bring audio functions into cat_api.h

etc/audio.c

@@ -1,39 +0,0 @@
-#include <stdio.h>
-#include <SDL2/SDL.h>
-
-static unsigned int wav_length; /* length of our sample */
-static unsigned char* wav_buffer; /* buffer containing our audio file */
-static SDL_AudioSpec wav_spec;
-static SDL_AudioDeviceID device_id = 0;
-static int cat_audio_playing = 0;
-
-void cat_stop_audio(void) {
-	SDL_PauseAudioDevice(device_id, 1);
-	SDL_CloseAudioDevice(device_id);
-	SDL_FreeWAV(wav_buffer);
-	cat_audio_playing = 0;
-	/*SDL_Quit();*/
-}
-
-void cat_play_wav(char* file)
-{
-	if (cat_audio_playing) cat_stop_audio();
-	cat_audio_playing = 1;
-	if (SDL_LoadWAV(file, &wav_spec, &wav_buffer, &wav_length) == NULL) {
-		printf("file is null!!\n");
-		return;
-	}
-	device_id = SDL_OpenAudioDevice(NULL, 0, &wav_spec, NULL, 0);
-	SDL_QueueAudio(device_id, wav_buffer, wav_length);
-	SDL_PauseAudioDevice(device_id, 0);
-}
-
-int main(int argc, char** argv) {
-	SDL_Init(SDL_INIT_EVERYTHING);
-	cat_play_wav("etc/example.wav");
-	SDL_Delay(300);
-	cat_stop_audio();
-	fgetc(stdin);
-	return 0;
-}
-