from machine import Pin
import time

# Define the pins for the LEDs and the button
led_pins = [4, 5, 18, 19, 21, 22, 23]
button_pin = 15

# Set the pins to output mode and turn all LEDs off initially
leds = [Pin(pin, Pin.OUT) for pin in led_pins]
for led in leds:
    led.off()

# Set the button pin to input mode with pull-up resistor
button = Pin(button_pin, Pin.IN, Pin.PULL_UP)

# Define the colors for the LEDs
green = (0, 255, 0)
red = (255, 0, 0)

# Define the animation pattern
pattern = [green] * 3 + [red] + [green] * 3

# Define the starting pace and pace increment
pace = 0.5
pace_increment = 0.01

# Define the score variable and starting direction
score = 0
direction = 1  # 1 for left to right, -1 for right to left

# Define a function to delay without using time.sleep
def delay(ms):
    start = time.ticks_ms()
    while time.ticks_diff(time.ticks_ms(), start) < ms:
        pass

# Run the animation for a maximum of 40 cycles
for i in range(40):
    # Update the pace if we've gone back and forth
    if i > 0 and i % 2 == 0:
        pace -= pace_increment

    # Loop through the LEDs based on the direction
    for j in range(7)[::direction]:
        # Determine the color of the current LED
        color = pattern[j % 4]

        # Turn on the current LED
        leds[j].on()
        delay(int(pace * 1000))

        # Check if the button was pressed during the green LED
        if j % 4 == 0 and button.value() == 0:
            score += 1
            print("Score:", score)

        # Turn off the current LED
        leds[j].off()
        delay(int(pace * 1000))

    # Reverse the direction
    direction *= -1