添加一个物品消耗通用方法

shared/consts/abilityConst.ts

@@ -51,4 +51,12 @@ export enum ABI_TYPE{
     /**属性固定值加成(百分比） */
     TYPE102 = 102,
   }
-  
+  
+  export enum ABI_STAGE {
+    HP = 1,
+    ATK = 2,
+    DEF = 3,
+    MDEF = 4,
+    AGI = 5,
+    LUK = 6
+  }

shared/db/Item.ts

@@ -49,10 +49,11 @@ export default class Item extends BaseModel {
   }
 
   public static async decreaseItems(roleId: string, items: Array<{id: number, count: number}>, lean = true) {
-    let updateItems = new Array<{id: number, count: number}>(), hasError: boolean = false;
+    let updateItems = new Array<{id: number, count: number}>(), hasError: boolean = false, result = new Array();
     for(let {id, count} of items) {    
       const rec = await ItemModel.findOneAndUpdate({roleId, id, count: {$gte: count} },{ $inc: { count: -1 * count }}, {new: true}).lean(lean);
       if(rec) {
+        result.push(rec);
         updateItems.push({id, count});
       } else {
         hasError = true; break;
@@ -62,9 +63,9 @@ export default class Item extends BaseModel {
       for(let {id, count} of updateItems) { 
         await ItemModel.findOneAndUpdate({roleId, id },{ $inc: { count }}, {new: true}).lean(lean);
       } 
-      return false
+      return {hasError: true}
     } else {
-      return true
+      return {hasError: false, result}
     }
   }
 

shared/db/Role.ts

@@ -242,6 +242,11 @@ export default class Role extends BaseModel {
     return result;
   }
 
+  public static async costCoin(roleId: string, cnt: number, lean = true) {
+    let result = await RoleModel.findOneAndUpdate({roleId, coin: {$gte: cnt}}, { $inc: { coin: -cnt } }, { "new": true}).lean(lean);
+    return result;
+  }
+
   public static async costGold(roleId: string, cnt: number, lean = true) {
     let result = await RoleModel.findOneAndUpdate({roleId, gold: {$gte: cnt}}, { $inc: { gold: -cnt, totalCost: cnt } }, { "new": true}).lean(lean);
     return result;