2 files changed, 9 insertions, 9 deletions

diff --git a/src/openvic-simulation/misc/Event.cpp b/src/openvic-simulation/misc/Event.cpp
index eb5f7da..d6750c1 100644
--- a/src/openvic-simulation/misc/Event.cpp
+++ b/src/openvic-simulation/misc/Event.cpp
@@ -196,7 +196,9 @@ bool EventManager::load_event_file(IssueManager const& issue_manager, ast::NodeC
 bool EventManager::load_on_action_file(ast::NodeCPtr root) {
 	bool ret = expect_dictionary([this](std::string_view identifier, ast::NodeCPtr node) -> bool {
 		OnAction::weight_map_t weighted_events;
-		bool ret = expect_dictionary([this, &identifier, &weighted_events](std::string_view weight_str, ast::NodeCPtr event_node) -> bool {
+		bool ret = expect_dictionary_reserve_length(
+			weighted_events,
+			[this, &identifier, &weighted_events](std::string_view weight_str, ast::NodeCPtr event_node) -> bool {
 				bool ret = false;
 				uint64_t weight = StringUtils::string_to_uint64(weight_str, &ret);
 				if (!ret) {
@@ -208,7 +210,7 @@ bool EventManager::load_on_action_file(ast::NodeCPtr root) {
 				ret &= expect_event_identifier(assign_variable_callback_pointer(event))(event_node);
 
 				if (event != nullptr) {
-					ret &= weighted_events.emplace(event, weight).second;
+					ret &= map_callback(weighted_events, event)(weight);
 				} else {
 					Logger::warning(
 						"Non-existing event ", event->get_identifier(), " loaded on action ", identifier, "with weight",
diff --git a/src/openvic-simulation/misc/Modifier.cpp b/src/openvic-simulation/misc/Modifier.cpp
index c83fcf0..2d95f0d 100644
--- a/src/openvic-simulation/misc/Modifier.cpp
+++ b/src/openvic-simulation/misc/Modifier.cpp
@@ -372,12 +372,7 @@ key_value_callback_t ModifierManager::_modifier_effect_callback(
 ) const {
 	const auto add_modifier_cb = [this, &modifier, effect_validator](ModifierEffect const* effect, ast::NodeCPtr value) -> bool {
 		if (effect_validator(*effect)) {
-			if (!modifier.values.contains(effect)) {
-				return expect_fixed_point(assign_variable_callback(modifier.values[effect]))(value);
-			} else {
-				Logger::error("Duplicate modifier effect: ", effect->get_identifier());
-				return false;
-			}
+			return expect_fixed_point(map_callback(modifier.values, effect))(value);
 		} else {
 			Logger::error("Failed to validate modifier effect: ", effect->get_identifier());
 			return false;
@@ -424,7 +419,10 @@ node_callback_t ModifierManager::expect_validated_modifier_value_and_default(
 ) const {
 	return [this, modifier_callback, default_callback, effect_validator](ast::NodeCPtr root) -> bool {
 		ModifierValue modifier;
-		bool ret = expect_dictionary(_modifier_effect_callback(modifier, default_callback, effect_validator))(root);
+		bool ret = expect_dictionary_reserve_length(
+			modifier.values,
+			_modifier_effect_callback(modifier, default_callback, effect_validator)
+		)(root);
 		ret &= modifier_callback(std::move(modifier));
 		return ret;
 	};