Added music and sfx.

assets/audiobank.go

@@ -0,0 +1,57 @@
+package assets
+
+import (
+	"bytes"
+	_ "embed"
+	"log"
+
+	"github.com/hajimehoshi/ebiten/v2/audio/wav"
+)
+
+type SndAssetName string
+
+const (
+	MainLoop SndAssetName = "MainLoop"
+	Explode  SndAssetName = "Explode"
+
+	sampleRate = 44100
+)
+
+var (
+	SoundBank map[SndAssetName]*wav.Stream
+
+	//go:embed loop.wav
+	mainloop_snd []byte
+	//go:embed explode.wav
+	explode_snd []byte
+
+	//go:embed explode.wav
+	Splode []byte
+	//go:embed hit.wav
+	TargetHit []byte
+	//go:embed herodeath.wav
+	HeroDeath []byte
+	//go:embed shot.wav
+	Shot []byte
+	//go:embed magic.wav
+	Magic []byte
+	//go:embed survive.wav
+	Survive []byte
+)
+
+func LoadSounds() {
+	SoundBank = make(map[SndAssetName]*wav.Stream)
+
+	SoundBank[MainLoop] = LoadSoundFatal(sampleRate, mainloop_snd)
+	SoundBank[Explode] = LoadSoundFatal(sampleRate, explode_snd)
+}
+
+func LoadSoundFatal(rate int, obj []byte) *wav.Stream {
+
+	stream, err := wav.DecodeWithSampleRate(rate, bytes.NewReader(obj))
+	if err != nil {
+		log.Fatal("dead, jim")
+	}
+
+	return stream
+}

assets/imagebank.go

@@ -10,27 +10,22 @@ import (
 	"github.com/hajimehoshi/ebiten/v2"
 )
 
-type AssetName string
+type ImgAssetName string
 
 const (
-	FlyEyeNormal  AssetName = "FlyEyeNormal"
+	FlyEyeNormal  ImgAssetName = "FlyEyeNormal"
-	FlyEyeDamaged AssetName = "FlyEyeDamaged"
+	FlyEyeDamaged ImgAssetName = "FlyEyeDamaged"
-	FlyEyeDying   AssetName = "FlyEyeDying"
+	FlyEyeDying   ImgAssetName = "FlyEyeDying"
-	FlyEyeShadow  AssetName = "FlyEyeShadow"
+	FlyEyeShadow  ImgAssetName = "FlyEyeShadow"
-	HeroNormal    AssetName = "HeroNormal"
+	HeroNormal    ImgAssetName = "HeroNormal"
-	HeroDying     AssetName = "HeroDying"
+	HeroDying     ImgAssetName = "HeroDying"
-	TileSet       AssetName = "TileSet"
+	TileSet       ImgAssetName = "TileSet"
-	Altar         AssetName = "Altar"
+	Altar         ImgAssetName = "Altar"
-	Weapon        AssetName = "Weapon"
+	Weapon        ImgAssetName = "Weapon"
 )
 
 var (
-	ImageBank map[AssetName]*ebiten.Image
+	ImageBank map[ImgAssetName]*ebiten.Image
-
-	flyeyeImage  *ebiten.Image
-	flyeyeImage2 *ebiten.Image
-	flyeyeImage3 *ebiten.Image
-	shadow       *ebiten.Image
 
 	//go:embed fly-eye.png
 	flyeye_img []byte
@@ -53,7 +48,7 @@ var (
 )
 
 func LoadImages() {
-	ImageBank = make(map[AssetName]*ebiten.Image)
+	ImageBank = make(map[ImgAssetName]*ebiten.Image)
 
 	ImageBank[FlyEyeNormal] = LoadImagesFatal(flyeye_img)
 	ImageBank[FlyEyeDamaged] = LoadImagesFatal(flyeye_img2)

elements/mover.go

@@ -36,6 +36,7 @@ type Mover struct {
 	Toggled         bool
 	Hit             bool
 	Touched         bool
+	SplodeInitiated bool
 	dyingcount      int
 }
 
