diff --git a/src/game/scripting/entity.cpp b/src/game/scripting/entity.cpp
index 2cdc52f..484fce8 100644
--- a/src/game/scripting/entity.cpp
+++ b/src/game/scripting/entity.cpp
@@ -13,13 +13,7 @@ namespace game::scripting
 
 	entity::entity(entity&& other) noexcept
 	{
-		if (&other == this) return;
-
-		this->context_ = other.context_;
-		this->entity_id_ = other.entity_id_;
-
-		other.context_ = nullptr;
-		other.entity_id_ = 0;
+		this->operator=(std::move(other));
 	}
 
 	entity::entity(context* context, const unsigned int entity_id) : context_(context), entity_id_(entity_id)
@@ -36,7 +30,7 @@ namespace game::scripting
 	{
 		if (&other != this)
 		{
-			this->release();
+			this->~entity();
 
 			this->context_ = other.context_;
 			this->entity_id_ = other.entity_id_;
@@ -51,7 +45,7 @@ namespace game::scripting
 	{
 		if (&other != this)
 		{
-			this->release();
+			this->~entity();
 
 			this->context_ = other.context_;
 			this->entity_id_ = other.entity_id_;
@@ -114,7 +108,7 @@ namespace game::scripting
 	{
 		if (this->entity_id_)
 		{
-			native::VariableValue value;
+			native::VariableValue value{};
 			value.type = native::SCRIPT_OBJECT;
 			value.u.entityId = this->entity_id_;
 			native::AddRefToValue(&value);
diff --git a/src/game/scripting/variable_value.cpp b/src/game/scripting/variable_value.cpp
index 8b798c7..b1d7f91 100644
--- a/src/game/scripting/variable_value.cpp
+++ b/src/game/scripting/variable_value.cpp
@@ -1,20 +1,68 @@
-#include "std_include.hpp"
+#include <std_include.hpp>
 #include "variable_value.hpp"
 
 namespace game::scripting
 {
-	variable_value::variable_value(native::VariableValue value) : value_(value)
+	variable_value::variable_value(const native::VariableValue& value)
 	{
-		native::AddRefToValue(&value);
+		this->assign(value);
+	}
+
+	variable_value::variable_value(const variable_value& other) noexcept
+	{
+		this->operator=(other);
+	}
+
+	variable_value::variable_value(variable_value&& other) noexcept
+	{
+		this->operator=(std::move(other));
+	}
+
+	variable_value& variable_value::operator=(const variable_value& other) noexcept
+	{
+		if (this != &other)
+		{
+			this->release();
+			this->assign(other.value_);
+		}
+
+		return *this;
+	}
+
+	variable_value& variable_value::operator=(variable_value&& other) noexcept
+	{
+		if (this != &other)
+		{
+			this->release();
+			this->value_ = other.value_;
+			other.value_.type = native::SCRIPT_NONE;
+		}
+
+		return *this;
 	}
 
 	variable_value::~variable_value()
 	{
-		native::RemoveRefToValue(this->value_.type, this->value_.u);
+		this->release();
 	}
 
-	variable_value::operator native::VariableValue() const
+	const native::VariableValue& variable_value::get() const
 	{
 		return this->value_;
 	}
+
+	void variable_value::assign(const native::VariableValue& value)
+	{
+		this->value_ = value;
+		native::AddRefToValue(&this->value_);
+	}
+
+	void variable_value::release()
+	{
+		if (this->value_.type != native::SCRIPT_NONE)
+		{
+			native::RemoveRefToValue(this->value_.type, this->value_.u);
+			this->value_.type = native::SCRIPT_NONE;
+		}
+	}
 }
diff --git a/src/game/scripting/variable_value.hpp b/src/game/scripting/variable_value.hpp
index fb2a8c6..34361a4 100644
--- a/src/game/scripting/variable_value.hpp
+++ b/src/game/scripting/variable_value.hpp
@@ -3,15 +3,25 @@
 
 namespace game::scripting
 {
-	class variable_value final
+	class variable_value
 	{
 	public:
-		explicit variable_value(native::VariableValue value);
+		variable_value() = default;
+		variable_value(const native::VariableValue& value);
+		variable_value(const variable_value& other) noexcept;
+		variable_value(variable_value&& other) noexcept;
+
+		variable_value& operator=(const variable_value& other) noexcept;
+		variable_value& operator=(variable_value&& other) noexcept;
+
 		~variable_value();
 
-		explicit operator native::VariableValue() const;
+		const native::VariableValue& get() const;
 
 	private:
-		native::VariableValue value_;
+		void assign(const native::VariableValue& value);
+		void release();
+
+		native::VariableValue value_{{0}, native::SCRIPT_NONE};
 	};
 }
diff --git a/src/utils/compression.cpp b/src/utils/compression.cpp
index 57dfed5..26991e3 100644
--- a/src/utils/compression.cpp
+++ b/src/utils/compression.cpp
@@ -7,11 +7,7 @@ namespace utils::compression
 	std::string zlib::compress(const std::string& data)
 	{
 		memory::allocator allocator;
-		unsigned long length = (data.size() * 2);
-		if (!length) length = 2;
-
-		if (length < 100) length *= 10;
-
+		unsigned long length = compressBound(data.size());
 		const auto buffer = allocator.allocate_array<char>(length);
 		if (compress2(reinterpret_cast<Bytef*>(buffer), &length,
 		              reinterpret_cast<Bytef*>(const_cast<char*>(data.data())), data.size(),