KO graphics and sound + background music and sound support!

1 files changed, 37 insertions, 1 deletions

diff --git a/src/main.cpp b/src/main.cpp
index eeed38f..c497786 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -119,6 +119,33 @@ int l_keycode_from_string(lua_State *L)
     return 1;
 }
 
+int l_play_sound(lua_State* L) {
+    const char* filepath = luaL_checkstring(L, 1);
+    Mix_Chunk* sound = Mix_LoadWAV(filepath);
+    if (!sound) {
+        std::cerr << "Failed to load sound: " << Mix_GetError() << std::endl;
+        return 0;
+    }
+    Mix_PlayChannel(-1, sound, 0);  // Play once on any free channel
+    return 0;
+}
+
+int l_play_sound_loop(lua_State* L) {
+    const char* filepath = luaL_checkstring(L, 1);
+    Mix_Chunk* sound = Mix_LoadWAV(filepath);
+    if (!sound) {
+        std::cerr << "Failed to load sound: " << Mix_GetError() << std::endl;
+        return 0;
+    }
+    Mix_PlayChannel(-1, sound, -1);  // Play forever until stopped on any free channel
+    return 0;
+}
+
+int l_stop_all_sounds(lua_State* L) {
+    Mix_HaltChannel(-1);  // Stops all channels immediately
+    return 0;             // No return values to Lua
+}
+
 int l_queue_button_for_render(lua_State *L)
 {
     const char *text = luaL_checkstring(L, 1);
@@ -333,6 +360,9 @@ void expose_c_functions()
     lua_register(L, "getTextWidth", l_get_text_width);
     lua_register(L, "quitGame", l_quit_game);
     lua_register(L, "queueRectForRender", l_queue_rect_for_render);
+    lua_register(L, "playSound", l_play_sound);
+    lua_register(L, "playSoundLoop", l_play_sound_loop);
+    lua_register(L, "stopAllSounds", l_stop_all_sounds);
 }
 
 int main()
@@ -370,6 +400,12 @@ int main()
     SDL_SetWindowResizable(window, SDL_TRUE);
     SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP);
 
+    if (Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048) == -1)
+    {
+        std::cerr << "Mix_OpenAudio failed: " << Mix_GetError() << std::endl;
+        return 1;
+    }
+
     if (TTF_Init() == -1)
     {
         std::cerr << "TTF_Init failed: " << TTF_GetError() << std::endl;
@@ -549,7 +585,7 @@ int main()
         textList.clear();
 
         SDL_RenderPresent(renderer);
-        
+
         // Frame limiting
         Uint32 frameTime = SDL_GetTicks() - frameStart;
         const int targetFrameTimeMs = 1000 / 60;  // 60 FPS