matrix clear
clear an area of the 8x8 button matrix on a 'novation launchpad'
Inlets
bool32.rising clear
int32 start
int32 length
Outlets
None
Parameters
int32 length of the area to display
int32 display start on the LP
Attributes
combo device
Declaration
int ntrig;
uint8_t map[64];
int i;
int length;
Init
{
int i;
for (i = 0; i < 64; i++)
map[i] = (((i >> 3) << 3) + i);
}
i = 666;
Control Rate
length = ((inlet_length + param_length + inlet_start + param_start) > 64)
? 64
: (inlet_length + param_length);
// clear
if ((inlet_clear > 0) && !ntrig) {
ntrig = 1;
i = 0;
}
if (i < length) {
MidiSend3((midi_device_t)attr_device, MIDI_NOTE_ON,
map[(i + (inlet_start + param_start))], 0);
i += 1;
} else
i = 666;
if (!(inlet_clear > 0))
ntrig = 0;