From fcddd5c69a2b7f6496d76af09786c10db042fe7a Mon Sep 17 00:00:00 2001
From: Sven Hesse
Date: Tue, 23 Jun 2009 01:23:14 +0000
Subject: Replacing the 2 offset functions by a generic
 Script::getFunctionOffset()

svn-id: r41797
---
 engines/gob/draw.cpp    |  5 +++--
 engines/gob/game_v1.cpp |  2 +-
 engines/gob/game_v2.cpp |  4 ++--
 engines/gob/script.cpp  | 16 +++++++---------
 engines/gob/script.h    | 11 +++++++----
 5 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/engines/gob/draw.cpp b/engines/gob/draw.cpp
index 66f046339f..f0a84bbdcc 100644
--- a/engines/gob/draw.cpp
+++ b/engines/gob/draw.cpp
@@ -390,8 +390,9 @@ void Draw::printTextCentered(int16 id, int16 left, int16 top, int16 right,
 	adjustCoords(1, &left, &top);
 	adjustCoords(1, &right, &bottom);
 
-	if (_vm->_game->_script->getCenterOffset() != 0) {
-		_vm->_game->_script->call(_vm->_game->_script->getCenterOffset());
+	uint16 centerOffset = _vm->_game->_script->getFunctionOffset(Script::kFunctionCenter);
+	if (centerOffset != 0) {
+		_vm->_game->_script->call(centerOffset);
 
 		WRITE_VAR(17, (uint32) id);
 		WRITE_VAR(18, (uint32) left);
diff --git a/engines/gob/game_v1.cpp b/engines/gob/game_v1.cpp
index 92679cb568..31847075bc 100644
--- a/engines/gob/game_v1.cpp
+++ b/engines/gob/game_v1.cpp
@@ -164,7 +164,7 @@ void Game_v1::playTot(int16 skipPlay) {
 			if (!_vm->_inter->_variables)
 				_vm->_inter->allocateVars(_script->getVariablesCount() & 0xFFFF);
 
-			_script->seek(_script->getStartOffset());
+			_script->seek(_script->getFunctionOffset(Script::kFunctionStart));
 
 			_vm->_inter->renewTimeInVars();
 
diff --git a/engines/gob/game_v2.cpp b/engines/gob/game_v2.cpp
index e4b4b73661..54a70949bf 100644
--- a/engines/gob/game_v2.cpp
+++ b/engines/gob/game_v2.cpp
@@ -199,7 +199,7 @@ void Game_v2::playTot(int16 skipPlay) {
 			if (!_vm->_inter->_variables)
 				_vm->_inter->allocateVars(_script->getVariablesCount() & 0xFFFF);
 
-			_script->seek(_script->getStartOffset());
+			_script->seek(_script->getFunctionOffset(Script::kFunctionStart));
 
 			_vm->_inter->renewTimeInVars();
 
@@ -269,7 +269,7 @@ void Game_v2::playTot(int16 skipPlay) {
 	} else {
 		_vm->_inter->initControlVars(0);
 		_vm->_scenery->_pCaptureCounter = oldCaptureCounter;
-		_script->seek(READ_LE_UINT16(_script->getData() + (skipPlay << 1) + 0x66));
+		_script->seek(_script->getFunctionOffset(skipPlay + 1));
 
 		_menuLevel++;
 		_vm->_inter->callSub(2);
diff --git a/engines/gob/script.cpp b/engines/gob/script.cpp
index 4bed65704e..72085ed756 100644
--- a/engines/gob/script.cpp
+++ b/engines/gob/script.cpp
@@ -422,10 +422,6 @@ bool Script::getTOTProperties() {
 	_exFileNumber   = _totData[60];
 	_communHandling = _totData[61];
 
-	_startOffset = READ_LE_UINT32(_totData + 100);
-
-	_centerOffset = READ_LE_UINT16(_totData + 126);
-
 	return true;
 }
 
@@ -538,12 +534,14 @@ uint8 Script::getCommunHandling() const {
 	return _communHandling;
 }
 
-uint32 Script::getStartOffset() const {
-	return _startOffset;
-}
+uint16 Script::getFunctionOffset(uint8 function) const {
+	if (!_totData)
+		return 0;
+
+	// Offsets 100-128, 2 bytes per function
+	assert(function <= 13);
 
-uint32 Script::getCenterOffset() const {
-	return _centerOffset;
+	return READ_LE_UINT16(_totData + 100 + function * 2);
 }
 
 uint32 Script::getVariablesCount(const char *fileName, GobEngine *vm) {
diff --git a/engines/gob/script.h b/engines/gob/script.h
index a1200a7ce4..f2f0571a3a 100644
--- a/engines/gob/script.h
+++ b/engines/gob/script.h
@@ -36,6 +36,11 @@ class Expression;
 
 class Script {
 public:
+	enum Function {
+		kFunctionStart  =  0,
+		kFunctionCenter = 13
+	};
+
 	Script(GobEngine *vm);
 	~Script();
 
@@ -126,8 +131,8 @@ public:
 	uint8  getImFileNumber   () const;
 	uint8  getExFileNumber   () const;
 	uint8  getCommunHandling () const;
-	uint32 getStartOffset    () const;
-	uint32 getCenterOffset   () const;
+
+	uint16 getFunctionOffset (uint8 function) const;
 
 	static uint32 getVariablesCount(const char *fileName, GobEngine *vm);
 
@@ -158,8 +163,6 @@ private:
 	uint8  _imFileNumber;
 	uint8  _exFileNumber;
 	uint8  _communHandling;
-	uint32 _startOffset;
-	uint16 _centerOffset;
 
 	Common::Stack<CallEntry> _callStack;
 
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