added mp3 functionality

fixed bug where last move on correct square didn't register

assets/audio.go

@@ -8,6 +8,7 @@ import (
 	"log"
 
 	"github.com/hajimehoshi/ebiten/v2/audio"
+	"github.com/hajimehoshi/ebiten/v2/audio/mp3"
 	"github.com/hajimehoshi/ebiten/v2/audio/wav"
 )
 
@@ -30,7 +31,7 @@ func loadTracksForSong(sng int) map[int]*audio.Player {
 
 var SFXLibrary = map[string]*audio.Player{
 	"newLevel":    LoadWavAudioFile("audio/portal2.wav", false),
-	"colourMatch": LoadWavAudioFile("audio/portal.wav", false),
+	"colourMatch": LoadMP3AudioFile("audio/portal.mp3", false),
 	"gameOver":    LoadWavAudioFile("audio/gameOver.wav", false),
 }
 
@@ -64,6 +65,36 @@ func LoadWavAudioFile(filePath string, loop bool) *audio.Player {
 
 }
 
+func LoadMP3AudioFile(filePath string, loop bool) *audio.Player {
+
+	audioData, err := fs.ReadFile(embeddedFiles, filePath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	stream, err := mp3.DecodeWithSampleRate(sampleRate, bytes.NewReader(audioData))
+	if err != nil {
+		log.Fatalf("failed to decode audio: %v", err)
+	}
+
+	var player *audio.Player
+
+	if loop {
+		lengthOfAudioData := int64(len(audioData))
+		loopingStream := audio.NewInfiniteLoop(stream, lengthOfAudioData)
+		player, err = audioContext.NewPlayer(loopingStream)
+
+	} else {
+		player, err = audioContext.NewPlayer(stream)
+	}
+
+	if err != nil {
+		log.Fatal(err)
+	}
+	return player
+
+}
+
 func SilenceSongTracks() {
 	for _, song := range SongTracks {
 		song.SetVolume(0)