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assets/scripts/map/MapCityLogic.ts

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+import { _decorator, Node, Vec2, Vec3 } from 'cc';
+const { ccclass, property } = _decorator;
+
+import MapBaseLayerLogic from "./MapBaseLayerLogic";
+import CityLogic from "./entries/CityLogic";
+import MapUtil from "./MapUtil";
+import { MapCityData } from "./MapCityProxy";
+import { EventMgr } from '../utils/EventMgr';
+
+@ccclass('MapCityLogic')
+
+export default class MapCityLogic extends MapBaseLayerLogic {
+
+    protected onLoad(): void {
+        super.onLoad();
+        EventMgr.on("update_citys", this.onUpdateCitys, this);
+        EventMgr.on("update_city", this.onUpdateCity, this);
+    }
+
+    protected onDestroy(): void {
+        EventMgr.targetOff(this);
+        super.onDestroy();
+    }
+
+    protected onUpdateCitys(areaIndex: number, addIds: number[], removeIds: number[], updateIds: number[]): void {
+        // console.log("update_citys", arguments);
+        if (this._itemMap.has(areaIndex)) {
+            for (let i: number = 0; i < addIds.length; i++) {
+                this.addItem(areaIndex, this._cmd.cityProxy.getCity(addIds[i]));
+            }
+            for (let i: number = 0; i < removeIds.length; i++) {
+                this.removeItem(areaIndex, removeIds[i]);
+            }
+            for (let i: number = 0; i < updateIds.length; i++) {
+                this.updateItem(areaIndex, this._cmd.cityProxy.getCity(updateIds[i]));
+            }
+        }
+    }
+
+    protected onUpdateCity(city:MapCityData):void {
+        let areaIndex:number = MapUtil.getAreaIdByCellPoint(city.x, city.y);
+        if (this._itemMap.has(areaIndex)) {
+            this.addItem(areaIndex, city);
+        }
+    }
+
+    public setItemData(item: Node, data: any): void {
+        let cityData: MapCityData = data as MapCityData;
+        let position: Vec2 = MapUtil.mapCellToPixelPoint(new Vec2(cityData.x, cityData.y));
+        item.setPosition(new Vec3(position.x, position.y, 0));
+        item.getComponent(CityLogic).setCityData(cityData);
+    }
+
+    public getIdByData(data: any): number {
+        return (data as MapCityData).cityId;
+    }
+}