@@ -50,6 +51,7 @@ func NewMover() *Mover {
 		rotating:        false,
 		Toggled:         false,
 		dyingcount:      0,
+		SplodeInitiated: false,
 	}
 
 	m.Maks.Fill(color.White)
@@ -82,14 +84,8 @@ func (m *Mover) Draw() {
 
 	switch m.Action {
 	case MoverActionDefault:
-		op := &ebiten.DrawImageOptions{}
-		op.GeoM.Translate(14, 40)
-		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeShadow], op)
 		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeNormal].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
 	case MoverActionDamaged:
-		op := &ebiten.DrawImageOptions{}
-		op.GeoM.Translate(14, 40)
-		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeShadow], op)
 		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeDamaged].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
 	case MoverActionDying:
 

go.mod

@@ -13,6 +13,7 @@ require (
 require (
 	github.com/ebitengine/gomobile v0.0.0-20240911145611-4856209ac325 // indirect
 	github.com/ebitengine/hideconsole v1.0.0 // indirect
+	github.com/ebitengine/oto/v3 v3.3.1 // indirect
 	github.com/ebitengine/purego v0.8.0 // indirect
 	github.com/jezek/xgb v1.1.1 // indirect
 	golang.org/x/sync v0.8.0 // indirect

main.go

@@ -33,6 +33,7 @@ func main() {
 
 func loadScreens(m *screenmanager.Manager) {
 	assets.LoadImages()
+	assets.LoadSounds()
 	m.AddScene(screens.NewStartScreen())
 	m.AddScene(screens.NewGame())
 	m.ResetScenes()

screenmanager/manager.go

@@ -26,7 +26,7 @@ func NewManager() Manager {
 	return Manager{
 		Info: gamedata.GameInfo{
 			Name:    "survive",
-			Version: "0.12",
+			Version: "0.16",
 			Dimensions: gamedata.Area{
 				Width:  defaultWidth,
 				Height: defaultHeight,

screens/game.go

@@ -11,9 +11,8 @@ import (
 	"mover/fonts"
 	"mover/gamedata"
 
-	_ "embed"
-
 	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/audio"
 	"github.com/hajimehoshi/ebiten/v2/inpututil"
 	"github.com/hajimehoshi/ebiten/v2/text"
 	"github.com/hajimehoshi/ebiten/v2/vector"
@@ -22,6 +21,7 @@ import (
 const (
 	MOVER_WIDTH  = 48
 	MOVER_HEIGHT = 48
+	sampleRate   = 44100
 )
 
 type Game struct {
@@ -38,10 +38,13 @@ type Game struct {
 	initialized      bool
 	gameover         bool
 	reset            bool
+	musicInitialized bool
 	runtime          float64
 	hero             *elements.Hero
 	projectiles      map[int]*elements.Projectile
 	explosion        *elements.Explosion
+	audioplayer      *audio.Player
+	sfxplayer        []*audio.Player
 
 	score   int
 	counter int
@@ -54,15 +57,39 @@ type Game struct {
 	//pressedButtons map[ebiten.GamepadID][]string
 }
 
+var (
+	audioContext = audio.NewContext(sampleRate)
+)
+
 func NewGame() *Game {
 	g := &Game{
 		events:           make(map[ScreenManagerEvent]func()),
+		musicInitialized: false,
 	}
 	return g
 }
 
 func (g *Game) Initialize() {
 
+	if !g.musicInitialized {
+		//s, _ := wav.DecodeWithSampleRate(sampleRate)
+		//d, _ := wav.DecodeWithSampleRate(sampleRate, bytes.NewReader(loop_wav))
+
+		s := audio.NewInfiniteLoop(assets.SoundBank[assets.MainLoop], assets.SoundBank[assets.MainLoop].Length())
+
+		/*
+
+				reader := bytes.NewReader(loop_wav)
+
+			s := audio.NewInfiniteLoopF32(reader, reader.Length())
+		*/
+		g.audioplayer, _ = audioContext.NewPlayer(s)
+
+		g.audioplayer.Play()
+
+		g.musicInitialized = true
+	}
+
 	origin := gamedata.Coordinates{X: 640 / 2, Y: 480 / 2}
 
 	g.ConstructBackground()
@@ -143,17 +170,6 @@ func (g *Game) Draw(screen *ebiten.Image) {
 			g.runtime = float64(g.counter) / 60.
 		}
 
