generate-sequence
wayland/generate-sequence/generate-sequence
Generate a linear sequence of numbers.
generate-sequence
@/generate-sequence
Generate a linear sequence of numbers.
Startnumber
Sequence start value.
Stopnumber
Sequence end value. Should be greater than start value.
Stepnumber
Step size. Should be greater than zero.
UPDpulse
Update. Begin generation of sequence.
Donepulse
Pulse when last number in sequence has been output.
Nextpulse
Pulse each time a new number in the sequence is generated.
Nnumber
Number in sequence.
C++ implementation
node {
// Internal state variables defined at this level persists across evaluations
Number n;
Number start;
Number stop;
Number step;
bool update;
void evaluate(Context ctx) {
if(isInputDirty<input_UPD>(ctx)) {
start = getValue<input_Start>(ctx);
stop = getValue<input_Stop>(ctx);
step = getValue<input_Step>(ctx);
n = start;
update = true;
}
if (update) {
if (n <= stop) {
emitValue<output_N>(ctx, n);
emitValue<output_Next>(ctx, 1);
n += step;
setImmediate();
}
else
{
update = false;
emitValue<output_Done>(ctx, 1);
}
}
}
}