advanced usage example

examples/advanced.js

@@ -0,0 +1,43 @@
+const { init, WzFile, WzMapleVersion, WzBinaryProperty, WzImage, WzDirectory } = require('..')
+
+async function main () {
+  // Must call init() first to initialize Webassembly
+  // before calling other API in browser.
+  // In nodejs it is just return Promise.resolve()
+  await init()
+
+  // Construct a WzFile object
+  const wz = new WzFile('C:\\Nexon\\MapleStory\\Sound.wz', WzMapleVersion.BMS)
+
+  // Pass it to parseWzFile() to receive parse result
+  const result = WzFile.createParseResult()
+  const r = await wz.parseWzFile(/* out */ result, /* parse main directory only */ true)
+  if (!r) {
+    throw new Error(result.message)
+  }
+
+  // Access main directory
+  /** @type {WzDirectory} */
+  const mainDirectory = wz.wzDirectory // ! not null
+
+  /** @type {WzImage | null} */
+  const img = mainDirectory.at('Bgm50.img')
+  if (img === null) throw new Error('404')
+
+  // Parse the image before use it
+  await img.parseImage()
+
+  // Access image properties
+  const props = img.wzProperties // getter returns Set<WzImageProperty>
+
+  for (const prop of props) {
+    if (prop instanceof WzBinaryProperty) {
+      console.log(prop.fullPath)
+      // do something
+      // prop.saveToFile()
+    }
+  }
+  wz.dispose()
+}
+
+main()