void SendMessages(Drums newState, XInput.GamepadEx state)
{
if (device == null)
{
return;
}
var channel = Midi.Enums.Channel.Channel10;
foreach (Drums d in Enum.GetValues(typeof(Drums)))
{
var note = DrumNoteMap[d];
if (newState.HasFlag(d) && !drumState.HasFlag(d))
{
var velocity = VelocityFunctions[d](state);
if (velocity > 127)
{
velocity = 127;
}
if (velocity < 32)
{
velocity = 32;
}
device.SendNoteOn(channel, (Midi.Enums.Pitch)note, velocity);
}
else if (!newState.HasFlag(d) && drumState.HasFlag(d))
{
device.SendNoteOff(channel, (Midi.Enums.Pitch)note, 0);
}
}
}
private void Mon_OnStateChanged(XInput.GamepadEx state)
{
var drums = HitDrums(state.wButtons);
SendMessages(drums, state);
drumState = drums;
}
private void Mon_OnStateChanged(XInput.GamepadEx state)
{
var(keys, sustain, velocities) = GamepadToKeyState(state);
if (state.wButtons.HasFlag(XInput.Buttons.DPAD_LEFT))
{
offset = Math.Max(offset - 12, 0);
baseNoteLabel.Text = Enum.GetName(typeof(Midi.Enums.Pitch), (Midi.Enums.Pitch)offset);
}
else if (state.wButtons.HasFlag(XInput.Buttons.DPAD_RIGHT))
{
offset = Math.Min(offset + 12, 127);
baseNoteLabel.Text = Enum.GetName(typeof(Midi.Enums.Pitch), (Midi.Enums.Pitch)offset);
}
SendMessages(keys, sustain, velocities);
sustainState = sustain;
}
public static (bool[] keys, bool sustain, byte[] velocities) GamepadToKeyState(XInput.GamepadEx state)
{
bool sustain = (state.sThumbRY & 0x80) == 0x80;
var velocities = new byte[] {
(byte)(state.sThumbLX >> 8 & 0x7F),
(byte)(state.sThumbLY & 0x7F),
(byte)(state.sThumbLY >> 8 & 0x7F),
(byte)(state.sThumbRX & 0x7F),
(byte)(state.sThumbRX >> 8 & 0x7F),
};
var keys = new bool[25];
int appended =
(state.bLeftTrigger << 17) |
(state.bRightTrigger << 9) |
((state.sThumbLX & 0xFF) << 1) |
((state.sThumbLX >> 15) & 0x1);
int test = 1 << 24;
int key = 0;
for (var i = 0; i < 25; i++)
{
int mask = test >> i;
keys[key++] = (appended & mask) == mask;
}
#if DEBUG
Console.WriteLine(
$"Keys: {Convert.ToString(appended, 2).PadLeft(25, '0')} " +
$"Sustain: {(sustain ? 1 : 0)} " +
$"Velocities: {velocities.Select(x => x.ToString().PadLeft(3)).Aggregate((x, y) => x + " " + y)} " +
$"State: {(int)state.wButtons:X4}");
#endif
return(keys, sustain, velocities);
}
