first commit

assets/scripts/common/LoadingLogic.ts

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+import { _decorator, Component, ProgressBar } from 'cc';
+import { EventMgr } from '../utils/EventMgr';
+const { ccclass, property } = _decorator;
+
+@ccclass('LoadingLogic')
+export default class LoadingLogic extends Component {
+    @property(ProgressBar)
+    bar: ProgressBar | null = null;
+    protected onLoad(): void {
+        this.bar.progress = 0;
+        EventMgr.on("load_progress", this.onProgress, this);
+        EventMgr.on("load_complete", this.onComplete, this);
+    }
+    protected onDestroy(): void {
+        EventMgr.targetOff(this);
+    }
+    protected onProgress(precent: number): void {
+        this.bar.progress = precent;
+    }
+    protected onComplete(): void {
+        this.node.parent = null;
+    }
+}
+
+