adding basic modal system

assets/Scripts/Services/ModalWindowSystem/ModalWindowManager.ts

@@ -0,0 +1,21 @@
+import { Component, instantiate, Node, Prefab, _decorator } from "cc";
+import { ModalWindow } from "./ModalWindow";
+const { ccclass, property } = _decorator;
+
+@ccclass("ModalWindowManager")
+export class ModalWindowManager extends Component {
+    @property(Prefab) private availableWindows: Prefab[] = [];
+
+    public async showModal<TParams, TResult>(name: string, params: TParams): Promise<TResult> {
+        const windowPrefab: Prefab = this.availableWindows.find((w) => w.name === name);
+        const windowNode: Node = instantiate(windowPrefab);
+        windowNode.setParent(this.node);
+
+        const modalWindow: ModalWindow<TParams, TResult> = <ModalWindow<TParams, TResult>>windowNode.getComponent(name);
+
+        const result: TResult = await modalWindow.runAsync(params);
+        windowNode.destroy();
+
+        return result;
+    }
+}