from machine import Pin
from time import sleep 
import lcd
import random 
lcd_rs = Pin(12,Pin.OUT)
lcd_e  = Pin(11,Pin.OUT)
lcd_d4 = Pin(10,Pin.OUT)
lcd_d5 = Pin(9,Pin.OUT)
lcd_d6 = Pin(8,Pin.OUT)
lcd_d7 = Pin(7,Pin.OUT)

button = Pin(15,Pin.IN)

lcd.init(lcd_rs,lcd_e,lcd_d4,lcd_d5,lcd_d6,lcd_d7) #initialize the lcd( prepare it for the commands)
lcd.clear() #clear screen
lcd.load_custom_chars() #load the character of obstacle and the player
#player coordinates
player_col = 1
player_row = 1
previous_button = 0
#obstacle coordinates
obstacle_col = 15
obstacle_row = random.randint(0,1)

while True:
    #Check if the button is pressed or not 
    current_button = button.value()
    #if button is pressed move player up or down
    if current_button == 1 and previous_button == 0:
        if player_row == 1:
            player_row = 0
        else:
            player_row = 1
    previous_button = current_button     

    lcd.clear()  

    #print th characters
    lcd.setCursor(player_col,player_row)
    lcd.print(chr(0))
    lcd.setCursor(obstacle_col,obstacle_row)
    lcd.print(chr(1))    

    #check for collision ( when obstacle hits the player)
    if obstacle_col == player_col and obstacle_row == player_row:
        lcd.setCursor(0,0)
        lcd.print("   GAME OVER  ")
        lcd.setCursor(0,1)
        lcd.print("   Restarting ")
        sleep(2)

        player_col = 1
        player_row = 1
        obstacle_col = 15
        obstacle_row = random.randint(0,1)
        lcd.clear()
        continue
    
    #mvoe the obstacle to left (15 --> 0)
    obstacle_col = obstacle_col-1
    if obstacle_col < 0:
        obstacle_col = 15
        obstacle_row = random.randint(0,1)
    sleep(0.15)