commit d9d09e5169b046bb37e65392bd5defcafd367cd9
Author: iegod <diegob@gmail.com>
Date:   Sun Dec 8 12:24:33 2024 -0500

    Initial commit.

diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..070806a
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "ducky",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "main.go"
+        }        
+    ]
+}
\ No newline at end of file
diff --git a/assets/duck_idle.png b/assets/duck_idle.png
new file mode 100644
index 0000000..b648c5e
Binary files /dev/null and b/assets/duck_idle.png differ
diff --git a/assets/imagebank.go b/assets/imagebank.go
new file mode 100644
index 0000000..4e81b48
--- /dev/null
+++ b/assets/imagebank.go
@@ -0,0 +1,45 @@
+package assets
+
+import (
+	"bytes"
+	_ "embed"
+	"image"
+	_ "image/png"
+	"log"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type ImgAssetName string
+
+const (
+	Ducky   ImgAssetName = "Ducky"
+	ReDucky ImgAssetName = "ReDucky"
+	Orb     ImgAssetName = "Orb"
+)
+
+var (
+	ImageBank map[ImgAssetName]*ebiten.Image
+
+	//go:embed duck_idle.png
+	duckidle_img []byte
+	//go:embed reducky_idle.png
+	reduckidle_img []byte
+	//go:embed orb.png
+	orb_img []byte
+)
+
+func LoadImages() {
+	ImageBank = make(map[ImgAssetName]*ebiten.Image)
+	ImageBank[Ducky] = LoadImagesFatal(duckidle_img)
+	ImageBank[ReDucky] = LoadImagesFatal(reduckidle_img)
+	ImageBank[Orb] = LoadImagesFatal(orb_img)
+}
+
+func LoadImagesFatal(b []byte) *ebiten.Image {
+	img, _, err := image.Decode(bytes.NewReader(b))
+	if err != nil {
+		log.Fatal(err)
+	}
+	return ebiten.NewImageFromImage(img)
+}
diff --git a/assets/mainloop.ogg b/assets/mainloop.ogg
new file mode 100644
index 0000000..c22ac93
Binary files /dev/null and b/assets/mainloop.ogg differ
diff --git a/assets/orb.png b/assets/orb.png
new file mode 100644
index 0000000..4523413
Binary files /dev/null and b/assets/orb.png differ
diff --git a/assets/reducky_idle.png b/assets/reducky_idle.png
new file mode 100644
index 0000000..df5a75d
Binary files /dev/null and b/assets/reducky_idle.png differ
diff --git a/assets/soundbank.go b/assets/soundbank.go
new file mode 100644
index 0000000..57db74f
--- /dev/null
+++ b/assets/soundbank.go
@@ -0,0 +1,74 @@
+package assets
+
+import (
+	"bytes"
+	"log"
+
+	_ "embed"
+
+	"github.com/hajimehoshi/ebiten/v2/audio/mp3"
+	"github.com/hajimehoshi/ebiten/v2/audio/vorbis"
+	"github.com/hajimehoshi/ebiten/v2/audio/wav"
+)
+
+type SndAssetName string
+
+const (
+	MainLoop    SndAssetName = "MainLoop"
+	MainLoopMp3 SndAssetName = "MainLoopMp3"
+	MainLoopOgg SndAssetName = "MainLoopOgg"
+	SampleRate               = 44100
+)
+
+var (
+	//SoundBank    map[SndAssetName]*wav.Stream
+	//SoundBankMp3 map[SndAssetName]*mp3.Stream
+	SoundBankOgg map[SndAssetName]*vorbis.Stream
+	//go:embed mainloop.ogg
+	mainloop_snd []byte
+)
+
+func init() {
+	LoadSounds()
+}
+
+func LoadSounds() {
+	//SoundBank = make(map[SndAssetName]*wav.Stream)
+	//SoundBankMp3 = make(map[SndAssetName]*mp3.Stream)
+	SoundBankOgg = make(map[SndAssetName]*vorbis.Stream)
+
+	//SoundBank[MainLoop] = LoadSoundFatal(SampleRate, hyper_snd)
+	//SoundBankMp3[MainLoopMp3] = LoadSoundFatalMp3(SampleRate, mainloop_snd)
+	SoundBankOgg[MainLoopOgg] = LoadSoundFatalOgg(SampleRate, mainloop_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
