RAYgbiv

// Rename our pins from numbers to readable variables
#define RED RED_LED
#define GREEN GREEN_LED
#define BLUE BLUE_LED
#define TILT 24

// Define delay time (ms)
#define delayTime 10 

// The values of each color
int redVal;
int greenVal;
int blueVal;
int color = 255;

// Button Use
const int buttonPin1 = PUSH1;
const int buttonPin2 = PUSH2;
int buttonState1 = 0; 
int buttonState2 = 0;
int tiltSwitch = 0;


void setup() {
  // Set up pins
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  // Set up button for input
  pinMode(buttonPin1, INPUT_PULLUP);
  pinMode(buttonPin2, INPUT_PULLUP);
  pinMode(TILT, INPUT);
  delay(10);
}

void dimRED(){
  //read state of tilt switch
  tiltSwitch = digitalRead(TILT);
  //dims the red RGB value
  while(tiltSwitch){
    analogWrite(RED, LOW);
    tiltSwitch = digitalRead(TILT);
  }
  //resets if not tilted
  analogWrite(RED, redVal);
}

void dimBLUE(){
  //read state of tilt switch
  tiltSwitch = digitalRead(TILT);
  //dims the blue RGB value
  while(tiltSwitch){
    analogWrite(BLUE, LOW);
    tiltSwitch = digitalRead(TILT);
  }
  //resets if not tilted
  analogWrite(BLUE, blueVal);
}


void loop() {
  //read state of button
  buttonState1 = digitalRead(buttonPin1);
  buttonState2 = digitalRead(buttonPin2);
  if(buttonState1 == LOW || buttonState2 == LOW){
    redVal = 255;
    blueVal = 0;
    greenVal = 0;
    /* Fade from red to orange */
    for(int i = 0; i < 85; i++ ){
      greenVal += 1;
      redVal -= 1;
      analogWrite(RED, redVal); // set the new red value
      analogWrite(GREEN, greenVal); // set the new green value
      delay(delayTime); // wait for how long delay time is
      if(buttonState1 == LOW) {
        dimRED();
      }
      if(buttonState2 == LOW) {
        dimBLUE();
      }
    }

    /* Fade from orange to yellow */
    for(int i = 0; i < 85; i++){
      greenVal += 1;
      analogWrite(GREEN, greenVal); // set the new green value
      delay(delayTime); // wait for how long delay time is
      if(buttonState1 == LOW) {
        dimRED();
      }
      if(buttonState2 == LOW) {
        dimBLUE();
      }
    }

    /* Fade from yellow to green */
    for(int i = 0 ; i < 85; i++){
      redVal -= 2;
      greenVal += 1;
      analogWrite(RED, redVal); // set the new red value
      analogWrite(GREEN, greenVal); // set the new blue value
      delay(delayTime); // wait for how long delay time is
      if(buttonState1 == LOW) {
        dimRED();
      }
      if(buttonState2 == LOW) {
        dimBLUE();
      }
    }

    /* Fade from green to aqua to blue */
    for(int i = 0 ; i < 255; i++){
      greenVal -= 1;
      blueVal += 1;
      analogWrite(GREEN, greenVal); // set the new red value
      analogWrite(BLUE, blueVal); // set the new blue value
      delay(delayTime); // wait for how long delay time is
      if(buttonState1 == LOW) {
        dimRED();
      }
      if(buttonState2 == LOW) {
        dimBLUE();
      }
    }
  
    /* Fade from blue to purple to pink to red */
    for(int i = 0 ; i < 255; i++){
      redVal += 1;
      blueVal -= 1;
      analogWrite(RED, redVal); // set the new red value
      analogWrite(BLUE, blueVal); // set the new blue value
      delay(delayTime); // wait for how long delay time is
      if(buttonState1 == LOW) {
        dimRED();
      }
      if(buttonState2 == LOW) {
        dimBLUE();
      }
    }
  }
  else {
    //if button not pressed, turn LED off
    digitalWrite(RED, LOW);
    digitalWrite(GREEN, LOW);
    digitalWrite(BLUE, LOW);
  }
}