removed parameter passing of globals and fixed expression evaluator some

yabFunctions.cpp

@@ -0,0 +1,31 @@
+/*
+**	Yab2Cpp
+**
+**	Transpiler by Samuel D. Crow
+**
+**	Based on Yab
+**
+*/
+#include "yab2cpp.h"
+
+/* function definitions */
+fn *fn::getCurrentSub()
+{
+	return callStack.back;
+}
+
+void fn::generateOnNSub(expression *e)
+{
+	this->ret=new label();
+	fn::callStack.push_back(this);
+	label::generateOnNTo(e);
+	output_cpp << "case " << ret->getID() << ":\n";
+}
+
+void fn::generateGosub(shared_ptr<label> sub)
+{
+	this->ret=new label();
+	fn::callStack.push_back(this);
+	output_cpp << "state=" << sub->getID() << ";\nbreak;\n";
+	output_cpp << "case " << ret->getID() << ":\n";
+}