TITANIC: Remove const prefix from passed messages

Turns out that some of the messages have properties that the objects
that handle them can set. For example, the CMouseDragStartMsg has a
_dragItem property that an item that allows dragging will explicitly
set, allowing the input handler to keep track of what was dragged.

4 files changed, 4 insertions, 4 deletions

diff --git a/engines/titanic/npcs/barbot.cpp b/engines/titanic/npcs/barbot.cpp
index c9a96b989b..907d3c0c71 100644
--- a/engines/titanic/npcs/barbot.cpp
+++ b/engines/titanic/npcs/barbot.cpp
@@ -233,7 +233,7 @@ void CBarbot::load(SimpleFile *file) {
 	CTrueTalkNPC::load(file);
 }
 
-bool CBarbot::handleEvent(const CEnterRoomMsg &msg) {
+bool CBarbot::handleEvent(CEnterRoomMsg &msg) {
 	warning("TODO: Barbot::CEnterRoomMsg");
 	return true;
 }
diff --git a/engines/titanic/npcs/barbot.h b/engines/titanic/npcs/barbot.h
index 160edd63d9..442578ef6c 100644
--- a/engines/titanic/npcs/barbot.h
+++ b/engines/titanic/npcs/barbot.h
@@ -174,7 +174,7 @@ private:
 	int _field33C;
 	int _field340;
 protected:
-	virtual bool handleEvent(const CEnterRoomMsg &msg);
+	virtual bool handleEvent(CEnterRoomMsg &msg);
 public:
 	CLASSDEF
 	CBarbot();
diff --git a/engines/titanic/npcs/liftbot.cpp b/engines/titanic/npcs/liftbot.cpp
index 76a48f07d1..dfc0a4f0ad 100644
--- a/engines/titanic/npcs/liftbot.cpp
+++ b/engines/titanic/npcs/liftbot.cpp
@@ -48,7 +48,7 @@ void CLiftBot::load(SimpleFile *file) {
 	CTrueTalkNPC::load(file);
 }
 
-bool CLiftBot::handleEvent(const CEnterRoomMsg &msg) {
+bool CLiftBot::handleEvent(CEnterRoomMsg &msg) {
 	warning("CLiftBot::handleEvent");
 	return true;
 }
diff --git a/engines/titanic/npcs/liftbot.h b/engines/titanic/npcs/liftbot.h
index 81c5399e7f..3a41bf3a96 100644
--- a/engines/titanic/npcs/liftbot.h
+++ b/engines/titanic/npcs/liftbot.h
@@ -35,7 +35,7 @@ private:
 private:
 	int _field108;
 protected:
-	virtual bool handleEvent(const CEnterRoomMsg &msg);
+	virtual bool handleEvent(CEnterRoomMsg &msg);
 public:
 	CLASSDEF
 	CLiftBot();