Basic Piano

# import pygame library - which allows sounds

import pygame
import play

# Backdrop colour
play.set_backdrop('light blue')

introduce1 = play.new_text(words='Piano for fun!', x=0, y=200)

introduce2 = play.new_text(words='Create your melody by pressing the keys', x=0, y=150)

# BUTTONS
key_play_melody = play.new_box(color='light green', border_color='black', border_width=1, x=-100, y=-170, width=160, height=50)

kpm = play.new_text(words='play melody', x=-100, y=-170, font_size=20)

key_clear_melody = play.new_box(color='light yellow', border_color='black', border_width=1, x=100, y=-170, width=160, height=50)

kcm = play.new_text(words='clear melody', x=100, y=-170, font_size=20)
sound_clear_melody = pygame.mixer.Sound('clear_melody.wav') # DELETE THIS IF YOU DON'T HAVE THE FILE

# Activate the for loop + lists

keys = []
sounds = []

for i in range(8):
    key_x = -180 + i * 50
    key = play.new_box(color='white', border_color='black', border_width=3, x=key_x, y=0, width=40, height=100)
    sound = pygame.mixer.Sound(str(i+1)+'.ogg') # Adds the sound file: 1.ogg, 2.ogg, ...
    keys.append(key)     # Adds keys to the keys list
    sounds.append(sound) # Adds sounds to the sound list

melody = []

# This is the intro jingle that plays at the start of the program ✨

@play.when_program_starts
def start():
    pygame.mixer_music.load('hello-1.mp3')
    pygame.mixer_music.play()

# This is clearing the melody - delete all

@key_clear_melody.when_clicked
def clear():
    melody.clear()
    sound_clear_melody.play() # DELETE IF YOU DON'T HAVE IT

# Processing clicks - when button is clicked, what happens?

@key_play_melody.when_clicked
async def play_m():
    for i in range(len(melody)):
        await play.timer(seconds=0.5)
        sounds[melody[i]].play()

# Recording sounds - remembers the melody by adding it to the list

@play.repeat_forever
async def play_piano():
    for i in range(len(keys)):
        if keys[i].is_clicked:
            keys[i].color = 'light grey'    # Changes to this
            sounds[i].play()
            await play.timer(seconds=0.3)
            keys[i].color = 'white'         # Go back to starting colour
            melody.append(i)

play.start_program()