/*
11/21/16
This is an adaption of the RobotGeek sketch "Contolling a Solenoid
with Arduino" and the RobotGeek LCD sketch "Hello World"

http://learn.robotgeek.com/demo-code/124-arduino-solenoid-tutorial-button-demo.html
http://learn.robotgeek.com/getting-started/30-dev-kits/57-robotgeek-i2c-lcd-getting-started-guide.html#examples

*/


 #include <Wire.h>
 #include <RobotGeekLCD.h>
 RobotGeekLCD lcd;


// constants won't change. They're used here to set pin numbers:
const int button0Pin = 2;     // left flipper button
const int button1Pin = 3;     // right flipper button
const int button2Pin = 4;     // shooter flipper button

const int trigger1Pin = 0;   // left target trigger analog pin 0
const int trigger2Pin = 1;   // center left target trigger analog pin 1
const int trigger3Pin = 2;   // cener right target trigger analog pin 2
const int trigger4Pin = 3;   // right target trigger analog pin 3

const int buttonResetPin = 5;  // LCD reset button

const int relayBellPin = 6;  // bell solenoid

const int relay0Pin =  7;     // left flipper solenoid
const int relay1Pin =  8;     // right flipper solenoid
const int relay2Pin =  9;     // shooter solenoid
const int relay3Pin =  10;    // left target solenoid
const int relay4Pin =  11;    // center left target solenoid
const int relay5Pin =  12;    // center right target solenoid
const int relay6Pin =  13;    // right target solenoid

// variables will change:
int button0State = 0;
int button1State = 0;         // variable for reading the pushbutton status
int button2State = 0;

int buttonResetState = 0;
int gameScore = 0;
int trigger1Value = 1000;
int trigger2Value = 1000;
int trigger3Value = 1000;
int trigger4Value = 1000;
int threshold = 800;
int delayTimeIn = 1000;
int delayTimeOut = 100;


void setup() { 
  
  lcd.init();
  lcd.print("   Game Score:");
  
//  Serial.begin(9600);
  
  
  // initialize the pushbutton pin as an input:
  pinMode(button0Pin, INPUT);
  pinMode(button1Pin, INPUT);     
  pinMode(button2Pin, INPUT);    
  
  pinMode(buttonResetPin, INPUT);
   
  // initialize the relay pin as an output:
  pinMode(relay0Pin, OUTPUT);
  pinMode(relay1Pin, OUTPUT);    
  pinMode(relay2Pin, OUTPUT);
  pinMode(relay3Pin, OUTPUT);
  pinMode(relay4Pin, OUTPUT);
  pinMode(relay5Pin, OUTPUT);
  pinMode(relay6Pin, OUTPUT);
  pinMode(relayBellPin, OUTPUT);
  
  digitalWrite(relay0Pin, LOW);  
  digitalWrite(relay1Pin, LOW);  
  digitalWrite(relay2Pin, LOW);  
  digitalWrite(relay3Pin, LOW);
  digitalWrite(relay4Pin, LOW);
  digitalWrite(relay5Pin, LOW);
  digitalWrite(relay6Pin, LOW);
  digitalWrite(relayBellPin, LOW);
}

void loop(){
  
  // read the state of the pushbutton values:
  button0State = digitalRead(button0Pin);
  button1State = digitalRead(button1Pin);
  button2State = digitalRead(button2Pin);
  
  buttonResetState = digitalRead(buttonResetPin);

  trigger1Value = analogRead(trigger1Pin);
  trigger2Value = analogRead(trigger2Pin);
  trigger3Value = analogRead(trigger3Pin);  
  trigger4Value = analogRead(trigger4Pin);

//  Serial.println(trigger4Value);
  
