1.2 KiB
1.2 KiB
Point
Find whether the LED you say on the LED screen is on or off.
led.point(0,0);
Parameters
xis a number that means the horizontal spot on the LED screen (from left to right: 0, 1, 2, 3, or 4)yis a number that means the vertical spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
If a parameter is out of bounds (a value
other than 0 to 4), this function will return false.
Returns
- a boolean. If it is
true, that means the LED is on. If it isfalse, that means the LED is off.
~hint
The LED screen is a solid square of LEDs with five LEDs on each side.
To learn more about how you number the LEDs with x and y
coordinates, see LED screen.
~
Example: Toggle off
This program turns the center LED (2, 2) off if it is already on. (If it is already off, this program leaves it off.)
if (led.point(2, 2)) {
led.unplot(2, 2)
}