-		s := fmt.Sprintf("%02.3f", g.runtime)
-		if !g.gameover {
-			text.Draw(screen, "TIME: "+s, fonts.SurviveFont.Arcade, 640/2-250, 25, color.White)
-			text.Draw(screen, fmt.Sprintf("SCORE: %d", g.score*10), fonts.SurviveFont.Arcade, 640/2+100, 25, color.White)
-		} else {
-			if (g.counter/30)%2 == 0 {
-				text.Draw(screen, "TIME: "+s, fonts.SurviveFont.Arcade, 640/2-250, 25, color.White)
-				text.Draw(screen, fmt.Sprintf("SCORE: %d", g.score*10), fonts.SurviveFont.Arcade, 640/2+100, 25, color.White)
-			}
-		}
-
 		op.GeoM.Translate(-MOVER_WIDTH/2, -MOVER_HEIGHT/2)
 		//op.GeoM.Rotate(g.hero.Angle)
 		op.GeoM.Translate(g.hero.Pos.X, g.hero.Pos.Y)
@@ -175,7 +191,15 @@ func (g *Game) Draw(screen *ebiten.Image) {
 				op.GeoM.Rotate(g.hero.Angle + math.Pi)
 				op.GeoM.Translate(g.hero.Pos.X, g.hero.Pos.Y)
 				screen.DrawImage(weaponImage, op)
-			}*/
+			}
+		*/
+
+		//draw shadows
+		for _, target := range g.targets {
+			op := &ebiten.DrawImageOptions{}
+			op.GeoM.Translate(target.Pos.X-10, target.Pos.Y+10)
+			screen.DrawImage(assets.ImageBank[assets.FlyEyeShadow], op)
+		}
 
 		for _, target := range g.targets {
 			target.Draw()
@@ -201,6 +225,19 @@ func (g *Game) Draw(screen *ebiten.Image) {
 
 		/*for _, gamepad 	ebiten.StandardGamepadAxisValue(id, ebiten.StandardGamepadAxisRightStickHorizontal),
 		ebiten.StandardGamepadAxisValue(id, ebiten.StandardGamepadAxisRightStickVertical))*/
+
+		s := fmt.Sprintf("%02.3f", g.runtime)
+		if !g.gameover {
+			text.Draw(screen, "TIME: "+s, fonts.SurviveFont.Arcade, 640/2-250, 25, color.White)
+			text.Draw(screen, fmt.Sprintf("SCORE: %d", g.score*10), fonts.SurviveFont.Arcade, 640/2+100, 25, color.White)
+		} else {
+			if (g.counter/30)%2 == 0 {
+				text.Draw(screen, "TIME: "+s, fonts.SurviveFont.Arcade, 640/2-250, 25, color.White)
+				text.Draw(screen, fmt.Sprintf("SCORE: %d", g.score*10), fonts.SurviveFont.Arcade, 640/2+100, 25, color.White)
+			}
+
+			text.Draw(screen, "PRESS START TO TRY AGAIN", fonts.SurviveFont.Arcade, 640/2-150, 480/2, color.White)
+		}
 	}
 }
 
@@ -237,6 +274,10 @@ func (g *Game) StepGame() {
 
 	if !g.Paused {
 
+		if !g.audioplayer.IsPlaying() {
+			g.audioplayer.Play()
+		}
+
 		g.hero.Update()
 		g.explosion.Update()
 
