Fixes a lot of warnings and move math enums to enum classes

src/Nazara/Shader/GlslWriter.cpp

@@ -46,12 +46,12 @@ namespace Nz
 				currentFunction->calledFunctions.UnboundedSet(std::get<std::size_t>(node.targetFunction));
 			}
 
-			void Visit(ShaderAst::ConditionalExpression& node) override
+			void Visit(ShaderAst::ConditionalExpression& /*node*/) override
 			{
 				throw std::runtime_error("unexpected conditional expression, is shader sanitized?");
 			}
 
-			void Visit(ShaderAst::ConditionalStatement& node) override
+			void Visit(ShaderAst::ConditionalStatement& /*node*/) override
 			{
 				throw std::runtime_error("unexpected conditional statement, is shader sanitized?");
 			}

src/Nazara/Shader/LangWriter.cpp

@@ -94,7 +94,7 @@ namespace Nz
 		unsigned int indentLevel = 0;
 	};
 
-	std::string LangWriter::Generate(ShaderAst::Statement& shader, const States& states)
+	std::string LangWriter::Generate(ShaderAst::Statement& shader, const States& /*states*/)
 	{
 		State state;
 		m_currentState = &state;