148 lines
2.9 KiB
Go
148 lines
2.9 KiB
Go
package asset
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import (
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"bytes"
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"embed"
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"image"
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"image/color"
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_ "image/png"
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"io"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/audio"
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"github.com/hajimehoshi/ebiten/v2/audio/vorbis"
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"github.com/hajimehoshi/ebiten/v2/audio/wav"
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)
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const sampleRate = 44100
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//go:embed image map sound
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var FS embed.FS
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var ImgWhiteSquare = ebiten.NewImage(8, 8)
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var ImgBlackSquare = ebiten.NewImage(8, 8)
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var (
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ImgTitle1 = LoadImage("image/title1.png")
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ImgTitle2 = LoadImage("image/title2.png")
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ImgTitle3 = LoadImage("image/title3.png")
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ImgBat = LoadImage("image/bat.png")
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ImgBatBroken1 = LoadImage("image/bat_broken1.png")
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ImgBatBroken2 = LoadImage("image/bat_broken2.png")
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ImgSnowflake = LoadImage("image/snowflake.png")
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)
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var (
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SoundBatHit1 *audio.Player
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SoundBatHit2 *audio.Player
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SoundBatHit3 *audio.Player
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SoundBatHit4 *audio.Player
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SoundCreepDie *audio.Player
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SoundTitleMusic *audio.Player
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SoundLevelMusic *audio.Player
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)
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func init() {
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ImgWhiteSquare.Fill(color.White)
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ImgBlackSquare.Fill(color.Black)
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}
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func LoadSounds(ctx *audio.Context) {
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SoundBatHit1 = LoadWAV(ctx, "sound/bat_hit/hit1.wav")
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SoundBatHit2 = LoadWAV(ctx, "sound/bat_hit/hit2.wav")
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SoundBatHit3 = LoadWAV(ctx, "sound/bat_hit/hit3.wav")
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SoundBatHit4 = LoadWAV(ctx, "sound/bonk.wav")
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SoundCreepDie = LoadOGG(ctx, "sound/creep_die/creep_die.ogg", false)
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SoundTitleMusic = LoadOGG(ctx, "sound/title_music.ogg", true)
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SoundTitleMusic.SetVolume(0.5)
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SoundLevelMusic = LoadOGG(ctx, "sound/level_music.ogg", true)
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SoundLevelMusic.SetVolume(0.4)
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}
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func LoadImage(p string) *ebiten.Image {
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f, err := FS.Open(p)
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if err != nil {
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panic(err)
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}
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defer f.Close()
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baseImg, _, err := image.Decode(f)
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if err != nil {
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panic(err)
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}
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return ebiten.NewImageFromImage(baseImg)
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}
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func LoadBytes(p string) []byte {
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b, err := FS.ReadFile(p)
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if err != nil {
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panic(err)
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}
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return b
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}
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func LoadWAV(context *audio.Context, p string) *audio.Player {
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f, err := FS.Open(p)
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if err != nil {
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panic(err)
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}
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defer f.Close()
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stream, err := wav.DecodeWithSampleRate(sampleRate, f)
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if err != nil {
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panic(err)
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}
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player, err := context.NewPlayer(stream)
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if err != nil {
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panic(err)
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}
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// Workaround to prevent delays when playing for the first time.
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player.SetVolume(0)
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player.Play()
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player.Pause()
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player.Rewind()
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player.SetVolume(1)
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return player
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}
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func LoadOGG(context *audio.Context, p string, loop bool) *audio.Player {
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b := LoadBytes(p)
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stream, err := vorbis.DecodeWithSampleRate(sampleRate, bytes.NewReader(b))
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if err != nil {
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panic(err)
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}
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var s io.Reader
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if loop {
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s = audio.NewInfiniteLoop(stream, stream.Length())
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} else {
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s = stream
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}
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player, err := context.NewPlayer(s)
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if err != nil {
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panic(err)
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}
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// Workaround to prevent delays when playing for the first time.
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player.SetVolume(0)
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player.Play()
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player.Pause()
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player.Rewind()
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player.SetVolume(1)
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return player
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}
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