+}
+
+func LoadSoundFatalMp3(rate int, obj []byte) *mp3.Stream {
+
+	stream, err := mp3.DecodeWithSampleRate(rate, bytes.NewReader(obj))
+	if err != nil {
+		log.Fatal("dead, jim")
+	}
+
+	return stream
+}
+
+func LoadSoundFatalOgg(rate int, obj []byte) *vorbis.Stream {
+
+	stream, err := vorbis.DecodeWithSampleRate(rate, bytes.NewReader(obj))
+	if err != nil {
+		log.Fatal("dead, jim")
+	}
+
+	return stream
+}
diff --git a/elements/duck.go b/elements/duck.go
new file mode 100644
index 0000000..7a6a68d
--- /dev/null
+++ b/elements/duck.go
@@ -0,0 +1,54 @@
+package elements
+
+import (
+	"ducky/gamedata"
+	"image"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"golang.org/x/exp/rand"
+)
+
+const (
+	DuckyWidth  = 36
+	DuckyHeight = DuckyWidth
+)
+
+type Ducky struct {
+	Sprite   *ebiten.Image
+	asset    *ebiten.Image
+	cycle    int
+	position gamedata.Coordinates
+}
+
+func NewDucky(asset *ebiten.Image) *Ducky {
+	d := &Ducky{
+		Sprite: ebiten.NewImage(DuckyWidth, DuckyHeight),
+		asset:  asset,
+		cycle:  rand.Intn(11),
+	}
+	return d
+}
+
+func (d *Ducky) Update() {
+	d.cycle++
+}
+
+func (d *Ducky) Draw() {
+	d.Sprite.Clear()
+
+	idx := d.cycle / 4 % 10
+	x0 := idx * DuckyWidth
+	y0 := 0
+	x1 := x0 + DuckyWidth
+	y1 := DuckyHeight
+
+	d.Sprite.DrawImage(d.asset.SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+}
+
+func (d *Ducky) SetPosition(pos gamedata.Coordinates) {
+	d.position = pos
+}
+
+func (d *Ducky) GetPosition() gamedata.Coordinates {
+	return d.position
+}
diff --git a/elements/slider.go b/elements/slider.go
new file mode 100644
index 0000000..0d39f6c
--- /dev/null
+++ b/elements/slider.go
@@ -0,0 +1,87 @@
+package elements
+
+import (
+	"ducky/gamedata"
+	"image/color"
+	"math"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"golang.org/x/exp/rand"
+)
+
+const (
+	sliderWidth  = 640 / 5
+	sliderHeight = 480
+	easeValue    = 16
+)
+
+type Slider struct {
+	Sprite         *ebiten.Image
+	position       gamedata.Coordinates
+	targetposition gamedata.Coordinates
+	cycle          int
+	callback       func()
+	called         bool
+	color          color.Color
+}
+
+func NewSlider() *Slider {
+	slider := &Slider{
+		Sprite: ebiten.NewImage(sliderWidth, sliderHeight),
+		called: false,
+		color: color.RGBA{
+			R: uint8(rand.Intn(256)) & 0xff,
+			G: uint8(rand.Intn(256)) & 0xff,
+			B: uint8(rand.Intn(256)) & 0xff,
+			A: 0xff,
+		},
+	}
+	return slider
+}
+
+func (s *Slider) Update() {
+
+	dx := s.targetposition.X - s.position.X
+	dy := s.targetposition.Y - s.position.Y
+
+	deltapos := math.Sqrt(dx*dx + dy*dy)
+
+	if deltapos > 0.5 {
+		s.position.X = s.position.X + dx/easeValue
+		s.position.Y = s.position.Y + dy/easeValue
+	} else {
+		if s.callback != nil && !s.called {
+			s.callback()
+			s.called = true
+		}
+	}
+
+	s.cycle++
+}
+
+func (s *Slider) Draw() {
+	s.Sprite.Clear()
+	s.Sprite.Fill(s.color)
+}
+
+func (s *Slider) GetPosition() gamedata.Coordinates {
+	return s.position
+}
+
+func (s *Slider) SetPosition(pos gamedata.Coordinates) {
+	s.position = pos
+}
+
+func (s *Slider) SetTargetPosition(pos gamedata.Coordinates) {
+	s.targetposition = pos
+}
+
+func (s *Slider) SetCallback(f func()) {
