Implements variable usage, tweaks and fixes for variable assignment

src/Evaluator/EvaluationScope/EvaluationScope.cpp

@@ -4,6 +4,7 @@
 EvaluationScope::EvaluationScope(unordered_map<int, EvalValue *> *scriptVariables, int deepestScope) {
     _scriptScope = scriptVariables;
     _localScope = vector<unordered_map<int, EvalValue*>>(deepestScope);
+    _currentScope = -1;
 }
 
 EvaluationScope::~EvaluationScope() {
@@ -27,5 +28,21 @@ void EvaluationScope::SetVariable(int scope, int id, EvalValue *value) {
 }
 
 EvalValue *EvaluationScope::GetVariable(int scope, int id) {
+    if (scope == 0){
+        return _scriptScope->at(id);
+    }
     return _localScope[scope - 1][id];
 }
+
+void EvaluationScope::OuterScope() {
+    _currentScope++;
+}
+
+void EvaluationScope::InnerScope() {
+    auto scope = this->_localScope[_currentScope];
+    for (auto v: scope){
+        delete v.second;
+    }
+    _currentScope--;
+
+}