Editing Openai/694f5245-1110-800b-b182-7c2accd50046 (section)

==== 你要 GEMINI 做的是：在 OPENING 狀態時，gameLoop 只畫 opening，不碰 room/enemy/grid。 ====

把這段 patch 丟給 GEMINI（超關鍵）👇

<syntaxhighlight lang="text">Patch S / Fix crash after Opening: guard draw() by uiState + safe arrays

Bug:
After adding Opening, game crashes in gameLoop:
TypeError: Cannot read properties of undefined (reading '0')
Stack: draw() -> gameLoop()

Fix:
1) When uiState === "OPENING", do NOT call gameplay draw/update that depends on room/enemy/projectile arrays.
Only render the opening screen.
2) Add defensive checks in drawGameplay():
* if (!currentRoom || !currentRoom.tiles || !currentRoom.tiles.length) return;
* if (!Array.isArray(enemies)) enemies = [];
* if (!Array.isArray(projectiles)) projectiles = [];
3) Ensure initialization order:
* initGameData() runs BEFORE switching to COMBAT/SAFE room state.
* Opening should switch to MENU or SAFE_BRIEFING only after initGameData() is done.

Example structure:
function gameLoop() {
  if (uiState === "OPENING") { drawOpening(); requestAnimationFrame(gameLoop); return; }
  updateGameplay();
  drawGameplay();
  requestAnimationFrame(gameLoop);
}

Acceptance:
* Opening plays and can be skipped.
* No crash during opening.
* After opening, the first room loads normally.

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