+	if f != nil {
+		s.callback = f
+	}
+}
+
+func (s *Slider) Reset() {
+	s.called = false
+}
diff --git a/elements/spotlight.go b/elements/spotlight.go
new file mode 100644
index 0000000..40ba7ce
--- /dev/null
+++ b/elements/spotlight.go
@@ -0,0 +1,33 @@
+package elements
+
+import "github.com/hajimehoshi/ebiten/v2"
+
+type Spotlight struct {
+	Sprite *ebiten.Image
+	asset  *ebiten.Image
+	cycle  int
+}
+
+func NewSpotlight(asset *ebiten.Image) *Spotlight {
+	sl := &Spotlight{
+		Sprite: ebiten.NewImage(100, 100),
+		asset:  asset,
+	}
+
+	return sl
+}
+
+func (s *Spotlight) Update() {
+	s.cycle++
+}
+
+func (s *Spotlight) Draw() {
+	s.Sprite.Clear()
+
+	op := &ebiten.DrawImageOptions{}
+	op.GeoM.Translate(-16, -16)
+	op.GeoM.Scale(3, 3)
+	op.GeoM.Translate(50, 50)
+	s.Sprite.DrawImage(s.asset, op)
+
+}
diff --git a/fonts/bitbybit.ttf b/fonts/bitbybit.ttf
new file mode 100644
index 0000000..f2222e1
Binary files /dev/null and b/fonts/bitbybit.ttf differ
diff --git a/fonts/fonts.go b/fonts/fonts.go
new file mode 100644
index 0000000..9ad8678
--- /dev/null
+++ b/fonts/fonts.go
@@ -0,0 +1,41 @@
+package fonts
+
+import (
+	"bytes"
+	"log"
+
+	_ "embed"
+
+	"github.com/hajimehoshi/ebiten/v2/text/v2"
+)
+
+type FontStruct struct {
+	Ducky *text.GoTextFaceSource
+	Karen *text.GoTextFaceSource
+}
+
+var (
+	//go:embed bitbybit.ttf
+	bitbybit_ttf []byte
+	//go:embed karenfat.ttf
+	karen_ttf []byte
+
+	DuckyFont FontStruct
+)
+
+func init() {
+	DuckyFont = FontStruct{}
+
+	s, err := text.NewGoTextFaceSource(bytes.NewReader(bitbybit_ttf))
+	if err != nil {
+		log.Fatal(err)
+	}
+	DuckyFont.Ducky = s
+
+	s, err = text.NewGoTextFaceSource(bytes.NewReader(karen_ttf))
+	if err != nil {
+		log.Fatal(err)
+	}
+	DuckyFont.Karen = s
+
+}
diff --git a/fonts/karenfat.ttf b/fonts/karenfat.ttf
new file mode 100644
index 0000000..59be609
Binary files /dev/null and b/fonts/karenfat.ttf differ
diff --git a/game/game.go b/game/game.go
new file mode 100644
index 0000000..c23708b
--- /dev/null
+++ b/game/game.go
@@ -0,0 +1,267 @@
+package game
+
+import (
+	"ducky/assets"
+	"ducky/elements"
+	"ducky/fonts"
+	"ducky/gamedata"
+	"fmt"
+	"image/color"
+	"math"
+	"math/rand"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/audio"
+	"github.com/hajimehoshi/ebiten/v2/inpututil"
+	"github.com/hajimehoshi/ebiten/v2/text/v2"
+)
+
+const (
+	screenWidth  = 640
+	screenHeight = 480
+
+	duckyWidth  = 32
+	duckyHeight = duckyWidth
+
+	spotResetDuration       = 120
+	duckySpottedTextOffsetX = 120
+	duckySpottedTextOffsetY = 32
+	duckySpottedTextSize    = 30
+	toastCount              = 120
+)
+
+var (
+	audioContext = audio.NewContext(assets.SampleRate)
+)
+
+type Game struct {
+	initialized bool
+	reducky     *elements.Ducky
+	ducky       *elements.Ducky
+	spotlight   *elements.Spotlight
+	cycle       int
+	mousepos    gamedata.Coordinates
+
+	darkness  *ebiten.Image
+	offscreen *ebiten.Image
+
+	reduckycol int
+	reduckyrow int
+
+	spottedticks    int
+	spotted         bool
+	toast           bool
+	toastcounter    int
+	disabledarkness bool
+
+	sliders []*elements.Slider
+
+	reachcount int
+
+	musicInitialized bool
+	audioplayer      *audio.Player
+}
+
+func (g *Game) Update() error {
+
+	g.HandleInput()
+
