From b03a73b22bd252bbe4ab6098b83132a48de6cf37 Mon Sep 17 00:00:00 2001
From: sebastianmas-cyber <sebastian.mas2008@gmail.com>
Date: Thu, 15 Jan 2026 17:26:07 -0800
Subject: [PATCH 1/3] Added QR Code Scanner Extension

---
 scratch.qr.code.scanner.js | 112 +++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 scratch.qr.code.scanner.js

diff --git a/scratch.qr.code.scanner.js b/scratch.qr.code.scanner.js
new file mode 100644
index 0000000000..22ccfd0b5e
--- /dev/null
+++ b/scratch.qr.code.scanner.js
@@ -0,0 +1,112 @@
+(function(Scratch) {
+  'use strict';
+
+  // Load the jsQR library dynamically from a CDN
+  const script = document.createElement('script');
+  script.src = 'https://cdn.jsdelivr.net/npm/jsqr@1.4.0/dist/jsQR.min.js';
+  document.head.appendChild(script);
+
+  class QRCodeScanner {
+    constructor() {
+      this.lastResult = null;
+      this.detected = false;
+      this.isScanning = false;
+    }
+
+    getInfo() {
+      return {
+        id: 'qrcodescanner',
+        name: 'QR Scanner',
+        color1: '#4C97FF',
+        color2: '#3373CC',
+        blocks: [
+          {
+            opcode: 'scanScreen',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'scan screen for QR code'
+          },
+          {
+            opcode: 'isDetected',
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: 'is a QR code detected?'
+          },
+          {
+            opcode: 'getData',
+            blockType: Scratch.BlockType.REPORTER,
+            text: 'QR code data'
+          }
+        ]
+      };
+    }
+
+    /**
+     * Captures the stage using a more robust "frame capture" method.
+     */
+    scanScreen() {
+      if (typeof jsQR === 'undefined') {
+        console.warn('QR Scanner: jsQR library not loaded yet.');
+        return;
+      }
+
+      if (this.isScanning) return;
+      this.isScanning = true;
+
+      const runtime = Scratch.vm.runtime;
+      const renderer = runtime.renderer;
+
+      if (!renderer || !renderer.canvas) {
+        console.error('QR Scanner: Renderer or Canvas not found.');
+        this.isScanning = false;
+        return;
+      }
+
+      try {
+        const canvas = renderer.canvas;
+        const width = canvas.width;
+        const height = canvas.height;
+
+        // Create the off-screen canvas once
+        const snapshotCanvas = document.createElement('canvas');
+        snapshotCanvas.width = width;
+        snapshotCanvas.height = height;
+        const ctx = snapshotCanvas.getContext('2d');
+
+        // FORCE A RENDER: TurboWarp's canvas is often empty between frames.
+        // We tell the renderer to draw exactly now so the buffer is full.
+        renderer.draw(); 
+
+        // Grab the content immediately after the draw call
+        ctx.drawImage(canvas, 0, 0);
+        
+        const imageData = ctx.getImageData(0, 0, width, height);
+
+        // Scan the pixels
+        const code = jsQR(imageData.data, width, height, {
+          inversionAttempts: "dontInvert"
+        });
+
+        if (code && code.data) {
+          this.lastResult = code.data;
+          this.detected = true;
+        } else {
+          this.detected = false;
+        }
+      } catch (e) {
+        console.error('QR Scanner Error:', e);
+        this.detected = false;
+      }
+
+      this.isScanning = false;
+    }
+
+    isDetected() {
+      return this.detected;
+    }
+
+    getData() {
+      return this.detected ? this.lastResult : "";
+    }
+  }
+
+  Scratch.extensions.register(new QRCodeScanner());
+})(Scratch);
\ No newline at end of file

From 1220f2daa6c629031ccf1a018258dbbdb948d24c Mon Sep 17 00:00:00 2001
From: sebastianmas-cyber <sebastian.mas2008@gmail.com>
Date: Fri, 16 Jan 2026 11:05:44 -0800
Subject: [PATCH 2/3] Update scratch.qr.code.scanner.js

Co-authored-by: Brackets-Coder <142950368+Brackets-Coder@users.noreply.github.com>
---
 scratch.qr.code.scanner.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scratch.qr.code.scanner.js b/scratch.qr.code.scanner.js
index 22ccfd0b5e..f60978694b 100644
--- a/scratch.qr.code.scanner.js
+++ b/scratch.qr.code.scanner.js
@@ -15,7 +15,7 @@
 
     getInfo() {
       return {
-        id: 'qrcodescanner',
+        id: 'sweetsebiQR',
         name: 'QR Scanner',
         color1: '#4C97FF',
         color2: '#3373CC',

From 86e22e4f876a79f5b7063a858198e645c805bfd7 Mon Sep 17 00:00:00 2001
From: sebastianmas-cyber <sebastian.mas2008@gmail.com>
Date: Fri, 16 Jan 2026 11:05:55 -0800
Subject: [PATCH 3/3] Update scratch.qr.code.scanner.js

Co-authored-by: Brackets-Coder <142950368+Brackets-Coder@users.noreply.github.com>
---
 scratch.qr.code.scanner.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scratch.qr.code.scanner.js b/scratch.qr.code.scanner.js
index f60978694b..aab28e8f0f 100644
--- a/scratch.qr.code.scanner.js
+++ b/scratch.qr.code.scanner.js
@@ -23,17 +23,17 @@
           {
             opcode: 'scanScreen',
             blockType: Scratch.BlockType.COMMAND,
-            text: 'scan screen for QR code'
+            text: Scratch.translate('scan screen for QR code')
           },
           {
             opcode: 'isDetected',
             blockType: Scratch.BlockType.BOOLEAN,
-            text: 'is a QR code detected?'
+            text: Scratch.translate('is a QR code detected?')
           },
           {
             opcode: 'getData',
             blockType: Scratch.BlockType.REPORTER,
-            text: 'QR code data'
+            text: Scratch.translate('QR code data')
           }
         ]
       };