From a55dab43b2a1bffa8668085c83f12a1c0b1f8e6b Mon Sep 17 00:00:00 2001
From: Asdow <20314541+Asdow@users.noreply.github.com>
Date: Thu, 19 Jan 2023 00:47:01 +0200
Subject: [PATCH] Prevent illegal array access if GridNo = NOWHERE (#93)

---
 TileEngine/renderworld.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/TileEngine/renderworld.cpp b/TileEngine/renderworld.cpp
index 13c86f78b..5258b73a0 100644
--- a/TileEngine/renderworld.cpp
+++ b/TileEngine/renderworld.cpp
@@ -1034,6 +1034,11 @@ inline UINT16 * GetShadeTable(LEVELNODE * pNode, SOLDIERTYPE * pSoldier, SOLDIER
 	// Shade guy always lighter than scene default!
 	{
 		const auto GridNo = pSoldier->sGridNo;
+		if (GridNo == NOWHERE)
+		{
+			pShadeTable = pPaletteTable->pCurrentShade = pPaletteTable->pShades[DEFAULT_SHADE_LEVEL];
+			return pShadeTable;
+		}
 		UINT8 ubShadeLevel = gpWorldLevelData[GridNo].pLandHead->ubShadeLevel;
 		// If merc is on a roof, shade according to roof brightness
 		if (pSoldier->pathing.bLevel > 0 && gpWorldLevelData[GridNo].pRoofHead != NULL)