/*跑馬燈效果及順序：
改成這樣比較順

右進 Who are you？
右進 Don't hurt me
閃現 H E L P
閃現 Press it!
右進 Eternally Greatful (救活)
閃現 x_x（死亡）*/

// button flag, end,run code

 // put your setup code here, to run once:
#define TRIGGER_PIN 7
#define ECHO_PIN 6 

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
unsigned long time_now = 0;
const int flashDuration = 1000;  // Duration of each flash in milliseconds
int flashCount = 0;



const int buttonPin = 3; 
// Variables for button state
int buttonState = HIGH;         // Assume the button is not pressed initially
int lastButtonState = HIGH;
unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 10;
boolean isFirstTime = true;  // Flag to track the first button press

// Variables for game state
boolean gameStarted = false;
int successThreshold;
int failureThreshold;
int successCount = 0;
int failureCount = 0;



// Variable for button press count
int buttonPressCount = -2;

void setup() {
  time_now = millis();

  //Ultrasonic sensor
  Serial.begin(9600);
  pinMode(TRIGGER_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  //button
  pinMode(3, INPUT);

 // Initialize random seed
  randomSeed(analogRead(0));  // Use an analog pin for better randomness

  //I2C 16x02 lcd
  lcd.init();
  lcd.backlight();


}

void loop() {
  // sensor get distance
  int distance = getDistance();
  Serial.println(distance);
  
  //count the press
  int reading = digitalRead(buttonPin);

  // Perform debouncing
  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != buttonState) {
      buttonState = reading;

      // Increment the button press count when the button is pressed
      if (buttonState == LOW) {
        buttonPressCount++;
        lcdCondition();        
      }
    }
  }
  // Save the current button state for the next iteration
  lastButtonState = reading;
  
}


void lcdCondition(){
  if (buttonPressCount <= -1) {
    displayBasedOnDistance();    
  }
  else if (buttonPressCount > -1){
  //game starts with showing number, at buttonPressCount == 2 display other  words
  //if distance else
    if (buttonPressCount == 0){
      initializeGame();

    }
     else if (buttonPressCount > 0) {
      handleGameEvent();
    }
  }
}

void displayBasedOnDistance(){
  if (getDistance() <= 35) { 
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Press the button");
  lcd.setCursor(0,1);
  lcd.print("to save me...");
  }
  else if (getDistance() > 35 && getDistance() <= 45) {
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("HELP, I'm dying XAX");
  }

  else if (getDistance() > 45 && getDistance() <=54){
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Don't hurt me");
  }

  else {
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Who are you?");
  }
}

//謝瀞瑩
int getDistance() {
  // Function to get distance from ultrasonic sensor
  digitalWrite(TRIGGER_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGGER_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGGER_PIN, LOW);

  return pulseIn(ECHO_PIN, HIGH) * 0.034 / 2; // Convert pulse duration to centimeters
}

void initializeGame() {
  // Perform game initialization tasks
  successThreshold = random(1,10); // Adjust the range for success threshold
  failureThreshold = random(1,10); // Adjust the range for failure threshold
  successCount = 0;
  failureCount = 0;

  // Display initialization information on the LCD, if needed
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Success: " + String(successThreshold));
  lcd.setCursor(0, 1);
  lcd.print("Failure: " + String(failureThreshold));
}

void handleGameEvent() {
  // Perform actions based on the outcome of the random event
  bool success = random(0, 2); // 50% chance of success
  if (success) {
    successCount++;
    // Display success message on the LCD, if needed
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("YES");
    lcd.print(successCount);
  } else {
    failureCount++;
    // Display failure message on the LCD, if needed
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("NO");
    lcd.print(failureCount);
  }

  // Check for game end conditions
  if (successCount >= successThreshold || failureCount >= failureThreshold) {
    endGame();
    gameStarted = false; // Reset the game state for the next round
  }

  // Additional actions for servo, MP3 player, and other components
}

void endGame() {
  // Perform actions when the game reaches its end
  if (successCount >= successThreshold) {
    // Actions for a successful game end
    // This is where you can trigger servo, MP3 player, etc.
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Success: " + String(successCount));
    lcd.setCursor(0, 1);
    lcd.print("You WIN!");
  } 
  else {
    // Actions for a failed game end
    // This is where you can trigger different actions
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Failure: " + String(failureCount));
    lcd.setCursor(0, 1);
    lcd.print("You LOSE!");
  }

  // Additional actions for LCD, vibration motor, etc.
}


/* if button is not pressed, continue display
void loop{the display void}


if button is pressed, use game's distance to define
if distance < 50;
play game

if distance > 50. end game.

*/