from machine import Pin
import time

# Pins instellen
l0 = Pin(0, Pin.OUT)
l1 = Pin(1, Pin.OUT)
l2 = Pin(2, Pin.OUT)
l3 = Pin(3, Pin.OUT)
l4 = Pin(4, Pin.OUT)
l5 = Pin(5, Pin.OUT)
l6 = Pin(6, Pin.OUT)
l7 = Pin(7, Pin.OUT)

# Knoppen
k_links = Pin(14, Pin.IN)
k_rechts = Pin(15, Pin.IN)

# Beginstand
richting = 0
positie = -1

while True:
    # 1. WACHTEN OP START
    if richting == 0:
        if k_links.value() == 1:
            positie = 0
            richting = 1
            time.sleep(0.3)
        elif k_rechts.value() == 1:
            positie = 7
            richting = 2
            time.sleep(0.3)

    # 2. HET LOOPLICHTJE
    if richting != 0:
        # Alles uit
        l0.value(0); l1.value(0); l2.value(0); l3.value(0)
        l4.value(0); l5.value(0); l6.value(0); l7.value(0)
        
        # Huidige aan
        if positie == 0: l0.value(1)
        if positie == 1: l1.value(1)
        if positie == 2: l2.value(1)
        if positie == 3: l3.value(1)
        if positie == 4: l4.value(1)
        if positie == 5: l5.value(1)
        if positie == 6: l6.value(1)
        if positie == 7: l7.value(1)
        
        time.sleep(0.4)
        
        # Check terugslag op de uiterste LED
        if positie == 7 and richting == 1 and k_rechts.value() == 1:
            richting = 2
        elif positie == 0 and richting == 2 and k_links.value() == 1:
            richting = 1
        
        # Bewegen
        if richting == 1:
            positie = positie + 1
        else:
            positie = positie - 1
        
        # Game over check
        if positie > 7 or positie < 0:
            # 5 seconden knipperen
            teller = 0
            while teller < 10:
                l0.value(1); l1.value(1); l2.value(1); l3.value(1)
                l4.value(1); l5.value(1); l6.value(1); l7.value(1)
                time.sleep(0.25)
                l0.value(0); l1.value(0); l2.value(0); l3.value(0)
                l4.value(0); l5.value(0); l6.value(0); l7.value(0)
                time.sleep(0.25)
                teller = teller + 1
            
            # Reset
            richting = 0
            positie = -1