  
  // check if the pushbutton0 is pressed.
  // if it is we turn on the relay/solenoid
  if (button0State == HIGH) {     
    // turn relay on:    
    digitalWrite(relay0Pin, HIGH);  
  } 
  // When we let go of the button, turn off the relay
  else if ((button0State == LOW) && (digitalRead(relay0Pin) == HIGH)) {
    // turn relay off
    digitalWrite(relay0Pin, LOW); 
  } 


  // check if the pushbutton1 is pressed.
  // if it is we turn on the relay/solenoid
  if (button1State == HIGH) {     
    // turn relay on:    
    digitalWrite(relay1Pin, HIGH);  
  } 
  // When we let go of the button, turn off the relay
  else if ((button1State == LOW) && (digitalRead(relay1Pin) == HIGH)) {
    // turn relay off
    digitalWrite(relay1Pin, LOW); 
  } 

  // check if the pushbutton2 is pressed.
  // if it is we turn on the relay/solenoid
  if (button2State == HIGH) {     
    // turn relay on:    
    digitalWrite(relay2Pin, HIGH);  
  } 
  // When we let go of the button, turn off the relay
  else if ((button2State == LOW) && (digitalRead(relay2Pin) == HIGH)) {
    // turn relay off
    digitalWrite(relay2Pin, LOW); 
  } 
  
  // check if the left target light beam is broken
  // if it is we turn on the relay/solenoid
  if (trigger1Value < threshold) {     
    delay(delayTimeIn);
    trigger1Value = analogRead(trigger1Pin);
    // test to see if ball is really resting in the target
    if (trigger1Value < threshold  ) {
      // turn relay on:    
      digitalWrite(relay3Pin, HIGH);  
      // ring the bell
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      // turn the relay off
      digitalWrite(relay3Pin, LOW);
      gameScore = gameScore + 50;
      lcd.setCursor(0,1);
      lcd.print("       ");
      lcd.print(gameScore);
    } 
  } 
  
  
    // check if the center left target light beam is broken
  // if it is we turn on the relay/solenoid
  if (trigger2Value < threshold) {     
    delay(delayTimeIn);
    trigger2Value = analogRead(trigger2Pin);
    // test to see if ball is really resting in the target
    if (trigger2Value < threshold  ) {
      // turn relay on:    
      digitalWrite(relay4Pin, HIGH);  
      // ring the bell
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      // turn the relay off
      digitalWrite(relay4Pin, LOW);
      gameScore = gameScore + 100;
      lcd.setCursor(0,1);
      lcd.print("       ");
      lcd.print(gameScore);
    } 
  } 

  

  // check if the center right target light beam is broken
  // if it is we turn on the relay/solenoid
  if (trigger3Value < threshold) {     
    delay(delayTimeIn);
    trigger3Value = analogRead(trigger3Pin);
    // test to see if ball is really resting in the target
    if (trigger3Value < threshold  ) {
      // turn relay on:    
      digitalWrite(relay5Pin, HIGH);  
      // ring the bell
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      //turn off relay
      digitalWrite(relay5Pin, LOW);
      gameScore = gameScore + 10;
      lcd.setCursor(0,1);
      lcd.print("       ");
      lcd.print(gameScore);
    } 
  } 

  // check if the right target light beam is broken
  // if it is we turn on the relay/solenoid
  if (trigger4Value < threshold) {     
    delay(delayTimeIn);
    trigger4Value = analogRead(trigger4Pin);
    // test to see if ball is really resting in the target
    if (trigger4Value < threshold  ) {
      // turn relay on:    
      digitalWrite(relay6Pin, HIGH);  
      // ring the bell
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, HIGH);
      delay(delayTimeOut);
      digitalWrite(relayBellPin, LOW);
      // turn off relay
      digitalWrite(relay6Pin, LOW);
      gameScore = gameScore + 100;
      lcd.setCursor(0,1);
      lcd.print("       ");
      lcd.print(gameScore);
    } 
  } 
 
  if (buttonResetState == HIGH) {
    lcd.setCursor(0,1);
    gameScore = 0;
    lcd.print("       0       ");
  }


}