Add 'loop' feature

src/rendering/State.cpp

@@ -182,6 +182,7 @@ void State::defineOptions(){
 	_sharedInfos[s_scroll_speed_key] 		= {Category::PLAYBACK, s_scroll_speed_dsc, Type::FLOAT};
 	_sharedInfos[s_scroll_reverse_key] 		= {Category::PLAYBACK, s_scroll_reverse_dsc, Type::BOOLEAN};
 	_sharedInfos[s_scroll_horizontal_key] 	= {Category::PLAYBACK, s_scroll_horizontal_dsc, Type::BOOLEAN};
+	_sharedInfos[s_loop_key] 				= {Category::PLAYBACK, s_loop_dsc, Type::BOOLEAN};
 
 	// Effects
 	_sharedInfos[s_layers_key] 			= {Category::EFFECTS, s_layers_dsc, Type::OTHER};
@@ -474,6 +475,7 @@ void State::updateOptions(){
 	_boolInfos[s_smooth_key] = &applyAA;
 	_boolInfos[s_scroll_reverse_key] = &reverseScroll;
 	_boolInfos[s_scroll_horizontal_key] = &horizontalScroll;
+	_boolInfos[s_loop_key] = &loop;
 
 	_pathInfos[s_bg_img_path_key] = &background.imagePath;
 	_pathInfos[s_particles_paths_key] = &particles.imagePaths;
@@ -920,6 +922,7 @@ void State::reset(){
 	applyAA = false;
 	reverseScroll = false;
 	horizontalScroll = false;
+	loop = false;
 
 	_filePath = "";
 }

src/rendering/State.h

@@ -216,6 +216,7 @@ class State {
 	bool applyAA;
 	bool reverseScroll;
 	bool horizontalScroll;
+	bool loop;
 
 	std::array<int, 16> layersMap; ///< Location of each layer.
 

src/rendering/Viewer.cpp

@@ -213,6 +213,10 @@ SystemAction Viewer::draw(float currentTime) {
 	// playback is disabled.
 	_timer = _shouldPlay ? (currentTime - _timerStart) : _timer;
 
+	if (_shouldPlay && _state.loop && _timer >= _scene->duration()) {
+		reset();
+	}
+
 	// Render scene and blit, with GUI on top if needed.
 	drawScene(_useTransparency);
 
@@ -555,6 +559,18 @@ SystemAction Viewer::drawGUI(const float currentTime) {
 				ImGui::helpTooltip(s_scroll_reverse_dsc);
 			}
 
+			if(_liveplay){
+				ImGui::BeginDisabled();
+			}
+			ImGui::Checkbox("Loop", &_state.loop);
+			if(_liveplay){
+				ImGui::EndDisabled();
+				if(ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenDisabled)){
+					ImGui::SetTooltip("Not available in liveplay");
+				}
+			} else {
+				ImGui::helpTooltip(s_loop_dsc);
+			}
 		}
 
 		if(ImGui::CollapsingHeader("Notes##HEADER")){

src/resources/strings.h

@@ -54,6 +54,9 @@ constexpr const char* s_scroll_reverse_dsc 					= "Notes scroll from bottom to t
 constexpr const char* s_scroll_horizontal_key 				= "scroll-horizontal";
 constexpr const char* s_scroll_horizontal_dsc 				= "Notes scroll from right to left when enabled";
 
+constexpr const char* s_loop_key 							= "loop";
+constexpr const char* s_loop_dsc 							= "Loop playback from start to end";
+
 constexpr const char* s_layers_key 							= "layers";
 constexpr const char* s_layers_dsc 							= "Active layers indices, from background to foreground";