Don't zip the file ahead

.github/workflows/update.yml

@@ -3,7 +3,7 @@ on:
   push:
     paths-ignore:
       - 'README.md'
-      - 'demo/snake.zip'
+      - 'demo/snake.com'
       - 'demo/qr.png'
   workflow_dispatch:
 permissions:
@@ -20,14 +20,13 @@ jobs:
     - uses: actions/checkout@v4
     - run: |
         sudo apt-get install qrencode nasm python3 -y > /dev/null
-        nasm snake.asm -o snake.com
+        nasm snake.asm -o demo/snake.com
         gcc -Os -w -xc - <<< "main;"
-        xxd -p snake.com | python3 docs/update.py
-        qrencode -r snake.com -8 -o demo/qr.png
-        zip demo/snake.zip snake.com -q
+        xxd -p demo/snake.com | python3 docs/update.py
+        qrencode -r demo/snake.com -8 -o demo/qr.png
         git config --global user.email "$GITHUB_REPOSITORY_OWNER_ID+$GITHUB_REPOSITORY_OWNER@users.noreply.github.com"
         git config --global user.name "$GITHUB_REPOSITORY_OWNER"
-        git commit -am "${GITHUB_WORKFLOW,,}" -q
+        git commit -am "${GITHUB_WORKFLOW,,}" -q || true
         git push -q
     - uses: actions/upload-pages-artifact@v3
       with:

.gitignore

@@ -1,2 +1 @@
-snake.com
 a.out

demo/main.js

@@ -1,14 +1,33 @@
 const canvas = document.getElementById("jsdos");
+const xhr = new XMLHttpRequest();
+const zip = hex => {
+    const int2hex = x => [x, x >> 8, x >> 16, x >> 24].map(i => i & 0xff);
+    const length = int2hex(hex.length);
+    return new Uint8Array([0x50, 0x4b, 3, 4, ...Array(14).fill(0),
+      ...length, ...length, 8, 0, 0, 0, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x63,
+      0x6f, 0x6d, ...hex, 0x50, 0x4b, 1, 2, ...Array(16).fill(0),
+      ...length, ...length, 8, ...Array(11).fill(0), 0x80, 0x81, 0, 0, 0, 0,
+      0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x50, 0x4b,
+      5, 6, 0, 0, 0, 0, 1, 0, 1, 0, 0x36, 0, 0, 0,
+      ...int2hex(hex.length + 0x26), 0, 0]);
+};
 
-Dos(canvas, { cycles: 2, onprogress: ()=>{} }).ready((fs, main) =>
-    fs.extract("snake.zip").then(() =>
-        main(["snake.com"]).then(ci => {
-            swipedetect(swipedir => swipedir && ci.simulateKeyPress(36 + swipedir));
-            document.title = "Snake";
-            span(canvas);
-        })
+xhr.open('GET', 'snake.com', true);
+xhr.responseType = 'arraybuffer';
+
+xhr.onload = _ =>
+    Dos(canvas, { cycles: 2, onprogress: ()=>{} }).ready((fs, main) =>
+        fs.extract(URL.createObjectURL(new Blob([zip(new Uint8Array(xhr.response))]))).then(() =>
+            main(["main.com"]).then(ci => {
+                swipedetect(swipedir => swipedir && ci.simulateKeyPress(36 + swipedir));
+                document.title = "Snake";
+                span(canvas);
+            })
+        )
     )
-);
+;
+
+xhr.send();
 
 function span(element) {
     element.style.height = "auto";

main.sh

@@ -1,5 +1,4 @@
 #!/bin/bash
 set -e
-nasm -f bin snake.asm -o snake.com
-zip demo/snake.zip snake.com
+nasm -f bin snake.asm -o demo/snake.com
 python3 -m http.server -d demo