剧情弹幕：添加接口

shared/domain/roleField/barrage.ts

@@ -0,0 +1,22 @@
+import { ScriptBarrageType } from '../../db/ScriptBarrage';
+import { getSeconds } from '../../pubUtils/timeUtil';
+
+export class BarrageReturn {
+    code: string;      // code
+    warId: number;     // 关卡id
+    rid: string;       // 剧本id
+    index: string;     // 对话索引id
+    content: string;   // 弹幕内容
+    createTime: number; // 发送时间
+
+    constructor(barrage: ScriptBarrageType) {
+        if(barrage) {
+            this.code = barrage.code;
+            this.warId = barrage.warId;
+            this.rid = barrage.rid;
+            this.index = barrage.index;
+            this.content = barrage.content;
+            this.createTime = getSeconds(barrage.createdAt);
+        }
+    }
+}