#include "pitches.h"
#include <Wire.h> // I2C程式庫
#include <LiquidCrystal_I2C.h> // LCD_I2C模組程式庫

// LCD I2C位址，默認為0x27或0x3F，依據背板的晶片不同而有差異，16、2為LCD顯示器大小。
// A4、A5的腳位為Arduino Uno 定義的I2C腳位
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int LDRpin_1 = A0; //綠
const int LDRpin_2 = A2; //黃
const int buttonPin = 9; 
int buttonState = 0;

//得分的光敏電阻讀值的門檻
int score_r = 1900;
int score_r_2 = 3200; //4個光敏電阻的
int gameover_r = 800;

// notes in the melody:
int melody_score[] = {
  NOTE_E4, NOTE_G4, NOTE_C5, NOTE_E5, NOTE_C5
};

int melody_over[] = {
  NOTE_E4, NOTE_C4, NOTE_G3, 0, NOTE_F3, NOTE_E4
};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations_score[] = {
  8, 8, 8, 8, 8
};
int noteDurations_over[] = {
  8, 8, 4, 8, 8, 4
};

int score = 0; // 計分板分數

void setup() {
  Serial.begin(9600);
  pinMode(3, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);

  // 初始化LCD
  lcd.init();
  lcd.backlight();
  lcd.setCursor(2, 0); // (column, row)從第一排的第三個位置開始顯示
  lcd.print("Pinball Game");
  lcd.setCursor(5, 1); // (column, row)從第一排的第六個位置開始顯示
  lcd.print("Start");
  delay(1500);
  playScore();
  countdown();
}

void loop() {
  int sensorValue_1 = analogRead(LDRpin_1);
  int sensorValue_2 = analogRead(LDRpin_2);
  int gameoverValue = analogRead(A1); //感應遊戲結束

  sensorValue_1 = map(sensorValue_1, 0, 1023, 0, 3069);
  sensorValue_2 = map(sensorValue_2, 0, 1023, 0, 4096);
  gameoverValue = map(gameoverValue, 0, 1023, 0, 2046);
  Serial.println(sensorValue_1);
  Serial.println(sensorValue_2);
  Serial.println(gameoverValue);
  Serial.println(score);
  Serial.println(" ");

  // 計分板
  lcd.setCursor(2, 0); // (column, row)從第一排的第三個位置開始顯示
  lcd.print("Pinball Game");
  lcd.setCursor(2, 1); // (column, row)從第一排的第三個位置開始顯示
  lcd.print("Score : ");
  lcd.setCursor(10, 1); // (column, row)從第十一個位置開始顯示
  lcd.print(score);

  if (gameoverValue < gameover_r) { // 假設遊戲結束的條件
    lcd.clear(); // 清除LCD內容
    lcd.setCursor(4, 0); // 顯示 "Game Over"
    lcd.print("Game Over");
    lcd.setCursor(1, 1); // (column, row)從第一排的第三個位置開始顯示
    lcd.print("Total Score : ");
    lcd.setCursor(14, 1); // (column, row)從第十一個位置開始顯示
    lcd.print(score);
    playGameOver(); // 播放遊戲結束音效
    showGameover();
    
    //只要感測到就不會繼續restart
    while (gameoverValue < gameover_r) { 
      gameoverValue = analogRead(A1); // 持續更新 gameoverValue
      gameoverValue = map(gameoverValue, 0, 1023, 0, 2046); // 重新映射
      Serial.println(gameoverValue);
      delay(100);
    }
    delay(500);
    restart();
  } 
  else if (sensorValue_1 < score_r) { // 感應到的條件
    digitalWrite(3, HIGH); // 燈亮
    playScore();
    score += 1; // 計分+1
    showScore();
  }else if (sensorValue_2 < score_r_2) { // 感應到的條件
    digitalWrite(3, HIGH); // 燈亮
    playScore();
    score += 3; // 計分+3
    showScore();
  } else {
    digitalWrite(3, LOW); // 燈滅
  }

  //讀取按鈕狀態
  buttonState = digitalRead(buttonPin);
  if(buttonState == LOW){
    //digitalWrite(3, HIGH); // 燈亮
    //playScore();
    //score += 1; // 計分+1
    //showScore();
  }else {
    digitalWrite(3, LOW); // 燈滅
  }

  delay(20); // 延遲時間調整
}

void playScore() {
  for (int thisNote = 0; thisNote < 5; thisNote++) { // 修正循環次數
    int noteDuration = 1000 / noteDurations_score[thisNote];
    tone(8, melody_score[thisNote], noteDuration); // pin腳=8

    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // 停止音調播放
    noTone(8);
  }
}

void playGameOver() {
  for (int thisNote = 0; thisNote < 6; thisNote++) { // 修正循環次數
    int noteDuration = 1000 / noteDurations_over[thisNote];
    tone(8, melody_over[thisNote], noteDuration); // pin腳=8

    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // 停止音調播放
    noTone(8);
  }
}

void restart(){
  lcd.clear();
  lcd.setCursor(2, 0); // (column, row)從第一排的第三個位置開始顯示
  lcd.print("Pinball Game");
  lcd.setCursor(5, 1); // (column, row)從第一排的第六個位置開始顯示
  lcd.print("Restart");
  delay(2000);
  countdown();
  score = 0; // 分數歸零
  lcd.clear();
  lcd.setCursor(2, 0); // 恢復 Pinball Game 畫面
  lcd.print("Pinball Game");
  lcd.setCursor(2, 1);
  lcd.print("Score : ");
  lcd.setCursor(10, 1);
  lcd.print(score);
}

void countdown(){
  lcd.clear();
  lcd.setCursor(2, 0); // (column, row)從第一排的第三個位置開始顯示
  lcd.print("Pinball Game");
  for (int i = 1; i < 6; i++){
    int j = 6 - i;
    lcd.setCursor(7, 1);
    lcd.print(j);
    digitalWrite(3, HIGH); // 燈亮
    delay(700);
    digitalWrite(3, LOW); // 燈滅
    delay(300);
  }
}

void showScore(){
  lcd.setCursor(10, 1); // (column, row)從第一排的第十一個位置開始顯示
  lcd.print(score);
}

void showGameover(){
  if(score < 5){
    delay(1000);
    lcd.setCursor(4, 0); // 顯示 "Game Over"
    lcd.print("Keep it up !");
  }else if (score >= 5 && score < 10){
    delay(1000);
    lcd.setCursor(4, 0); // 顯示 "Game Over"
    lcd.print("Great job !");
  }else if (score >= 10 && score < 15){
    delay(1000);
    lcd.setCursor(4, 0); // 顯示 "Game Over"
    lcd.print("Awesome !");
  }else if (score >= 15 && score < 20){
    delay(1000);
    lcd.setCursor(3, 0); // 顯示 "Game Over"
    lcd.print("Fantastic !");
  }else if (score >= 20){
    delay(1000);
    lcd.setCursor(0, 0); // 顯示 "Game Over"
    lcd.print("You're on fire !");
  }
}