Added background music to scene

assets/scenes/scene_1.symtres

@@ -1,6 +1,7 @@
 Scene_Config
 {
 	debug_draw_color : 0.800 0.400 0.100 1.000
+	background_music_filename : sounds/scene_background_music_default.ogg
 	fog_type : 1
 	fog_density : 0.1000
 	fog_color : 0.310 0.412 0.529
@@ -9,6 +10,7 @@ Scene_Config
 	fog_max_distance : 450.0000
 	cleanup_func : scene_1_cleanup
 	init_func : scene_1_init
+	background_music_volume : 0.0100
 	debug_draw_enabled : false
 	debug_draw_mode : 0
 	next_scene : test

src/common/version.h

@@ -4,7 +4,7 @@
 /* Auto generated version file. DO NOT MODIFY */
 #define SYMMETRY_VERSION_MAJOR 0
 #define SYMMETRY_VERSION_MINOR 2
-#define SYMMETRY_VERSION_REVISION 358
+#define SYMMETRY_VERSION_REVISION 359
 #define SYMMETRY_VERSION_BRANCH "dev"
 
 #endif

src/game/editor.c

@@ -2196,18 +2196,9 @@ void editor_window_property_inspector(struct nk_context* context, struct Editor*
 						{
 							if(strncmp(sound_source_filename_buffer, sound_source->source_buffer->filename, MAX_FILENAME_LEN) != 0)
 							{
-								struct Sound_Source_Buffer* new_source_buffer = sound_source_buffer_create(sound, sound_source_filename_buffer, ST_WAV_STREAM);
+								if(sound_source_buffer_set(sound, sound_source, sound_source_filename_buffer, ST_WAV) && playing)
-								if(new_source_buffer)
-								{
-									sound_source_buffer_stop_all(sound, sound_source->source_buffer);
-									sound_source_instance_destroy(sound, sound_source->source_instance);
-									sound_source->source_instance = sound_source_instance_create(sound, new_source_buffer, true);
-									sound_source->source_buffer = new_source_buffer;
-									sound_source->base.transform.is_modified = true; // Fake a transformation so that post-update the new sound source position is updated
-									if(playing)
 									sound_source_instance_play(sound, sound_source->source_instance);
 							}
-							}
 							sound_source_filename_copied = false;
 							nk_contextual_close(context);
 						}
@@ -2628,12 +2619,10 @@ void editor_window_settings_scene(struct nk_context* context, struct Editor* edi
 			next_scene_filename_copied = true;
 		}
 
-		nk_tooltip(context, "Enter the name of the scene file without extension");
 		int edit_flags = NK_EDIT_GOTO_END_ON_ACTIVATE | NK_EDIT_FIELD | NK_EDIT_SIG_ENTER;
 		int next_scene_edit_state = nk_edit_string_zero_terminated(context, edit_flags, next_scene_filename_buffer, MAX_FILENAME_LEN, NULL);
 		if(next_scene_edit_state & NK_EDIT_COMMITED)
 		{
-			scene_save(scene, scene->filename, DIRT_INSTALL);
 			strncpy(scene->next_level_filename, next_scene_filename_buffer, MAX_FILENAME_LEN);
 			nk_edit_unfocus(context);
 		}
@@ -2656,15 +2645,10 @@ void editor_window_settings_scene(struct nk_context* context, struct Editor* edi
 		if(scene_init_edit_state & NK_EDIT_COMMITED)
 		{
 			if(scene_init_func_assign(scene, init_func_name_buffer))
-			{
 				nk_edit_unfocus(context);
-				scene_save(scene, scene->filename, DIRT_INSTALL);
-			}
 			else
-			{
 				init_func_name_copied = false;
 		}
-		}
 		else if(scene_init_edit_state & NK_EDIT_DEACTIVATED && init_func_name_copied)
 		{
 			init_func_name_copied = false;
@@ -2684,20 +2668,44 @@ void editor_window_settings_scene(struct nk_context* context, struct Editor* edi
 		if(cleanup_func_edit_state & NK_EDIT_COMMITED)
 		{
 			if(scene_cleanup_func_assign(scene, cleanup_func_name_buffer))
-			{
-				scene_save(scene, scene->filename, DIRT_INSTALL);
 				nk_edit_unfocus(context);
-			}
 			else
-			{
 				cleanup_func_name_copied = false;
 		}
-		}
 		else if(cleanup_func_edit_state & NK_EDIT_DEACTIVATED && cleanup_func_name_copied)
 		{
 			cleanup_func_name_copied = false;
 		}
 
