return, exit, lists added. You can't index them.

They're linked lists right now, maybe that's not really what I want
long-term, but it'll work for now...

1 files changed, 25 insertions, 3 deletions

diff --git a/src/gamestate.cpp b/src/gamestate.cpp
index fa014ac..d45d53c 100644
--- a/src/gamestate.cpp
+++ b/src/gamestate.cpp
@@ -9,7 +9,8 @@
 using namespace Bu;
 
 GameState::GameState( Game *pGame ) :
-        pGame( pGame )
+        pGame( pGame ),
+        bRunning( true )
 {
 }
 
@@ -73,7 +74,8 @@ void GameState::execCommand( const Bu::String &sCmd )
         {
                 if( !pGame->execCommand( *this, lCmd ) )
                 {
-                        throw Bu::ExceptionBase("No such command exists.");
+                        sio << "I don't understand that command." << sio.nl;
+                        return;
                 }
         }
 }
@@ -215,6 +217,12 @@ Bu::StringList GameState::tokenize( const Bu::String &sSrc )
         return lRet;
 }
 
+void GameState::exit()
+{
+        bRunning = false;
+        bEscape = true;
+}
+
 Variable GameState::popDeref()
 {
         Variable v = lStack.peekPop();
@@ -420,6 +428,17 @@ void GameState::parse( const AstBranch::NodeList &lCode )
                         }
                         break;
 
+                case AstNode::tReturn:
+                        return;
+                        break;
+
+                case AstNode::tAppend:
+                        {
+                                Variable v = popDeref();
+                                lStack.peek() += v;
+                        }
+                        break;
+
                 // tLeafLiteral
                 case AstNode::tVarName:
                 case AstNode::tLiteral:
@@ -435,6 +454,9 @@ void GameState::parse( const AstBranch::NodeList &lCode )
 
                 // tBranch
                 case AstNode::tScope:
+                        throw Bu::ExceptionBase("Scope?  that shouldn't be here...");
+                        break;
+
                 case AstNode::tIf:
                         {
                                 AstBranch::NodeList lIf =
@@ -488,7 +510,7 @@ void GameState::parse( const AstBranch::NodeList &lCode )
                         break;
                 }
 
-                if( bEscape )
+                if( bEscape || !bRunning )
                 {
                         return;
                 }