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.

1 files changed, 16 insertions, 1 deletions

diff --git a/engines/mohawk/myst_state.h b/engines/mohawk/myst_state.h
index fa01d03396..737db306ab 100644
--- a/engines/mohawk/myst_state.h
+++ b/engines/mohawk/myst_state.h
@@ -71,6 +71,21 @@ enum HeldPage {
 	kWhitePage           = 13
 };
 
+// Age the player is in
+enum ActiveAge {
+	kSelenitic     = 0,
+	kStoneship     = 1,
+	kMystLibrary   = 2,
+	kMechanical    = 3,
+	kChannelwood   = 4,
+	kIntro         = 5,
+	kDini          = 6,
+	kMystStart     = 7,
+	kCredits       = 8,
+	kSirrusEnding  = 9,
+	kAchenarEnding = 10
+};
+
 class MystGameState {
 public:
 	MystGameState(MohawkEngine_Myst*, Common::SaveFileManager*);
@@ -98,7 +113,7 @@ public:
 	*/
 	struct Globals {
 		uint16 u0;
-		uint16 currentAge;
+		ActiveAge currentAge;
 		HeldPage heldPage;
 		uint16 u1;
 		uint16 transitions;