1 files changed, 28 insertions, 1 deletions
diff --git a/engines/kyra/util.h b/engines/kyra/util.h
index 1c4b8462cc..78925441f3 100644
--- a/engines/kyra/util.h
+++ b/engines/kyra/util.h
@@ -78,10 +78,37 @@ private:
 	Res (T::*_func)(Arg);
 };
 
-struct ScriptState;
+template<class Arg1, class Arg2, class Res>
+struct Functor2 : public Common::BinaryFunction<Arg1, Arg2, Res> {
+	virtual ~Functor2() {}
+
+	virtual bool isValid() const = 0;
+	virtual Res operator()(Arg1, Arg2) const = 0;
+};
+
+template<class Arg1, class Arg2, class Res, class T>
+class Functor2Mem : public Functor2<Arg1, Arg2, Res> {
+public:
+	typedef Res (T::*FuncType)(Arg1, Arg2);
+
+	Functor2Mem(T *t, const FuncType &func) : _t(t), _func(func) {}
+
+	bool isValid() const { return _func != 0; }
+	Res operator()(Arg1 v1, Arg2 v2) const {
+		return (_t->*_func)(v1, v2);
+	}
+private:
+	mutable T *_t;
+	Res (T::*_func)(Arg1, Arg2);
+};
 
+struct ScriptState;
 typedef Functor1<ScriptState*, int> Opcode;
 
+struct TIM;
+typedef Functor2<const TIM*, const uint16*, int> TIMOpcode;
+
 } // end of namespace Kyra
 
 #endif
+