Play sound effect my mouse click using SDL3_mixer and C

main.c

/*
 * This example code $WHAT_IT_DOES.
 *
 * This code is public domain. Feel free to use it for any purpose!
 */

#define SDL_MAIN_USE_CALLBACKS 1  /* use the callbacks instead of main() */
#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>
#include <SDL3_mixer/SDL_mixer.h>

/* We will use this renderer to draw into this window every frame. */
static SDL_Window *window = NULL;
static SDL_Renderer *renderer = NULL;
static Mix_Chunk *g_wave = NULL;

/* This function runs once at startup. */
SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
{
    SDL_SetAppMetadata("Example HUMAN READABLE NAME", "1.0", "com.example.CATEGORY-NAME");

    if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
        SDL_Log("Couldn't initialize SDL: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    if (!SDL_CreateWindowAndRenderer("examples/CATEGORY/NAME", 300, 300, 0, &window, &renderer)) {
        SDL_Log("Couldn't create window/renderer: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    SDL_AudioSpec spec;
    spec.freq = MIX_DEFAULT_FREQUENCY;
    spec.format = MIX_DEFAULT_FORMAT;
    spec.channels = MIX_DEFAULT_CHANNELS;

    // Open the audio device
    if (!Mix_OpenAudio(0, &spec)) {
        SDL_Log("Couldn't open audio: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    // Load the WAV file
    const char *soundFilePath = "assets/audio/picked-coin-echo-2.wav";
    g_wave = Mix_LoadWAV(soundFilePath);
    if (g_wave == NULL) {
        SDL_Log("Couldn't load WAV file %s: %s", soundFilePath, SDL_GetError());
        return SDL_APP_FAILURE;
    }

    return SDL_APP_CONTINUE;  /* carry on with the program! */
}

/* This function runs when a new event (mouse input, keypresses, etc) occurs. */
SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
{
    if (event->type == SDL_EVENT_QUIT) {
        return SDL_APP_SUCCESS;  /* end the program, reporting success to the OS. */
    } else if (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
        // Play the sound effect
        Mix_PlayChannel(-1, g_wave, 0);
    }
    return SDL_APP_CONTINUE;  /* carry on with the program! */
}

/* This function runs once per frame, and is the heart of the program. */
SDL_AppResult SDL_AppIterate(void *appstate)
{
    // Clear the screen
    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
    SDL_RenderClear(renderer);

    // Update the screen
    SDL_RenderPresent(renderer);
    return SDL_APP_CONTINUE;  /* carry on with the program! */
}

/* This function runs once at shutdown. */
void SDL_AppQuit(void *appstate, SDL_AppResult result)
{
    /* SDL will clean up the window/renderer for us. */
    if (g_wave) {
        Mix_FreeChunk(g_wave);
        g_wave = NULL;
    }
    SDL_Quit();
}