From 9df74402e5474652b7a041bc4f9d9ec4ac6a0db6 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Tue, 17 Aug 2010 20:36:28 +0000
Subject: SCI: Added a warning dialog on game startup for versions of Longbow
 with known buggy scripts (containing game stopping bugs), which have been
 patched by Sierra

svn-id: r52172
---
 engines/sci/sci.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/engines/sci/sci.cpp b/engines/sci/sci.cpp
index 7a9a786121..54a28a80c4 100644
--- a/engines/sci/sci.cpp
+++ b/engines/sci/sci.cpp
@@ -173,6 +173,8 @@ SciEngine::~SciEngine() {
 	g_sci = 0;
 }
 
+extern void showScummVMDialog(const Common::String &message);
+
 Common::Error SciEngine::run() {
 	g_eventRec.registerRandomSource(_rng, "sci");
 
@@ -288,6 +290,26 @@ Common::Error SciEngine::run() {
 		}
 	}
 
+	// Show any special warnings for buggy scripts with severe game bugs, 
+	// which have been patched by Sierra
+	if (getGameId() == GID_LONGBOW) {
+		// Longbow 1.0 has a buggy script which prevents the game
+		// from progressing during the Green Man riddle sequence.
+		// A patch for this buggy script has been released by Sierra,
+		// and is necessary to complete the game without issues.
+		// The patched script is included in Longbow 1.1.
+		// Refer to bug #3036609.
+		Resource *buggyScript = _resMan->findResource(ResourceId(kResourceTypeScript, 180), 0);
+
+		if (buggyScript->size == 12354 || buggyScript->size == 12362) {
+			showScummVMDialog("A known buggy game script has been detected, which could "
+							  "prevent you from progressing later on in the game, during "
+							  "the sequence with the Green Man's riddles. Please, apply "
+							  "the latest patch for this game by Sierra to avoid possible "
+							  "problems");
+		}
+	}
+
 	runGame();
 
 	ConfMan.flushToDisk();
-- 
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