@@ -255,6 +296,8 @@ func (g *Game) StepGame() {
 
 		g.CleanupTargets()
 		g.counter++
+	} else {
+		g.audioplayer.Pause()
 	}
 }
 
@@ -351,6 +394,13 @@ func (g *Game) UpdateProjectiles() {
 						target.SetHit()
 						//target.SetOrigin(gamedata.Coordinates{X: rand.Float64() * 640, Y: rand.Float64() * 480})
 						target.Hit = true
+
+						//var err error
+						//player, err := audioContext.NewPlayer(assets.SoundBank[assets.Explode])
+
+						player := audioContext.NewPlayerFromBytes(assets.TargetHit)
+						player.Play()
+
 						break
 					}
 				}
@@ -362,6 +412,12 @@ func (g *Game) UpdateProjectiles() {
 func (g *Game) UpdateTargets() {
 	for _, target := range g.targets {
 
+		if target.Action == elements.MoverActionExploding && !target.SplodeInitiated {
+			player := audioContext.NewPlayerFromBytes(assets.Splode)
+			player.Play()
+			target.SplodeInitiated = true
+		}
+
 		if !target.Hit && g.hero.Action < elements.HeroActionDying {
 			dx := g.hero.Pos.X - target.Pos.X
 			dy := g.hero.Pos.Y - target.Pos.Y
@@ -394,6 +450,9 @@ func (g *Game) UpdateTargets() {
 					//fmt.Println("pixel death")
 					g.hero.SetHit()
 					g.gameover = true
+
+					player := audioContext.NewPlayerFromBytes(assets.HeroDeath)
+					player.Play()
 					break
 				}
 			}
@@ -417,6 +476,9 @@ func (g *Game) AppendProjectiles() {
 		if g.hero.Upgrade {
 			g.projectiles[g.counter+1] = elements.NewProjectile(gamedata.Coordinates{X: g.hero.Pos.X, Y: g.hero.Pos.Y}, g.hero.Angle+math.Pi, 5.)
 		}
+
+		player := audioContext.NewPlayerFromBytes(assets.Shot)
+		player.Play()
 	}
 }
 
@@ -427,6 +489,8 @@ func (g *Game) HandleInput() {
 			g.explosion.SetOrigin(g.hero.Pos)
 			g.explosion.Reset()
 			g.explosion.ToggleActivate()
+			player := audioContext.NewPlayerFromBytes(assets.Magic)
+			player.Play()
 		}
 	}
 
@@ -453,6 +517,10 @@ func (g *Game) HandleInput() {
 		inputangle := math.Atan2(yaxis, xaxis)
 		g.hero.SetAngle(inputangle)
 	}
+
+	if inpututil.IsKeyJustPressed(ebiten.KeyQ) {
+		g.events[EventEndgame]()
+	}
 	//}
 }
 

screens/start.go

@@ -3,6 +3,7 @@ package screens
 import (
 	"image/color"
 	"math"
+	"mover/assets"
 	"mover/fonts"
 	"mover/gamedata"
 
@@ -17,6 +18,8 @@ type StartScreen struct {
 	target        gamedata.Coordinates
 	current       gamedata.Coordinates
 	targetreached bool
+	audioplayed   bool
+	cycle         int
 }
 
 func NewStartScreen() *StartScreen {
@@ -25,6 +28,8 @@ func NewStartScreen() *StartScreen {
 		target:        gamedata.Coordinates{X: 640/2 - 150, Y: 480 / 2},
 		current:       gamedata.Coordinates{X: 640/2 - 150, Y: -100},
 		targetreached: false,
+		cycle:         0,
+		audioplayed:   false,
 	}
 	return s
 }
@@ -36,13 +41,24 @@ func (s *StartScreen) Update() error {
 		s.eHandler[EventCompleted]()
 	}
 
+	if !s.audioplayed {
+		player := audioContext.NewPlayerFromBytes(assets.Survive)
+		player.Play()
+		s.audioplayed = true
+	}
+
+	if !s.targetreached {
 		s.current.X += (s.target.X - s.current.X) / 8
 		s.current.Y += (s.target.Y - s.current.Y) / 8
+	} else {
+		s.current.Y += 0.5 * math.Sin(float64(s.cycle)/(math.Pi*8))
+	}
 
 	if math.Abs(s.current.Y-s.target.Y) < 1 && !s.targetreached {
 		s.targetreached = true
 	}
 
+	s.cycle++
 	return nil
 }