From aa3007761fc264f0f1894b38e6d65ffe6a6208fc Mon Sep 17 00:00:00 2001
From: YOUNGHO LEE <youngholee205205@gmail.com>
Date: Thu, 2 Jul 2026 22:52:42 +0900
Subject: [PATCH 1/2] fix: prevent TypeError when collision blocks run on an
 empty textbox

---
 src/playground/blocks/block_judgement.js |  5 +++++
 src/playground/blocks/block_moving.js    | 10 ++++++++++
 src/util/utils.js                        |  4 ++++
 3 files changed, 19 insertions(+)

diff --git a/src/playground/blocks/block_judgement.js b/src/playground/blocks/block_judgement.js
index 853683dea2..dd7b5ca1b2 100644
--- a/src/playground/blocks/block_judgement.js
+++ b/src/playground/blocks/block_judgement.js
@@ -167,6 +167,11 @@ module.exports = {
                     const reg = /wall/;
                     const ath = 0.2;
                     const object = sprite.object;
+                    // 내용이 빈 글상자는 캔버스 렌더러에서 bounds가 null이라
+                    // 충돌을 판정할 수 없으므로 닿지 않은 것으로 처리한다.
+                    if (sprite.type === 'textBox' && !GEHelper.getTransformedBounds(object)) {
+                        return false;
+                    }
                     const isWall = reg.test(targetSpriteId);
                     const collision = ndgmr.checkPixelCollision;
                     if (isWall) {
diff --git a/src/playground/blocks/block_moving.js b/src/playground/blocks/block_moving.js
index 9cf1705251..8a165fd432 100644
--- a/src/playground/blocks/block_moving.js
+++ b/src/playground/blocks/block_moving.js
@@ -1,3 +1,5 @@
+import { GEHelper } from '../../graphicEngine/GEHelper';
+
 module.exports = {
     getBlocks() {
         function moveInToBound(object, wall) {
@@ -110,6 +112,14 @@ module.exports = {
                 class: 'walk',
                 isNotFor: [],
                 func(sprite, script) {
+                    // 내용이 빈 글상자는 캔버스 렌더러에서 bounds가 null이라
+                    // 벽 충돌을 계산할 수 없으므로 튕기지 않고 넘어간다.
+                    if (
+                        sprite.type === 'textBox' &&
+                        !GEHelper.getTransformedBounds(sprite.object)
+                    ) {
+                        return script.callReturn();
+                    }
                     const threshold = 0;
                     const method = sprite.parent.getRotateMethod();
 
diff --git a/src/util/utils.js b/src/util/utils.js
index b2e6176d62..dea8347846 100644
--- a/src/util/utils.js
+++ b/src/util/utils.js
@@ -1345,6 +1345,10 @@ Entry.getKeyCodeMap = function () {
 };
 
 Entry.checkCollisionRect = function (rectA, rectB) {
+    // 내용이 빈 글상자처럼 bounds를 구할 수 없는(null) 대상은 충돌하지 않은 것으로 처리한다.
+    if (!rectA || !rectB) {
+        return false;
+    }
     return !(
         rectA.y + rectA.height < rectB.y ||
         rectA.y > rectB.y + rectB.height ||

From d396cda636bd088dd7feaf31e3e8511a668ba7fa Mon Sep 17 00:00:00 2001
From: YOUNGHO LEE <youngholee205205@gmail.com>
Date: Fri, 3 Jul 2026 17:12:13 +0900
Subject: [PATCH 2/2] fix: reset textbox wall collision state when bounds are
 missing

---
 src/playground/blocks/block_moving.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/playground/blocks/block_moving.js b/src/playground/blocks/block_moving.js
index 8a165fd432..55db1c5092 100644
--- a/src/playground/blocks/block_moving.js
+++ b/src/playground/blocks/block_moving.js
@@ -118,6 +118,7 @@ module.exports = {
                         sprite.type === 'textBox' &&
                         !GEHelper.getTransformedBounds(sprite.object)
                     ) {
+                        sprite.collision = Entry.Utils.COLLISION.NONE;
                         return script.callReturn();
                     }
                     const threshold = 0;