7 files changed, 139 insertions, 0 deletions

diff --git a/src/functionjoin.cpp b/src/functionjoin.cpp
new file mode 100644
index 0000000..71ee879
--- /dev/null
+++ b/src/functionjoin.cpp
@@ -0,0 +1,36 @@
+#include "functionjoin.h"
+
+#include "gamestate.h"
+
+#include <bu/sio.h>
+using namespace Bu;
+
+FunctionJoin::FunctionJoin()
+{
+}
+
+FunctionJoin::~FunctionJoin()
+{
+}
+
+void FunctionJoin::call( class GameState &gState )
+{
+        Variable vSep = gState.popDeref().to( Variable::tString );
+        Variable vLst = gState.popDeref();
+
+        if( vLst.getType() != Variable::tList )
+                throw Bu::ExceptionBase("First parameter of join must be a list.");
+
+        Bu::String sOut;
+        for( Variable::VariableArray::const_iterator i = vLst.getList().begin();
+                 i; i++ )
+        {
+                if( i != vLst.getList().begin() )
+                        sOut += vSep.getString();
+                sOut += (*i).to( Variable::tString ).getString();
+        }
+
+
+        gState.push( sOut );
+}
+
diff --git a/src/functionjoin.h b/src/functionjoin.h
new file mode 100644
index 0000000..7c46e7f
--- /dev/null
+++ b/src/functionjoin.h
@@ -0,0 +1,16 @@
+#ifndef FUNCTION_JOIN_H
+#define FUNCTION_JOIN_H
+
+#include "function.h"
+
+class FunctionJoin : public Function
+{
+public:
+        FunctionJoin();
+        virtual ~FunctionJoin();
+
+        virtual Bu::String getName() const { return "join"; }
+        virtual void call( class GameState &gState );
+};
+
+#endif
diff --git a/src/functionkeys.cpp b/src/functionkeys.cpp
new file mode 100644
index 0000000..12c1098
--- /dev/null
+++ b/src/functionkeys.cpp
@@ -0,0 +1,32 @@
+#include "functionkeys.h"
+
+#include "gamestate.h"
+
+#include <bu/sio.h>
+using namespace Bu;
+
+FunctionKeys::FunctionKeys()
+{
+}
+
+FunctionKeys::~FunctionKeys()
+{
+}
+
+void FunctionKeys::call( class GameState &gState )
+{
+        Variable vDict = gState.popDeref();
+
+        if( vDict.getType() != Variable::tDictionary )
+                throw Bu::ExceptionBase("Parameter to keys must be a dictionary.");
+
+        Variable vLst( Variable::tList );
+        for( Variable::VariableHash::const_iterator i = vDict.getHash().begin();
+                 i; i++ )
+        {
+                vLst += i.getKey();
+        }
+
+        gState.push( vLst );
+}
+
diff --git a/src/functionkeys.h b/src/functionkeys.h
new file mode 100644
index 0000000..ccc3bdd
--- /dev/null
+++ b/src/functionkeys.h
@@ -0,0 +1,16 @@
+#ifndef FUNCTION_KEYS_H
+#define FUNCTION_KEYS_H
+
+#include "function.h"
+
+class FunctionKeys : public Function
+{
+public:
+        FunctionKeys();
+        virtual ~FunctionKeys();
+
+        virtual Bu::String getName() const { return "keys"; }
+        virtual void call( class GameState &gState );
+};
+
+#endif
diff --git a/src/functionstring.cpp b/src/functionstring.cpp
new file mode 100644
index 0000000..ca5a3aa
--- /dev/null
+++ b/src/functionstring.cpp
@@ -0,0 +1,17 @@
+#include "functionstring.h"
+
+#include "gamestate.h"
+
+FunctionString::FunctionString()
+{
+}
+
+FunctionString::~FunctionString()
+{
+}
+
+void FunctionString::call( class GameState &gState )
+{
+        gState.push( gState.popDeref().to( Variable::tString ) );
+}
+
diff --git a/src/functionstring.h b/src/functionstring.h
new file mode 100644
index 0000000..36e4f51
--- /dev/null
+++ b/src/functionstring.h
@@ -0,0 +1,16 @@
+#ifndef FUNCTION_STRING_H
+#define FUNCTION_STRING_H
+
+#include "function.h"
+
+class FunctionString : public Function
+{
+public:
+        FunctionString();
+        virtual ~FunctionString();
+
+        virtual Bu::String getName() const { return "string"; }
+        virtual void call( class GameState &gState );
+};
+
+#endif
diff --git a/src/game.cpp b/src/game.cpp
index 4971c4b..37989bd 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -8,6 +8,9 @@
 #include "functioninteger.h"
 #include "functionfloat.h"
 #include "functiondebugstring.h"
+#include "functionstring.h"
+#include "functionjoin.h"
+#include "functionkeys.h"
 
 Game::Game()
 {
@@ -20,6 +23,9 @@ Game::Game()
         addFunction( new FunctionInteger() );
         addFunction( new FunctionFloat() );
         addFunction( new FunctionDebugString() );
+        addFunction( new FunctionString() );
+        addFunction( new FunctionJoin() );
+        addFunction( new FunctionKeys() );
 }
 
 Game::~Game()