'''
Mission 11 - Spirit Level
Extensions and Challenges
'''


from codex import *
from time import sleep


CENTER = 120
display.fill(BLACK)
display.draw_line(CENTER, 0, CENTER, 105,WHITE)
display.draw_line(CENTER, 135, CENTER, 239, WHITE)
display.draw_line(0, CENTER, 105, CENTER, WHITE)
display.draw_line(135, CENTER, 239, CENTER, WHITE)


x = CENTER
y = CENTER


def wait_button():
    display.print("Press A to start")
    while True:
        if buttons.was_pressed(BTN_A):
            break


# MAIN PROGRAM
wait_button()


while True:
    val = accel.read()
    tilt_x = val[0]
    scaled_x = (tilt_x/16384) * 90
    degrees_x = int(scaled_x)
    if degrees_x < -90:
        degrees_x = -90
    if degrees_x > 90:
        degrees_x = 90


    tilt_y = val[1]
    scaled_y = (tilt_y/16384) * 90
    degrees_y = int(scaled_y)
    if degrees_y < -90:
        degrees_y = -90
    if degrees_y > 90:
        degrees_y = 90


    if degrees_x < 0.020 and degrees_x > -0.020 and degrees_y < 0.020 and degrees_y > -0.020:
        display.fill_rect(105, 105, 30, 30, YELLOW)
        display.draw_text("*", scale=8, x=122, y=122, color=BLACK)
    else:
        display.fill_rect(105, 105, 30, 30, BLACK)
        display.draw_circle(x, y, 15, BLACK)
        x = CENTER + degrees_x
        y = CENTER + degrees_y
        display.draw_circle(x, y, 15, ORANGE)
    
    sleep(0.5)
    
    if buttons.was_pressed(BTN_B):
        break


display.fill(BLUE)
display.print("Program Stopped")