func main() {
devices, err := midi.GetDevices()
check(err)
launchpad := controller.NewLaunchpad(devices["Launchpad"], map[int]int{})
launchpad.ButtonPressColor = controller.RedLow
launchpad.MomentaryButtons = false
launchpad.Open()
go launchpad.Run()
sampler, err := audio.NewLoadedSampler("config/launchpad_sequencer.json")
sampler.Run()
time.Sleep(1 * time.Second)
activeButtons := make(map[int]bool)
for i := 0; i < 8; i++ {
for j := i * 16; j < (i*16 + 8); j++ {
activeButtons[j] = false
}
}
go func() {
for {
select {
case note := <-launchpad.OutPort().NoteOns():
activeButtons[note.Key] = !activeButtons[note.Key] // toggle state
launchpad.ToggleLightColor(note.Key, controller.RedLow, controller.Black)
case <-launchpad.OutPort().NoteOffs():
continue
case <-launchpad.OutPort().ControlChanges():
continue
}
}
}()
for {
for i := 0; i < 8; i++ {
startButton := i
endButton := startButton + (8 * 16)
for j := startButton; j < endButton; j += 16 {
if activeButtons[j] {
launchpad.LightOn(j, controller.Red) // On color
column, _ := launchpad.XY(j)
sampler.Play(column, 0.7)
} else {
launchpad.LightOn(j, controller.Green) // Off color
}
}
time.Sleep(250 * time.Millisecond)
for j := startButton; j < endButton; j += 16 {
if activeButtons[j] {
launchpad.LightOn(j, controller.RedLow)
} else {
launchpad.LightOff(j)
}
}
}
}
}
func NewAudioGenerator(filepath string) (*AudioGenerator, error) {
a := AudioGenerator{}
if s, err := audio.NewLoadedSampler(filepath); err != nil {
return &AudioGenerator{}, err
} else {
a.Sampler = s
}
return &a, nil
}
func main() {
nanopad, _ := midi.GetDevice("nanoPAD PAD")
sampler, _ := audio.NewLoadedSampler(configPath)
for {
msg := <-nanopad.OutPort()
if msg.(type) == midi.NoteOn {
go sampler.Play(msg.Key, volume)
}
}
}
func main() {
configPath := "/home/tasm/ir/src/tracker/cmd/config/waves.json"
sampler, err := audio.NewLoadedSampler(configPath)
g := tracker.MockGenerator{}
p := tracker.PatternTable{
tracker.Pattern{
tracker.NewTrack(g, 127, []int{64, 60, 67}),
tracker.NewTrack(g, 127, []int{52, 48, 55}),
tracker.NewTrack(g, 127, []int{40, 36, 42}),
},
}
t := tracker.Tracker{BPM: 120, PatternTable: p}
t.Play()
}
func main() {
devices, err := midi.GetDevices()
check(err)
launchpad := midi.NewLaunchpad(devices["Launchpad"], make(map[int]int))
launchpad.Open()
go launchpad.Run()
sampler, err := audio.NewLoadedSampler("instruments/config/launchpad_drums.json")
sampler.Run()
check(err)
for {
select {
case note := <-launchpad.OutPort().NoteOns():
go sampler.Play(note.Key, 0.3)
case <-launchpad.OutPort().NoteOffs():
continue
case <-launchpad.OutPort().ControlChanges():
continue
}
}
launchpad.Close()
sampler.Stop()
sampler.Close()
}