From 32eea268559a1360cc00fcd5b180e74104e0c395 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 6 Apr 2024 19:45:26 +0200
Subject: Performance

---
 worker.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 worker.js

(limited to 'worker.js')

diff --git a/worker.js b/worker.js
new file mode 100644
index 0000000..f89a699
--- /dev/null
+++ b/worker.js
@@ -0,0 +1,14 @@
+let canvas, screen;
+
+self.onmessage = (msg) => {
+  if (msg.data == "clear") {
+    screen.clearRect(0, 0, canvas.width, canvas.height);
+  } else if ("canvas" in msg.data) {
+    canvas = msg.data.canvas;
+    screen = canvas.getContext("2d");
+  } else {
+    [color, x, y, width, height] = msg.data;
+    screen.fillStyle = color;
+    screen.fillRect(x, y, width, height);
+  }
+};
-- 
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