+	if !g.initialized {
+		g.Initialize()
+	}
+
+	g.UpdateDuck()
+	g.UpdateDetection()
+	//g.UpdateSliders()
+
+	g.cycle++
+
+	return nil
+}
+
+func (g *Game) Draw(screen *ebiten.Image) {
+	screen.Clear()
+	g.darkness.Clear()
+
+	if g.initialized {
+
+		//g.darkness.Fill(color.RGBA{R: 0xff, G: 0x00, B: 0x00, A: 0xff})
+		g.darkness.Fill(color.Black)
+		g.ducky.Draw()
+		g.reducky.Draw()
+
+		op := &ebiten.DrawImageOptions{}
+		for x := 0; x < screenWidth/duckyWidth; x++ {
+			for y := 0; y < screenHeight/duckyWidth; y++ {
+				op.GeoM.Reset()
+				op.GeoM.Translate(float64(x)*duckyWidth, float64(y)*duckyHeight)
+				if !(x == g.reduckycol && y == g.reduckyrow) {
+					screen.DrawImage(g.ducky.Sprite, op)
+				}
+			}
+		}
+
+		op = &ebiten.DrawImageOptions{}
+		op.GeoM.Translate(float64(g.reduckycol)*duckyWidth, float64(g.reduckyrow)*duckyHeight)
+		screen.DrawImage(g.reducky.Sprite, op)
+
+		op = &ebiten.DrawImageOptions{}
+		op.GeoM.Translate(-duckyWidth/2, -duckyHeight/2)
+		op.GeoM.Translate(g.mousepos.X, g.mousepos.Y)
+		//screen.DrawImage(assets.ImageBank[assets.Orb], op)
+
+		g.spotlight.Draw()
+
+		g.offscreen.Clear()
+		op = &ebiten.DrawImageOptions{}
+
+		spotlight_w := float64(g.spotlight.Sprite.Bounds().Dx())
+		spotlight_h := float64(g.spotlight.Sprite.Bounds().Dy())
+
+		op.GeoM.Translate(-spotlight_w/2, -spotlight_h/2)
+		op.GeoM.Translate(g.mousepos.X, g.mousepos.Y)
+		//g.offscreen.DrawImage(assets.ImageBank[assets.Orb], op)
+		g.offscreen.DrawImage(g.spotlight.Sprite, op)
+
+		op.GeoM.Reset()
+		op.Blend = ebiten.BlendXor
+		g.offscreen.DrawImage(g.darkness, op)
+
+		if !g.disabledarkness {
+			op = &ebiten.DrawImageOptions{}
+			if g.toast {
+				op.GeoM.Translate(-screenWidth/2, -screenHeight/2)
+				op.GeoM.Rotate(float64(g.toastcounter) / (math.Pi * 2))
+				op.GeoM.Translate(screenWidth/2, screenHeight/2)
+			}
+			screen.DrawImage(g.offscreen, op)
+		}
+
+		if g.spotted && !g.toast {
+			font := &text.GoTextFace{
+				Source: fonts.DuckyFont.Karen,
+				Size:   duckySpottedTextSize,
+			}
+			top := &text.DrawOptions{}
+			top.GeoM.Translate(screenWidth/2-duckySpottedTextOffsetX, screenHeight/2-duckySpottedTextOffsetY)
+			if g.cycle%30 < 15 {
+				text.Draw(screen, "DUCKY SPOTTED", font, top)
+			}
+		}
+
+		for _, s := range g.sliders {
+			s.Draw()
+			op = &ebiten.DrawImageOptions{}
+			op.GeoM.Translate(s.GetPosition().X, s.GetPosition().Y)
+			screen.DrawImage(s.Sprite, op)
+		}
+
+	}
+}
+
+func (g *Game) Layout(outsideWidth, outsideHeight int) (screenwidth, screenheight int) {
+	return screenWidth, screenHeight
+}
+
+func (g *Game) Initialize() {
+	assets.LoadImages()
+
+	g.offscreen = ebiten.NewImage(screenWidth, screenHeight)
+	g.darkness = ebiten.NewImage(screenWidth, screenHeight)
+
+	g.spotlight = elements.NewSpotlight(assets.ImageBank[assets.Orb])
+	g.ducky = elements.NewDucky(assets.ImageBank[assets.Ducky])
+	g.reducky = elements.NewDucky(assets.ImageBank[assets.ReDucky])
+
+	for i := 0; i < 5; i++ {
+		slider := elements.NewSlider()
+		g.sliders = append(g.sliders, slider)
+	}
+
+	g.initialized = true
+
+	if !g.musicInitialized {
+		//s := audio.NewInfiniteLoop(assets.SoundBank[assets.MainLoop], assets.SoundBank[assets.MainLoop].Length())
