Working sound system and most enemies have a sound effect. This will make it easier to add sounds now.

assets/config.json

@@ -1,4 +1,9 @@
 {
+  "sounds": {
+    "sword_1": "assets/sword.1.ogg",
+    "monster_16": "assets/monster-16.ogg",
+    "monster_1": "assets/monster-1.ogg"
+  },
   "sprites": {
     "armored_knight": "assets/armored_knight_1-256.png",
     "sword": "assets/cinqueda_1-512.png",

assets/enemies.json

@@ -23,7 +23,8 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 5},
       {"_type": "Animation", "scale": 0.2, "simple": true, "frames": 10, "speed": 0.3},
-      {"_type": "Sprite", "name": "armored_knight"}
+      {"_type": "Sprite", "name": "armored_knight"},
+      {"_type": "Sound", "attack": "monster_1", "death": "monster_16"}
     ]
   },
   "AXE_RANGER": {
@@ -36,7 +37,8 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": true},
       {"_type": "EnemyConfig", "hearing_distance": 5},
       {"_type": "Sprite", "name": "axe_ranger"},
-      {"_type": "Animation", "scale": 0.2, "simple": false, "frames": 10, "speed": 0.6}
+      {"_type": "Animation", "scale": 0.2, "simple": false, "frames": 10, "speed": 0.6},
+      {"_type": "Sound", "attack": "sword_1", "death": "monster_16"}
     ]
   },
   "EVIL_EYE": {
@@ -49,7 +51,8 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 5},
       {"_type": "Sprite", "name": "evil_eye"},
-      {"_type": "Animation", "scale": 0.2, "simple": false, "frames": 10, "speed": 0.3}
+      {"_type": "Animation", "scale": 0.2, "simple": false, "frames": 10, "speed": 0.3},
+      {"_type": "Sound", "attack": "monster_1", "death": "monster_16"}
     ]
   },
   "RAT_GIANT": {
@@ -62,7 +65,8 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 10},
       {"_type": "Animation", "scale": 0.2, "simple": true, "frames": 10, "speed": 1.0},
-      {"_type": "Sprite", "name": "rat_with_sword"}
+      {"_type": "Sprite", "name": "rat_with_sword"},
+      {"_type": "Sound", "attack": "sword_1", "death": "monster_16"}
     ]
   },
   "SPIDER_GIANT_HAIRY": {
@@ -75,7 +79,8 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 10},
       {"_type": "Animation", "scale": 0.2, "simple": true, "frames": 10, "speed": 1.0},
-      {"_type": "Sprite", "name": "hairy_spider"}
+      {"_type": "Sprite", "name": "hairy_spider"},
+      {"_type": "Sound", "attack": "sword_1", "death": "monster_16"}
     ]
   }
 }

components.cpp

@@ -13,6 +13,7 @@ namespace components {
   ENROLL_COMPONENT(Device, config, events);
   ENROLL_COMPONENT(Sprite, name);
   ENROLL_COMPONENT(Animation, scale, simple, frames, speed);
+  ENROLL_COMPONENT(Sound, attack, death);
 
   void configure_entity(const ComponentMap& component_map, DinkyECS::World& world, DinkyECS::Entity ent, json& data) {
     for (auto &i : data) {
@@ -35,6 +36,7 @@ namespace components {
     components::enroll<Device>(component_map);
     components::enroll<Sprite>(component_map);
     components::enroll<Animation>(component_map);
+    components::enroll<Sound>(component_map);
   }
 
   void Animation::play() {

components.hpp

@@ -86,6 +86,11 @@ namespace components {
     string name;
   };
 
+  struct Sound {
+    std::string attack;
+    std::string death;
+  };
+
   struct Animation {
     float scale = 0.0f;
     bool simple = true;

main.cpp

@@ -1,8 +1,10 @@
 #include "gui_fsm.hpp"
 #include "textures.hpp"
+#include "sound.hpp"
 
 int main() {
   textures::init();
+  sound::init();
   gui::FSM main;
   main.event(gui::Event::STARTED);
 

