From e704837f5c987a840c6ef690807c319425b85ea5 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Mon, 13 Jan 2003 13:37:43 +0000
Subject: fix off by one error

svn-id: r6442
---
 scumm/boxes.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'scumm/boxes.cpp')

diff --git a/scumm/boxes.cpp b/scumm/boxes.cpp
index c57ca1e27e..088ce91173 100644
--- a/scumm/boxes.cpp
+++ b/scumm/boxes.cpp
@@ -136,9 +136,9 @@ int Scumm::getScale(int box, int x, int y)
 	if (_features & GF_AFTER_V8) {
 		int slot = FROM_LE_32(ptr->v8.scaleSlot);
 		if (slot) {
-			assert(0 <= slot && slot < 20);
+			assert(1 <= slot && slot <= 20);
 			int scaleX = 0, scaleY = 0;
-			ScaleSlot &s = _scaleSlots[slot];
+			ScaleSlot &s = _scaleSlots[slot-1];
 
 			if (s.y1 == s.y2 && s.x1 == s.x2)
 				error("Invalid scale slot %d", slot);
-- 
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