+		/* Background Music */
+		nk_layout_row_dynamic(context, row_height, 2);
+		nk_label(context, "Background Music Filename", LABEL_FLAGS_ALIGN_LEFT);
+		static char background_music_filename_buffer[MAX_FILENAME_LEN];
+		static bool background_music_filename_copied = false;
+		if(!background_music_filename_copied)
+		{
+			strncpy(background_music_filename_buffer, scene->background_music_buffer->filename, MAX_FILENAME_LEN);
+			background_music_filename_copied = true;
+		}
+
+		int background_music_filename_edit_state = nk_edit_string_zero_terminated(context, edit_flags, background_music_filename_buffer, MAX_FILENAME_LEN, NULL);
+		if(background_music_filename_edit_state & NK_EDIT_COMMITED)
+		{
+			if(scene_background_music_set(scene, background_music_filename_buffer))
+				nk_edit_unfocus;
+			else
+				background_music_filename_copied = false;
+		}
+		else
+		{
+			background_music_filename_copied = false;
+		}
+
+		nk_layout_row_dynamic(context, row_height, 1);
+		float new_volume = scene->background_music_volume;
+		if((new_volume = nk_propertyf(context, "Music Volume", 0.f, scene->background_music_volume, 1.f, 0.1f, 0.1f)) != scene->background_music_volume)
+			scene_background_music_volume_set(scene, new_volume);
+
 		/* Render Settings */
 		struct Render_Settings* render_settings = &game_state->renderer->settings;
 		if(nk_tree_push(context, NK_TREE_TAB, "Fog", NK_MAXIMIZED))

src/game/scene.c

@@ -104,6 +104,9 @@ void scene_init(struct Scene* scene)
 	editor_camera_init(game_state->editor, game_state->cvars);
 	editor_init_entities(game_state->editor);
 
+	scene->background_music_volume = 0.1f;
+	scene_background_music_set(scene, "sounds/scene_background_music_default.ogg");
+
 	if(game_state->game_mode == GAME_MODE_PAUSE)
 		game_state->game_mode = GAME_MODE_GAME;
 	scene->active_camera_index = game_state_get()->game_mode == GAME_MODE_GAME ? CAM_GAME : CAM_EDITOR;
@@ -113,6 +116,41 @@ void scene_init(struct Scene* scene)
 	scene_cleanup_func_assign(scene, "scene_func_stub");
 }
 
+bool scene_background_music_set(struct Scene* scene, const char* filename)
+{
+	struct Sound* sound = game_state_get()->sound;
+	scene->background_music_buffer = sound_source_buffer_create(sound, filename, ST_WAV_STREAM);
+	if(scene->background_music_buffer)
+	{
+		scene->background_music_instance = sound_source_instance_create(sound, scene->background_music_buffer, false);
+		if(scene->background_music_instance != 0)
+		{
+			sound_source_instance_volume_set(sound, scene->background_music_instance, scene->background_music_volume);
+			sound_source_instance_loop_set(sound, scene->background_music_instance, true);
+			sound_source_instance_play(sound, scene->background_music_instance);
+			return true;
+		}
+		else
+		{
+			log_error("scene:background_music_set", "Failed to create instance for scene background music file '%s'", filename);
+			return false;
+		}
+	}
+	else
+	{
+		log_error("scene:background_music_set", "Failed to create buffer from scene background music file '%s'", filename);
+		return false;
+	}
+}
+
+void scene_background_music_volume_set(struct Scene* scene, float new_volume)
+{
+	struct Sound* sound = game_state_get()->sound;
+	scene->background_music_volume = fmaxf(0.f, new_volume);
+	if(sound_source_instance_is_valid(sound, scene->background_music_instance))
+		sound_source_instance_volume_set(sound, scene->background_music_instance, scene->background_music_volume);
+}
+
 bool scene_init_func_assign(struct Scene* scene, const char* init_func_name)
 {
 	struct Game_State* game_state = game_state_get();
@@ -216,6 +254,22 @@ bool scene_load(struct Scene* scene, const char* filename, int directory_type)
 			if(hashmap_value_exists(scene_data, "next_scene"))
 				strncpy(scene->next_level_filename, hashmap_value_exists(scene_data, "next_scene") ? hashmap_str_get(scene_data, "next_scene") : "NONE", MAX_FILENAME_LEN);
 
+			if(hashmap_value_exists(scene_data, "background_music_filename"))
+			{
+				const char* background_music_filename = hashmap_str_get(scene_data, "background_music_filename");
+				if(!scene_background_music_set(scene, background_music_filename))
+				{
+					log_error("scene:load", "Faield to set scene background music to '%s'. Reverting to default", background_music_filename);
+					scene_background_music_set(scene, "sounds/scene_background_default_music.ogg");
+				}
+			}
+
+			if(hashmap_value_exists(scene_data, "background_music_volume"))
+			{
+				float new_volume = hashmap_float_get(scene_data, "background_music_volume"); 
+				scene_background_music_volume_set(scene, new_volume);
+			}
+
 			num_objects_loaded++;
 		}
 		break;
@@ -329,6 +383,8 @@ bool scene_save(struct Scene* scene, const char* filename, int directory_type)
 	if(scene->init)    hashmap_str_set(scene_data, "init_func", scene->init_func_name);
 	if(scene->cleanup) hashmap_str_set(scene_data, "cleanup_func", scene->cleanup_func_name);
 	hashmap_str_set(scene_data, "next_scene", scene->next_level_filename != '\0' ? scene->next_level_filename : "NONE");
+	hashmap_str_set(scene_data, "background_music_filename", scene->background_music_buffer->filename);
+	hashmap_float_set(scene_data, "background_music_volume", scene->background_music_volume);
 
