// LCD1602 and Pi Pico!

#include <LiquidCrystal.h>
#include <stdio.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
#define buttonPin 6

uint8_t full[8] = {
  0b11111,
  0b11111,
  0b11111,
  0b11111,
  0b11111,
  0b11111,
  0b11111,
  0b11111,
};

uint8_t empty[8] = {
  0b11111,
  0b10001,
  0b10001,
  0b10001,
  0b10001,
  0b10001,
  0b10001,
  0b11111,
};

void setup() {
  Serial.begin(9600);
  
  lcd.createChar(3, full);
  lcd.createChar(2, empty);

  lcd.begin(16, 2);
  lcd.setCursor(12,0);
  lcd.print("|");

  pinMode(buttonPin, INPUT_PULLUP);
}

int x = 0;
int timer = 0;
int score = 0;
int tempScore = 0;
bool clicked = false;
bool hitRight = false;
bool stopped = false;

void loop() {
  if (score < 10 and not stopped) {
    timer ++;
    delay(1); // Adding a delay() here speeds up the simulation
    if (timer > 500) {
      lcd.clear();
      lcd.setCursor(x,0);
      lcd.print("\x03 ");
      x += 2;

      timer = 0;
      clicked = false;
    }
    if (x >= 16) { 
      x = 0;
      if (not hitRight) { score --; }
      hitRight = false;
    }
    
    lcd.setCursor(12,0);
    lcd.print("|");
    lcd.setCursor(8,1);
    lcd.print(score);
    
    if (digitalRead(buttonPin) == LOW) { // used to have a bug here | digitalRead(buttonPin == LOW)
      if (x == 14 and not clicked) {
        tempScore += 500-timer;
        if (tempScore > 200) {
          score ++;
          hitRight = true;
        }
        else {
          score --;
        }
        clicked = true;
      }
      else if (not clicked) {
        score --;
        clicked = true;
      }
    }
  }
  else if (score > 9) {
    stopped = true;
    lcd.clear();
    lcd.setCursor(8,0);
    lcd.print("You win!");
  }
  if (score < -10) {
    stopped = true;
    lcd.clear();
    lcd.setCursor(8,0);
    lcd.print("... why?");
  }
}