func updateZoom(dt float32) {
z := zoomAmount + zoomRate*dt
if z > 1 {
z = 1
if zoomAmount < 1 {
// Have reached full zoom. Enable birthing of Frequons.
if currentMode == modeGame {
universe.SetNLiveMax(1)
} else if benchmarking {
universe.SetNLiveMax(8)
} else {
universe.SetNLiveMax(maxFrequon.Value)
}
}
} else if z < 0 {
z = 0
}
zoomAmount = z
if z != 0 {
const min, max = 1., 16.
zoomCompression = min / (min + (max-min)*(1-z))
} else {
fourierIsVisible = false
endGame()
}
}
// Set zoom rate. Argument should be zoomGrow or zoomShrink for normal speed.
func setZoom(dir float32) {
zoomRate = dir
if benchmarking {
// Accelerate zoom
zoomRate *= 20
}
if dir > 0 {
zoomAmount = 0
// Disable birthing of Frequons until zoom completes.
universe.SetNLiveMax(0)
} else {
// Use current zoomAmount
}
}
func setMode(m mode) {
fourierIsVisible = false
fallIsVisible = false
radarIsVisible = false
scoreIsVisible = false
dividerCount = 0
switch m {
case modeSplash:
teletype.PrintUpper(title + "\n")
teletype.PrintUpper(edition + "\n")
teletype.PrintUpper("By Arch D. Robison\n")
var err error
records, err = vanity.ReadFromFile()
if err != nil {
if devConfig {
teletype.Print(err.Error())
}
}
case modeName:
teletype.Reset()
teletype.PrintUpper(grammar.GenerateWithNumber(rune('H'), universe.NKill()) + "\n")
teletype.PrintUpper("Please enter your name:\n")
teletype.DisplayCursor(true)
case modeTraining, modeGame:
universe.BeginGame(m == modeTraining)
// Temporarily set NLiveMax to 0. End of boot sequence will set it to 1.
universe.SetNLiveMax(0)
startBootSequence()
case modeVanity:
teletype.Reset()
teletype.DisplayCursor(false)
teletype.PrintUpper("Supreme Freqs\n\nScore Player\n")
for _, r := range records {
teletype.PrintUpper(fmt.Sprintf("%5d %s\n", r.Score, r.Name))
}
}
currentMode = m
setMenus(m)
}
teletype.PrintUpper(fmt.Sprintf("HFT SPEED = %.1f GFlops\n", fourier.Benchmark()*1E-9))
})
)
// State of stationary/moving radio buttons on the "Invaders" menu.
var letFrequonsMove = menu.RadioState{OnSelect: func(value int) {
if value == 0 {
universe.SetVelocityMax(0)
} else {
universe.SetVelocityMax(30. / 1440. * math32.Sqrt(float32(screenWidth*screenHeight)))
}
}}
// State of "maximum number of Frequons" buttons on the "Invaders" menu.
var maxFrequon = menu.RadioState{Value: 1, OnSelect: func(value int) {
universe.SetNLiveMax(value)
}}
// Entry for "Color" menu
type colorSchemeItem struct {
name string // Name of scheme
missing coloring.SchemeBits // Aspect that is missing from the color scheme
}
var colorSchemeInfo = []colorSchemeItem{
{"Complex", 0},
{"Real", coloring.ImagBit},
{"Imaginary", coloring.RealBit},
{"Magnitude", coloring.PhaseBit},
{"Phase", coloring.MagnitudeBit},
}