From 185dc5594cfaf495df2f0fd40d21e6eaa888260e Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sat, 28 Mar 2026 18:26:10 +0000
Subject: [PATCH] Respawn colour shadow when color input is disconnected from
 scene blocks

When dragging a colour list out of sky/ground/background blocks, the input
slot was left empty. Now uses setShadowDom to configure a colour shadow so
Blockly automatically respawns it when the connected block is removed.

https://claude.ai/code/session_018BDZmtQcAE2kbxPdRhpLKf
---
 blocks/scene.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/blocks/scene.js b/blocks/scene.js
index f5f57ef4..3311f9e8 100644
--- a/blocks/scene.js
+++ b/blocks/scene.js
@@ -146,6 +146,17 @@ function initSceneColourLikeBlock(block, cfg) {
     subtreeInputName: inputName,
     includeSelfDelete: false,
   });
+
+  if (cfg.inputColor) {
+    const input = block.getInput(inputName);
+    if (input?.connection) {
+      const shadowDom = Blockly.utils.xml.textToDom(
+        `<shadow type="colour"><field name="COLOR">${cfg.inputColor}</field></shadow>`,
+      );
+      input.connection.setShadowDom(shadowDom);
+      input.connection.respawnShadow_();
+    }
+  }
 }
 
 export function cacheMaterialState(mapBlock) {