Multiple push-button input control

Projects General Guidance
1

Hey guys, first time poster but I've gotten a lot of help from these boards so thanks to anyone who has posted.

I'm looking for some help with an issue I haven't seen addressed anywhere here.

I have a project where I have multiple push-button inputs to an Arduino, where each controls it's own colored LED (mapped digital-in to digital-pwm-out). Currently I have a working project where each switch turns the LED on/off. My problem is that I need a way to turn all of the other LEDs off when one of the push-button switches is pressed (i.e. only one color will be running at a time). This is giving me issues because pressing a second switch obviously will not physically turn the first switch off, and as this is for a young woman with cerebral palsy, I can not depend on her to switch it off herself. I tried just using a simple if/else solution, but that did not work at all, and I'm giving myself a headache trying to think of an effective way to do this.

I'm open to either component or programming solutions. Thanks a ton in advance!

2

Are these momentary push buttons? Wired to connect a pin to Gnd when pressed, with the input pins using the internal pullup resistors?

void loop(){
if (digitalRead(button1) == LOW){
analogWrite(pin3, 127);
analogWrite (pin5, 0);
analogWrite (pin6, 0);
analogWrite (pin9, 0);
analogWrite (pin10, 0);
analogWrite (pin11, 0);
delay(1000);
}
if (digitalRead(button2) == LOW){
analogWrite(pin3, 0);
analogWrite (pin5, 127);
analogWrite (pin6, 0);
analogWrite (pin9, 0);
analogWrite (pin10, 0);
analogWrite (pin11, 0);
delay(1000);
}
if (digitalRead(button3) == LOW){
analogWrite(pin3, 0);
analogWrite (pin5, 0);
analogWrite (pin6, 127);
analogWrite (pin9, 0);
analogWrite (pin10, 0);
analogWrite (pin11, 0);
delay(1000);
}

if (digitalRead(button4) == LOW){
analogWrite(pin3, 0);
analogWrite (pin5, 0);
analogWrite (pin6, 0);
analogWrite (pin9, 127);
analogWrite (pin10, 0);
analogWrite (pin11, 0);
delay(1000);
}

if (digitalRead(button5) == LOW){
analogWrite(pin3, 0);
analogWrite (pin5, 0);
analogWrite (pin6, 0);
analogWrite (pin9, 0);
analogWrite (pin10, 127);
analogWrite (pin11, 0);
delay(1000);
}

if (digitalRead(button6) == LOW){
analogWrite(pin3, 0);
analogWrite (pin5, 0);
analogWrite (pin6, 0);
analogWrite (pin9, 0);
analogWrite (pin10, 0);
analogWrite (pin11, 127);
delay(1000);
}
}// end loop