Optimize parameter passing to avoid unnecessary copying

src/assets/Assets.cpp

@@ -11,59 +11,59 @@
 Assets::~Assets() {
 }
 
-Texture* Assets::getTexture(std::string name) const {
+Texture* Assets::getTexture(const std::string& name) const {
     auto found = textures.find(name);
     if (found == textures.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<Texture> texture, std::string name){
+void Assets::store(std::unique_ptr<Texture> texture, const std::string& name){
     textures.emplace(name, std::move(texture));
 }
 
 
-Shader* Assets::getShader(std::string name) const{
+Shader* Assets::getShader(const std::string& name) const{
     auto found = shaders.find(name);
     if (found == shaders.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<Shader> shader, std::string name){
+void Assets::store(std::unique_ptr<Shader> shader, const std::string& name){
     shaders.emplace(name, std::move(shader));
 }
 
-Font* Assets::getFont(std::string name) const {
+Font* Assets::getFont(const std::string& name) const {
     auto found = fonts.find(name);
     if (found == fonts.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<Font> font, std::string name){
+void Assets::store(std::unique_ptr<Font> font, const std::string& name){
     fonts.emplace(name, std::move(font));
 }
 
-Atlas* Assets::getAtlas(std::string name) const {
+Atlas* Assets::getAtlas(const std::string& name) const {
     auto found = atlases.find(name);
     if (found == atlases.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<Atlas> atlas, std::string name){
+void Assets::store(std::unique_ptr<Atlas> atlas, const std::string& name){
     atlases.emplace(name, std::move(atlas));
 }
 
-audio::Sound* Assets::getSound(std::string name) const {
+audio::Sound* Assets::getSound(const std::string& name) const {
     auto found = sounds.find(name);
     if (found == sounds.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<audio::Sound> sound, std::string name) {
+void Assets::store(std::unique_ptr<audio::Sound> sound, const std::string& name) {
     sounds.emplace(name, std::move(sound));
 }
 
@@ -75,13 +75,13 @@ void Assets::store(const TextureAnimation& animation) {
     animations.emplace_back(animation);
 }
 
-UiDocument* Assets::getLayout(std::string name) const {
+UiDocument* Assets::getLayout(const std::string& name) const {
     auto found = layouts.find(name);
     if (found == layouts.end())
         return nullptr;
     return found->second.get();
 }
 
-void Assets::store(std::unique_ptr<UiDocument> layout, std::string name) {
+void Assets::store(std::unique_ptr<UiDocument> layout, const std::string& name) {
     layouts[name] = std::shared_ptr<UiDocument>(std::move(layout));
 }