 	// Player
 	struct Parser_Object* player_object = parser_object_new(parser, PO_PLAYER);
@@ -465,6 +521,12 @@ void scene_destroy(struct Scene* scene)
 	player_destroy(&scene->player);
 	entity_reset(&scene->root_entity, 0);
 	scene->root_entity.flags &= ~EF_ACTIVE;
+
+	struct Sound* sound = game_state_get()->sound;
+	sound_source_instance_destroy(sound, scene->background_music_instance);
+	sound_source_buffer_destroy(sound, scene->background_music_buffer);
+	scene->background_music_buffer = NULL;
+	scene->background_music_instance = -1;
 }
 
 void scene_update(struct Scene* scene, float dt)

src/game/scene.h

@@ -29,6 +29,9 @@ struct Scene
     int                         active_camera_index;
 	char                        init_func_name[MAX_HASH_KEY_LEN];
 	char                        cleanup_func_name[MAX_HASH_KEY_LEN];
+	struct Sound_Source_Buffer* background_music_buffer;
+	int                         background_music_instance;
+	float                       background_music_volume;
 	Scene_Func                  init;
 	Scene_Func                  cleanup;
 };
@@ -42,6 +45,8 @@ void scene_update_physics(struct Scene* scene, float fixed_dt);
 void scene_post_update(struct Scene* scene);
 bool scene_cleanup_func_assign(struct Scene* scene, const char* cleanup_func_name);
 bool scene_init_func_assign(struct Scene* scene, const char* init_func_name);
+bool scene_background_music_set(struct Scene* scene, const char* filename);
+void scene_background_music_volume_set(struct Scene* scene, float new_volume);
 
 struct Entity*       scene_entity_duplicate(struct Scene* scene, struct Entity* entity);
 struct Entity*       scene_entity_create(struct Scene* scene, const char* name, struct Entity* parent);

src/game/sound_source.c

@@ -56,10 +56,10 @@ void sound_source_update_position(struct Sound* sound, struct Sound_Source* enti
 	}
 }
 
-void sound_source_buffer_set(struct Sound* sound, struct Sound_Source* entity, const char* filename, int type)
+bool sound_source_buffer_set(struct Sound* sound, struct Sound_Source* entity, const char* filename, int type)
 {
 	if(strncmp(filename, entity->source_buffer->filename, MAX_FILENAME_LEN) == 0)
-		return;
+		return true;
 
 	struct Sound_Source_Buffer* new_buffer = sound_source_buffer_create(sound, filename, type);
 	if(new_buffer)
@@ -69,10 +69,12 @@ void sound_source_buffer_set(struct Sound* sound, struct Sound_Source* entity, c
 		entity->type = type;
 		entity->source_instance = sound_source_instance_create(sound, entity->source_buffer, true);
 		sound_source_apply_params_to_instance(sound, entity);
+		return true;
 	}
 	else
 	{
 		log_error("sound_source:buffer_set", "Failed to set buffer for %s", entity->base.name);
+		return false;
 	}
 }
 

src/game/sound_source.h

@@ -11,7 +11,7 @@ void sound_source_pause(struct Sound* sound, struct Sound_Source* entity);
 void sound_source_stop(struct Sound* sound, struct Sound_Source* entity);
 bool sound_source_is_paused(struct Sound* sound, struct Sound_Source* entity);
 void sound_source_update_position(struct Sound* sound, struct Sound_Source* entity);
-void sound_source_buffer_set(struct Sound* sound, struct Sound_Source* entity, const char* filename, int type);
+bool sound_source_buffer_set(struct Sound* sound, struct Sound_Source* entity, const char* filename, int type);
 void sound_source_validate_instance(struct Sound* sound, struct Sound_Source* entity);
 void sound_source_apply_params_to_instance(struct Sound* sound, struct Sound_Source* entity);
 

todo.txt

@@ -5,6 +5,7 @@ Todo:
 	- Disbale all player actions when scene cleared dialog or scene restart dialog are active
 	- Enemies getting hit by bullets
 	- Memory utils that provide allocation tracking
+	- Background music track per scene specified in scene properties
 	- Remove excessive repitition in scene and editor code that handles multiple entity types
 	- Allow switching to editor mode when game is in pause mode
 	- Rendering Additions: