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package generator
import (
"encoding/json"
"html/template"
)
// themeSounds is serialized into each page for Web Audio (splash + keyboard nav).
// Wave: "sine" | "triangle" | "square".
type themeSounds struct {
Splash struct {
Freqs []float64 `json:"freqs"`
Spacing float64 `json:"spacing"`
Gain float64 `json:"gain"`
Wave string `json:"wave"`
} `json:"splash"`
Nav struct {
Freq float64 `json:"freq"`
Wave string `json:"wave"`
Dur float64 `json:"dur"`
Gain float64 `json:"gain"`
} `json:"nav"`
Open struct {
Wave string `json:"wave"`
Start float64 `json:"start"`
End float64 `json:"end"`
Dur float64 `json:"dur"`
Gain float64 `json:"gain"`
} `json:"open"`
Close struct {
Wave string `json:"wave"`
Start float64 `json:"start"`
End float64 `json:"end"`
Dur float64 `json:"dur"`
Gain float64 `json:"gain"`
} `json:"close"`
}
// themeSoundPresets maps CLI theme names to synth parameters (see themes.go registry).
var themeSoundPresets = map[string]themeSounds{
"neon": soundsNeon(),
"terminal": soundsTerminal(),
"synthwave": soundsSynthwave(),
"plasma": soundsPlasma(),
"brutalist": soundsBrutalist(),
"volcano": soundsVolcano(),
"aurora": soundsAurora(),
"matrix": soundsMatrix(),
"ocean": soundsOcean(),
"dos": soundsDos(),
"retro": soundsRetro(),
"cosmos": soundsCosmos(),
"retrofuture": soundsRetrofuture(),
"spaceage": soundsSpaceage(),
"tropicale": soundsTropical(),
}
func soundsNeon() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{523.25, 659.25, 783.99, 1046.5}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.055, 0.09, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 330, "square", 0.055, 0.11
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "triangle", 523.25, 1046.5, 0.13, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 880, 261.63, 0.16, 0.09
return s
}
func soundsTerminal() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{523.25, 659.25, 783.99}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.09, 0.11, "square"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 800, "square", 0.045, 0.12
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "square", 600, 1200, 0.12, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "square", 900, 400, 0.14, 0.09
return s
}
func soundsSynthwave() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{196, 246.94, 293.66, 349.23}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.1, 0.1, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 164.81, "triangle", 0.09, 0.1
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 220, 440, 0.18, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 440, 110, 0.17, 0.09
return s
}
func soundsPlasma() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{311.13, 415.3, 466.16, 622.25}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.08, 0.095, "triangle"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 246.94, "sine", 0.085, 0.11
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "triangle", 349.23, 698.46, 0.15, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 523.25, 174.61, 0.17, 0.09
return s
}
func soundsBrutalist() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{100, 150, 200, 120}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.07, 0.14, "square"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 120, "square", 0.07, 0.13
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "square", 200, 400, 0.12, 0.11
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "square", 400, 100, 0.14, 0.1
return s
}
func soundsVolcano() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{196, 246.94, 293.66, 349.23}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.08, 0.1, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 180, "sine", 0.09, 0.11
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "triangle", 261.63, 523.25, 0.16, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 392, 98, 0.17, 0.09
return s
}
func soundsAurora() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{659.25, 880, 987.77, 1046.5}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.07, 0.085, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 440, "sine", 0.1, 0.09
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 523.25, 880, 0.2, 0.09
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 704, 352, 0.18, 0.085
return s
}
func soundsMatrix() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{523.25, 587.33, 659.25, 698.46}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.05, 0.09, "square"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 523.25, "square", 0.045, 0.11
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "square", 880, 1318.5, 0.11, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "square", 880, 330, 0.13, 0.09
return s
}
func soundsOcean() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{174.61, 196, 220, 246.94}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.095, 0.095, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 196, "triangle", 0.1, 0.09
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 349.23, 523.25, 0.2, 0.09
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 415.3, 246.94, 0.18, 0.085
return s
}
func soundsDos() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{800, 1000}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.08, 0.12, "square"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 1000, "square", 0.03, 0.1
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "square", 400, 800, 0.1, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "square", 800, 200, 0.1, 0.09
return s
}
func soundsRetro() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{1046.5, 1318.5}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.12, 0.1, "square"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 1200, "square", 0.04, 0.11
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "square", 800, 1600, 0.14, 0.1
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "square", 1600, 400, 0.15, 0.09
return s
}
func soundsCosmos() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{220, 277.18, 329.63, 392}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.09, 0.09, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 277.18, "sine", 0.09, 0.09
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "triangle", 392, 587.33, 0.22, 0.09
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 587.33, 196, 0.2, 0.085
return s
}
func soundsRetrofuture() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{196, 246.94, 329.63, 440}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.085, 0.095, "triangle"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 277.18, "triangle", 0.085, 0.1
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 330, 523.25, 0.18, 0.09
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 415.3, 165, 0.17, 0.085
return s
}
// soundsSpaceage returns synth parameters for the Space Age theme.
// Clean teal-toned tones evoke retro-futuristic space-age electronics.
func soundsSpaceage() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{440, 554.37, 659.25, 880}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.07, 0.085, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 554.37, "triangle", 0.075, 0.09
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 440, 880, 0.18, 0.09
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 659.25, 330, 0.17, 0.085
return s
}
// soundsTropical returns synth parameters for the Tropical Beach theme.
// Warm sine arpeggio across a C-major pentatonic — steel drum impression on splash.
// Nav uses a breathy mid-freq sine "bird tone"; open/close sweep like breaking surf.
func soundsTropical() themeSounds {
var s themeSounds
s.Splash.Freqs = []float64{523.25, 659.25, 783.99, 1046.5}
s.Splash.Spacing, s.Splash.Gain, s.Splash.Wave = 0.085, 0.08, "sine"
s.Nav.Freq, s.Nav.Wave, s.Nav.Dur, s.Nav.Gain = 880, "sine", 0.07, 0.07
s.Open.Wave, s.Open.Start, s.Open.End, s.Open.Dur, s.Open.Gain = "sine", 440, 880, 0.18, 0.08
s.Close.Wave, s.Close.Start, s.Close.End, s.Close.Dur, s.Close.Gain = "sine", 660, 330, 0.17, 0.075
return s
}
func defaultSounds() themeSounds {
return soundsNeon()
}
// themeSoundsJSON returns a JS object literal for embedding in <script> (safe JSON).
func themeSoundsJSON(themeName string) template.JS {
p := defaultSounds()
if x, ok := themeSoundPresets[themeName]; ok {
p = x
}
b, err := json.Marshal(p)
if err != nil {
b, _ = json.Marshal(defaultSounds())
}
return template.JS(b) //nolint:gosec // JSON from fixed structs
}
|
