初始化

client/src/memoryhelper.js

@@ -0,0 +1,28 @@
+export class MemoryHelper {
+  /**
+   * @param {ArrayBuffer} buffer 
+   * @param {number} bitOffset
+   * @param {boolean} value
+   */
+  static writeSingleBit(buffer, bitOffset, value) {
+    let view = new Uint8Array(buffer);
+    const index = Math.floor(bitOffset / 8);
+    bitOffset = bitOffset % 8;
+    const byte = view[index];
+    let newByte = 1 << bitOffset;
+    if(value) {
+      newByte = newByte | byte;
+    }
+    else {
+      newByte = ~newByte & byte;
+    }
+    view[index] = newByte;
+  }
+
+  /**
+   * @return {Number}
+   */
+  static get sizeOfInt() {
+    return 4;
+  }
+}