Button Sequence Input

[arichman1257]

Is there a relatively simple way, with WPILib or without, to make the code be able to detect an input of a sequence of buttons as oppose to holding them all down? Like a cheat code.

For example, if the driver entered the sequence A B X Y on an xbox controller some LEDs would flash. This mean that they are only pressing one at a time but in sequence.

[cgmv123]

int state = 0;

while{
if buttonA && state == 0
state ++;

if buttonB && state == 1
state ++;

if buttonX && state == 2
state++;

if buttonY && state == 3
state ++;

if buttonBack
state = 0;

if state == 4
{action
state = 0;
}

This is Java-focused pseudocode, but it should be enough to get you started.

[Ether]

int state = 0;

while{
if buttonA && state == 0
state ++;

if buttonB && state == 1
state ++;

if buttonX && state == 2
state++;

if buttonY && state == 3
state ++;

if buttonBack
state = 0;

if state == 4
{action
state = 0;
}

This is Java-focused pseudocode, but it should be enough to get you started.

Shouldn't the state be reset to 0 if a button not in the A B X Y sequence is pressed?

As the code stands, the sequence A B Z X Y would be accepted.