添加天梯排行榜，修复setHour有时差的bug

shared/db/Role.ts

@@ -8,6 +8,7 @@ import { shouldRefresh } from '../pubUtils/util';
   * 角色字段接口
 */
 @index({ roleId: 1 })
+@index({ towerLv: -1, towerUpTime: 1 })
 // @index({ userInfo.uid: 1, serverId: 1 })
 export default class Role extends BaseModel {
 
@@ -100,6 +101,8 @@ export default class Role extends BaseModel {
   // 天梯相关
   @prop({ required: true, default: 1 })
   towerLv: number;						// 天梯当前层数
+  @prop({ required: true, default: new Date() })
+  towerUpTime: Date;					// 天梯爬到这一层的时间
 
   @prop({ required: true, default: HANG_UP_CONSTS.MAX_SPD_UP_CNT})
   hangUpSpdUpCnt: number; // 挂机加速次数
@@ -155,7 +158,7 @@ export default class Role extends BaseModel {
   }
   
   public static async towerLvUp(roleId: string, lean = true) {
-    let role = await RoleModel.findOneAndUpdate({roleId}, {$inc: {towerLv: 1}}, {new: true}).lean(lean);
+    let role = await RoleModel.findOneAndUpdate({roleId}, {$inc: {towerLv: 1}, towerUpTime: new Date()}, {new: true}).lean(lean);
     return role;
   }
 
@@ -179,7 +182,6 @@ export default class Role extends BaseModel {
   }
 
   public static async levelup(roleId: string, lv: number, exp: number, lean = true) {
-    console.log(lv, exp)
     let role = await RoleModel.findOneAndUpdate({roleId}, {$set: { exp, lv }}, {new: true}).lean(lean);
     return role;
   }
@@ -254,6 +256,17 @@ export default class Role extends BaseModel {
     }
     return role;
   }
+
+  // 获取排行榜
+  public static async getRank(type: string, fields: Array<string>, page = 1, limit = 100, lean = true) {
+    let sortBy = {};
+    if(type == 'tower') {
+      sortBy['towerLv'] = -1;
+      sortBy['towerUpTime'] = 1;
+    }
+    const ranks = await RoleModel.find().select(fields.join(' ')).sort(sortBy).limit(limit).skip((page - 1) * limit).lean(lean);
+    return ranks;
+  }
 }
 
 export const RoleModel = getModelForClass(Role);