Move to Renderer V2

packages/utils/src/BinaryWriter.ts

@@ -0,0 +1,109 @@
+import { IBinaryWriter } from '@nitrots/api';
+
+export class BinaryWriter implements IBinaryWriter
+{
+    private _buffer: Uint8Array;
+    private _position: number;
+
+    constructor()
+    {
+        this._buffer = new Uint8Array();
+        this._position = 0;
+    }
+
+    public writeByte(byte: number): IBinaryWriter
+    {
+        const array = new Uint8Array(1);
+
+        array[0] = byte;
+
+        this.appendArray(array);
+
+        return this;
+    }
+
+    public writeBytes(bytes: ArrayBuffer | number[]): IBinaryWriter
+    {
+        const array = new Uint8Array(bytes);
+
+        this.appendArray(array);
+
+        return this;
+    }
+
+    public writeShort(short: number): IBinaryWriter
+    {
+        const array = new Uint8Array(2);
+
+        array[0] = short >> 8;
+        array[1] = short & 0xFF;
+
+        this.appendArray(array);
+
+        return this;
+    }
+
+    public writeInt(integer: number): IBinaryWriter
+    {
+        const array = new Uint8Array(4);
+
+        array[0] = integer >> 24;
+        array[1] = integer >> 16;
+        array[2] = integer >> 8;
+        array[3] = integer & 0xFF;
+
+        this.appendArray(array);
+
+        return this;
+    }
+
+    public writeString(string: string, includeLength: boolean = true): IBinaryWriter
+    {
+        const array = new TextEncoder().encode(string);
+
+        if(includeLength)
+        {
+            this.writeShort(array.length);
+            this.appendArray(array);
+        }
+        else
+        {
+            this.appendArray(array);
+        }
+
+        return this;
+    }
+
+    private appendArray(array: Uint8Array): void
+    {
+        if(!array) return;
+
+        const mergedArray = new Uint8Array(((this.position + array.length) > this._buffer.length) ? (this.position + array.length) : this._buffer.length);
+
+        mergedArray.set(this._buffer);
+        mergedArray.set(array, this.position);
+
+        this._buffer = mergedArray;
+        this.position += array.length;
+    }
+
+    public getBuffer(): ArrayBuffer
+    {
+        return this._buffer.buffer;
+    }
+
+    public get position(): number
+    {
+        return this._position;
+    }
+
+    public set position(pos: number)
+    {
+        this._position = pos;
+    }
+
+    public toString(encoding?: string): string
+    {
+        return new TextDecoder(encoding).decode(this._buffer);
+    }
+}