+		s := audio.NewInfiniteLoop(assets.SoundBankOgg[assets.MainLoopOgg], assets.SoundBankOgg[assets.MainLoopOgg].Length())
+		g.audioplayer, _ = audioContext.NewPlayer(s)
+		g.audioplayer.Play()
+		g.musicInitialized = true
+	}
+
+	g.Reset()
+}
+
+func (g *Game) UpdateDuck() {
+	g.ducky.Update()
+	g.reducky.Update()
+
+	x, y := ebiten.CursorPosition()
+	g.mousepos.X = float64(x)
+	g.mousepos.Y = float64(y)
+}
+
+func (g *Game) Reset() {
+	g.reduckycol = rand.Intn(screenWidth / duckyHeight)
+	g.reduckyrow = rand.Intn(screenHeight / duckyWidth)
+
+	for i, slider := range g.sliders {
+		var yoffset float64
+
+		if i%2 == 0 {
+			yoffset = screenHeight
+		} else {
+			yoffset = -screenHeight
+		}
+
+		slider.SetPosition(gamedata.Coordinates{X: float64(i) * screenWidth / 5, Y: yoffset})
+		slider.SetTargetPosition(gamedata.Coordinates{X: float64(i) * screenWidth / 5, Y: 0})
+		slider.Reset()
+	}
+
+	//fmt.Printf("Ducky Position: %d, %d\n", g.reduckycol, g.reduckyrow)
+	g.spottedticks = 0
+	g.toast = false
+	g.reachcount = 0
+	g.toastcounter = 0
+}
+
+func (g *Game) HandleInput() {
+	if inpututil.IsKeyJustPressed(ebiten.KeyR) {
+		g.Reset()
+	}
+
+	g.disabledarkness = ebiten.IsKeyPressed(ebiten.KeySpace)
+}
+
+func (g *Game) UpdateDetection() {
+	x, y := ebiten.CursorPosition()
+
+	if g.reduckycol*duckyWidth <= x && x <= (g.reduckycol+1)*duckyWidth &&
+		g.reduckyrow*duckyHeight <= y && y <= (g.reduckyrow+1)*duckyHeight && !g.toast {
+		g.spottedticks++
+		g.spotted = true
+		fmt.Println("ducky spotted!")
+	} else {
+		g.spotted = false
+	}
+
+	if g.spottedticks > spotResetDuration {
+		g.toast = true
+	}
+
+	if g.toast {
+		g.UpdateSliders()
+		g.toastcounter++
+	}
+
+	if g.toastcounter > toastCount {
+		g.Reset()
+	}
+
+}
+
+func (g *Game) UpdateSliders() {
+	for _, s := range g.sliders {
+		s.Update()
+	}
+}
diff --git a/gamedata/gamedata.go b/gamedata/gamedata.go
new file mode 100644
index 0000000..208f25e
--- /dev/null
+++ b/gamedata/gamedata.go
@@ -0,0 +1,6 @@
+package gamedata
+
+type Coordinates struct {
+	X float64
+	Y float64
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..ade4c26
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,26 @@
+module ducky
+
+go 1.22.0
+
+toolchain go1.22.10
+
+require (
+	github.com/hajimehoshi/ebiten/v2 v2.8.5
+	golang.org/x/exp v0.0.0-20241204233417-43b7b7cde48d
+)
+
+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/go-text/typesetting v0.2.0 // indirect
+	github.com/hajimehoshi/go-mp3 v0.3.4 // indirect
+	github.com/jezek/xgb v1.1.1 // indirect
+	github.com/jfreymuth/oggvorbis v1.0.5 // indirect
+	github.com/jfreymuth/vorbis v1.0.2 // indirect
+	golang.org/x/image v0.20.0 // indirect
+	golang.org/x/sync v0.10.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
+)
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..53e06aa
--- /dev/null
+++ b/main.go
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"ducky/game"
+	"fmt"
+	"log"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+func main() {
+	ver := 0.04
+	verstring := fmt.Sprintf("ducky v%.2f", ver)
+
+	game := &game.Game{}
+
+	ebiten.SetWindowSize(640*1.5, 480*1.5)
+	ebiten.SetWindowTitle(verstring)
+
+	if err := ebiten.RunGame(game); err != nil {
+		log.Fatal(err)
+	}
+}