MOHAWK: MYST: Make global currentAge an enum

This global basically tracks what age/book/stack
the player is in.

It is also used to change stacks via
MohawkEngine_Myst::changeToStack() by
being an index for MystScriptParser::_stackMap
and MystScriptParser::_startCard.

E.x., instead of _global.currentAge = 2
now _global.currentAge = kMystLibrary.

Also two of the endings are considered Ages
instead of being apart of _global.ending.

3 files changed, 5 insertions, 5 deletions

diff --git a/engines/mohawk/myst_stacks/intro.cpp b/engines/mohawk/myst_stacks/intro.cpp
index 44be90b5f4..9e03713b0f 100644
--- a/engines/mohawk/myst_stacks/intro.cpp
+++ b/engines/mohawk/myst_stacks/intro.cpp
@@ -71,7 +71,7 @@ void Intro::runPersistentScripts() {
 uint16 Intro::getVar(uint16 var) {
 	switch(var) {
 	case 0:
-		if (_globals.currentAge == 9 || _globals.currentAge == 10)
+		if (_globals.currentAge == kSirrusEnding || _globals.currentAge == kAchenarEnding)
 			return 2;
 		else
 			return _globals.currentAge;
diff --git a/engines/mohawk/myst_stacks/myst.cpp b/engines/mohawk/myst_stacks/myst.cpp
index ebcdd17cc0..4a45235143 100644
--- a/engines/mohawk/myst_stacks/myst.cpp
+++ b/engines/mohawk/myst_stacks/myst.cpp
@@ -1208,9 +1208,9 @@ void Myst::o_bookGivePage(uint16 var, const ArgumentsArray &args) {
 	if (mask == 32) {
 		// You lose!
 		if (var == 100)
-			_globals.currentAge = 9;
+			_globals.currentAge = kSirrusEnding;
 		else
-			_globals.currentAge = 10;
+			_globals.currentAge = kAchenarEnding;
 
 		_vm->changeToCard(cardIdLose, kTransitionDissolve);
 	} else {
diff --git a/engines/mohawk/myst_stacks/preview.cpp b/engines/mohawk/myst_stacks/preview.cpp
index 49fef62ad6..348a195dea 100644
--- a/engines/mohawk/myst_stacks/preview.cpp
+++ b/engines/mohawk/myst_stacks/preview.cpp
@@ -93,7 +93,7 @@ void Preview::o_stayHere(uint16 var, const ArgumentsArray &args) {
 void Preview::o_speechStop(uint16 var, const ArgumentsArray &args) {
 	_vm->_sound->stopSpeech();
 	_speechRunning = false;
-	_globals.currentAge = 2;
+	_globals.currentAge = kMystLibrary;
 }
 
 void Preview::speechUpdateCue() {
@@ -205,7 +205,7 @@ void Preview::speech_run() {
 		_vm->changeToCard(4329, kTransitionDissolve);
 
 		_speechRunning = false;
-		_globals.currentAge = 2;
+		_globals.currentAge = kMystLibrary;
 
 		_vm->_cursor->showCursor();
 		break;