Integration of Code Parts

//FLIPPER VARIABLES
int LsolenoidPin = 6;     // pin for left solenoid
int LbuttonPin = 2;       //pin for the left flipper button
bool pushed = LOW;        //value of button pin when the flipper button is pushed
bool firstLoop = true;

                          // these are global variables that counts the initial time the flipper button has been pushed
int LFlipperTimer = 0;
int RFlipperTimer = 0;


int actuationValue = 255; //voltage needed to actuate the flipper
int actuationTime = 1000;      //length of time the flipper is actuated for




//ROLLOVER VARIABLES
int ptTally = 0;          // total point tally
int Rollover100val = 4;   //pin number for the rollover that gives a point addition of 100





//LIGHT VARIABLES
int LED1 = A5;            //pin numbers for LEDS
int LED2 = A4;
int LED3 = A3;
bool lightMode = false;   //initialise the lights as not flashing              SHOULD THIS BE DONE IN SETUP INSTEAD????
int lightTimer = 0;       //variable that counts the initial time the lights went on
int lightFlashTime = 250;// how long the lights are on for
int lightIndex = 1; //says whether it is the first time we are in the light loop








void setup() {
  //SETUP FLIPPERS
  
  //establish whether the pin for the solenoid and button are an input or an output
  pinMode(LsolenoidPin, OUTPUT);
  pinMode(LbuttonPin, INPUT);
  //ensure the solenoids start off w/ no voltage
  analogWrite(LsolenoidPin, 0);

  /*//Right version of above
    pinMode(RsolenoidPin,OUTPUT);
    pinMode(RbuttonPin, INPUT);
    analogWrite(RsolenoidPin, 0);
  */


  //SETUP ROLLOVERS
  //establish input vs output for the pins
  pinMode(Rollover100val, INPUT);



  //SETUP LIGHTS
  //establish input vs output for the pins
  pinMode(LED1,OUTPUT);
  pinMode(LED2,OUTPUT);
  pinMode(LED3,OUTPUT);

  //make sure all the lights are off initially
  digitalWrite(LED1,LOW);
  digitalWrite(LED2,LOW);
  digitalWrite(LED3,LOW);




  

  Serial.begin(9600);                                       //WHAT DOES THIS MEAN
  Serial.println("Program Started");
}





void loop() {
  //Serial.println(LFlipperTimer);
  
  // if left flipper is pushed or has been pushed in the past (so the timer is running) call the actuate flipper command for the left flipper
  if (digitalRead(LbuttonPin) == pushed || LFlipperTimer != 0) {
    LFlipperTimer = actuateFlipper(LsolenoidPin, LbuttonPin, LFlipperTimer);
  }


  // if right flipper is pushed call the actuate flipper command for the right flipper
  /*if(digitalRead(RbuttonPin) == pushed){
     actuateFlipper(RsolenoidPin,RbuttonPin, RFlipperTimer);
    }*/
  

  //when the 100 pt rollover is hit, add pts
  if (digitalRead(Rollover100val) == pushed) {
    addPts(100);
  }

  //display the point tally


  //display fun things


  //turn LED Underground on


  //EM coil


  //timing belt

  if(ptTally > 10000 && ptTally < 20000) {
    lightMode = true;
  }

  if(ptTally > 20000) {
    lightMode = false;
  }

  //go into flashing light mode
  if(lightMode == true) {
    lightsGo();
  }

  
  //come out of flashing light mode
  if(lightMode == false) {
    digitalWrite(LED1,LOW);
    digitalWrite(LED2,LOW);
    digitalWrite(LED3,LOW);
  }
}



//add points to the total point tally
void addPts(int ptNum)  {
  ptTally = ptTally + ptNum;
  Serial.println(ptTally);
}




void lightsGo() {
  if(lightIndex == 1){
    lightTimer = millis();
    lightIndex = 0;
  }
  //for lightFlashTime amount of milliseconds have the first LED on
  if(millis() <= lightTimer + lightFlashTime){
    digitalWrite(LED1,HIGH);
    digitalWrite(LED2,LOW);
    digitalWrite(LED3,LOW);
  }
  
  //for lightFlashTime amount of milliseconds have the second LED on - after 1st has been on
  if(millis() > lightTimer + lightFlashTime && millis() <= lightTimer + 2*lightFlashTime){
    digitalWrite(LED1,LOW);
    digitalWrite(LED2,HIGH);
    digitalWrite(LED3,LOW);
  }


  //for lightFlashTime amount of milliseconds have the second LED on - after 2nd has been on
  if(millis() > lightTimer + 2*lightFlashTime && millis() <= lightTimer + 3*lightFlashTime){
    digitalWrite(LED1,LOW);
    digitalWrite(LED2,LOW);
    digitalWrite(LED3,HIGH);
  }

  //reinitialise current time so that I don't have to do modulo
  if(millis() > lightTimer + 3*lightFlashTime) {
    lightTimer = millis();
    lightIndex = 1;
  }
}



int actuateFlipper(int solenoidPin, int buttonPin, int flipperTimer) {
  //Serial.println(digitalRead(buttonPin));
  //turn the solenoid onto actuation "high volt" value
  // to stop it from actuating each time, make sure this is the first instance of the button being in the state pushed
  if (firstLoop == true) {
    //Serial.println("a");
    //to start the actuation, put the voltage up to actuation val
    analogWrite(solenoidPin, actuationValue);
    //start time                                                          MAKE SURE THIS IS CHANGING THE GLOBAL VARIABLE
    flipperTimer = millis();
    firstLoop = false;
  }


  //if the flipper button is no longer pushed make voltage back to zero and reinitialise the flipper timer
  if (digitalRead(buttonPin) != pushed) {
    //Serial.println("b");
    // drop voltage to zero
    analogWrite(solenoidPin, 0);
    //reinitialise flipper timer
    flipperTimer = 0;
    firstLoop = true;
  }

  //immediately drop to "low volt" value while the solenoid is still being held
  if (digitalRead(buttonPin) == pushed && millis() >= flipperTimer + actuationTime) {
    //Serial.println("c");
    //drop to low volt value in solenoid
    analogWrite(solenoidPin, 100);
    delay(10);                        //idk why i have to have this, else the value must fluctuate - try removing once soldered
  }
  
 return flipperTimer;
  
}