasSent(serverId: number, cityId: number) {
         let key = this.getKey(serverId, cityId);
         return this.sentCity.indexOf(key) != -1;