feat: migrate to turbo (#22)

* feat: migrate top turbo

* ci: ci test

* fix: fix codeql issues

* feat: ci test

* chore: lint

* chore: misc changes

* feat: rename vite helpers

* feat: use fetch to handle assets

* feat: update directory

* feat: fetch charword table

* feat: migrate download game data and detect missing voice files

* feat: symlink relative path

* feat: finish wrangler upload

* feat: migrate wrangler download

* feat: finish

* chore: auto update

* ci: update ci

* ci: update ci

---------

Co-authored-by: Halyul <Halyul@users.noreply.github.com>

packages/libs/libs/alpha_composite.js

@@ -0,0 +1,48 @@
+import sharp from 'sharp'
+import path from 'path'
+
+export const process = async (filename, maskFilename, extractedDir) => {
+    const image = sharp(path.join(extractedDir, filename)).removeAlpha()
+    const imageMeta = await image.metadata()
+    const imageBuffer = await image.toBuffer()
+    const mask = await sharp(path.join(extractedDir, maskFilename))
+        .extractChannel('blue')
+        .resize(imageMeta.width, imageMeta.height)
+        .toBuffer()
+
+    return sharp(imageBuffer).joinChannel(mask).toBuffer()
+}
+
+export const crop = async (buffer, rect) => {
+    const left = rect.y
+    const top = rect.x
+    const width = rect.h
+    const height = rect.w
+    const rotate = rect.rotate === 0 ? -90 : 0
+    const newImage = await sharp(buffer)
+        .rotate(90)
+        .extract({ left: left, top: top, width: width, height: height })
+        .resize(width, height)
+        .extract({ left: 0, top: 0, width: width, height: height })
+        .toBuffer()
+    return await sharp(newImage).rotate(rotate).toBuffer()
+}
+
+export const toBuffer = async (filename, extractedDir) => {
+    const file = path.join(extractedDir, filename)
+    const { data, info } = await sharp(file)
+        .raw()
+        .toBuffer({ resolveWithObject: true })
+    const { width, height, channels } = info
+    const pixelArray = new Uint8ClampedArray(data.buffer)
+    for (let i = 0; i < pixelArray.length; i += 4) {
+        let alpha = pixelArray[i + 3] / 255
+        pixelArray[i + 0] = pixelArray[i + 0] * alpha
+        pixelArray[i + 1] = pixelArray[i + 1] * alpha
+        pixelArray[i + 2] = pixelArray[i + 2] * alpha
+    }
+
+    return await sharp(pixelArray, { raw: { width, height, channels } })
+        .png()
+        .toBuffer()
+}