Move to Renderer V2

packages/utils/src/NitroBundle.ts

@@ -0,0 +1,58 @@
+import { inflate } from 'pako';
+import { Assets, Texture } from 'pixi.js';
+import { ArrayBufferToBase64 } from './ArrayBufferToBase64';
+import { BinaryReader } from './BinaryReader';
+
+export class NitroBundle
+{
+    private static TEXT_DECODER: TextDecoder = new TextDecoder('utf-8');
+
+    private _jsonFile: Object = null;
+    private _texture: Texture = null;
+
+    public static async from(buffer: ArrayBuffer): Promise<NitroBundle>
+    {
+        const bundle = new NitroBundle();
+
+        await bundle.parse(buffer);
+
+        return bundle;
+    }
+
+    public async parse(arrayBuffer: ArrayBuffer): Promise<void>
+    {
+        const binaryReader = new BinaryReader(arrayBuffer);
+
+        let fileCount = binaryReader.readShort();
+
+        while(fileCount > 0)
+        {
+            const fileNameLength = binaryReader.readShort();
+            const fileName = binaryReader.readBytes(fileNameLength).toString();
+            const fileLength = binaryReader.readInt();
+            const buffer = binaryReader.readBytes(fileLength);
+            const inflatedBuffer = inflate(buffer.toArrayBuffer());
+
+            if(fileName.endsWith('.json'))
+            {
+                this._jsonFile = JSON.parse(NitroBundle.TEXT_DECODER.decode(inflatedBuffer));
+            }
+            else
+            {
+                this._texture = await Assets.load<Texture>(`data:image/png;base64,${ ArrayBufferToBase64(inflatedBuffer) }`);
+            }
+
+            fileCount--;
+        }
+    }
+
+    public get jsonFile(): Object
+    {
+        return this._jsonFile;
+    }
+
+    public get texture(): Texture
+    {
+        return this._texture;
+    }
+}