meson.build

@@ -79,6 +79,7 @@ sources = [
   'render.cpp',
   'save.cpp',
   'shiterator.hpp',
+  'sound.cpp',
   'spatialmap.cpp',
   'stats.cpp',
   'status_ui.cpp',
@@ -104,6 +105,7 @@ executable('runtests', sources + [
   'tests/map.cpp',
   'tests/matrix.cpp',
   'tests/pathing.cpp',
+  'tests/sound.cpp',
   'tests/spatialmap.cpp',
   'tests/textures.cpp',
   'tests/tilemap.cpp',

sound.cpp

@@ -0,0 +1,54 @@
+#include "sound.hpp"
+#include "dbc.hpp"
+#include <fmt/core.h>
+#include "config.hpp"
+
+namespace sound {
+  static SoundManager SMGR;
+  static bool initialized = false;
+
+  using namespace fmt;
+  using std::make_shared;
+  namespace fs = std::filesystem;
+
+  void init() {
+    if(!initialized) {
+      Config assets("assets/config.json");
+
+      for(auto& el : assets["sounds"].items()) {
+        load(el.key(), el.value());
+      }
+      initialized = true;
+    }
+  }
+
+  void load(const std::string name, const std::string sound_path) {
+    dbc::check(fs::exists(sound_path), fmt::format("sound file {} does not exist", sound_path));
+
+    // create the buffer and keep in the buffer map
+    auto buffer = make_shared<sf::SoundBuffer>(sound_path);
+
+    // set it on the sound and keep in the sound map
+    auto sound = make_shared<sf::Sound>(*buffer);
+    sound->setRelativeToListener(false);
+    sound->setPosition({0.0f, 0.0f, 1.0f});
+
+    SMGR.sounds.try_emplace(name, buffer, sound);
+  }
+
+  void play(const std::string name) {
+    dbc::check(initialized, "You need to call sound::init() first");
+    dbc::check(SMGR.sounds.contains(name), fmt::format("sound {} is not loaded in map", name));
+    // get the sound from the sound map
+    auto pair = SMGR.sounds.at(name);
+    // play it
+    pair.sound->play();
+  }
+
+  void play_at(const std::string name, float x, float y, float z) {
+    dbc::check(initialized, "You need to call sound::init() first");
+    auto pair = SMGR.sounds.at(name);
+    pair.sound->setPosition({x, y, z});
+    pair.sound->play();
+  }
+}

sound.hpp

@@ -0,0 +1,22 @@
+#pragma once
+#include <string>
+#include <filesystem>
+#include <memory>
+#include <unordered_map>
+#include <SFML/Audio.hpp>
+
+namespace sound {
+  struct SoundPair {
+    std::shared_ptr<sf::SoundBuffer> buffer;
+    std::shared_ptr<sf::Sound> sound;
+  };
+
+  struct SoundManager {
+    std::unordered_map<std::string, SoundPair> sounds;
+  };
+
+  void init();
+  void load(const std::string name, const std::string path);
+  void play(const std::string name);
+  void play_at(const std::string name, float x, float y, float z);
+}

systems.cpp

@@ -8,6 +8,7 @@
 #include "lights.hpp"
 #include "inventory.hpp"
 #include "events.hpp"
+#include "sound.hpp"
 
 using std::string;
 using namespace fmt;
@@ -133,6 +134,10 @@ void System::death(GameLevel &level, components::ComponentMap& components) {
     world.remove<EnemyConfig>(ent);
     world.remove<Animation>(ent);
 
+    if(auto snd = world.get_if<Sound>(ent)) {
+      sound::play(snd->death);
+    }
+
     auto entity_data = config.items["GRAVE_STONE"];
     components::configure_entity(components, world, ent, entity_data["components"]);
     if(entity_data["inventory_count"] > 0) {
@@ -167,6 +172,10 @@ void System::combat(GameLevel &level) {
           animation.play();
         }
 
+        if(auto snd = world.get_if<Sound>(entity)) {
+          sound::play(snd->attack);
+        }
+
         world.send<Events::GUI>(Events::GUI::COMBAT, entity, result);
       }
     }

tests/sound.cpp

@@ -0,0 +1,15 @@
+#include <catch2/catch_test_macros.hpp>
+#include <fmt/core.h>
+#include <string>
+#include "sound.hpp"
+#include "levelmanager.hpp"
+
+using namespace fmt;
+
+TEST_CASE("test sound manager", "[sound]") {
+  sound::init();
+
+  sound::play("sword_1");
+
+  sound::play_at("sword_1", 0.1, 0.1, 0.1);
+}