Demo graphics, buttons/joypad and neopixel funcionality on the Pygamer

main.py

"""
Flappy Box Demo

Demo of graphics, buttons/joypad and neopixel funcionality on the Pygamer

Joypad to move left and right
A for jump
B for telepport
Select/Start to cycle through box colors
Neopixels change color based on box position

Thanks to MakerMelissa for the example code for getting button presses at 
https://github.com/makermelissa/Nametag
"""
import board
import gamepadshift
import displayio
import digitalio
import analogio
import time
from adafruit_display_shapes.rect import Rect
import neopixel
import gamepad
import random

pixels = neopixel.NeoPixel(board.NEOPIXEL, 5)

# Button Constants
BUTTON_LEFT = const(128)
BUTTON_UP = const(64)
BUTTON_DOWN = const(32)
BUTTON_RIGHT = const(16)
BUTTON_SEL = const(8)
BUTTON_START = const(4)
BUTTON_A = const(2)
BUTTON_B = const(1)

x = 75
y = 75
xv = 0
yv = 0

pad = gamepadshift.GamePadShift(digitalio.DigitalInOut(board.BUTTON_CLOCK),
                   digitalio.DigitalInOut(board.BUTTON_OUT),
                   digitalio.DigitalInOut(board.BUTTON_LATCH))

splash = displayio.Group()
rect = Rect(x, y, 5, 5, fill=0xFF0000) 
splash.append(rect)
board.DISPLAY.show(splash)
xPin = analogio.AnalogIn(board.JOYSTICK_Y)
yPin = analogio.AnalogIn(board.JOYSTICK_X)

rColors = [
    0xFF0000,
    0x00FF00,
    0xFF00FF,
    0x0000FF,
    0xFFFFFF,
]

rIndex = 0

def check_buttons(buttons):
    global x, y, xv, yv, rIndex, rColors
    if (buttons & BUTTON_SEL) > 0 and rIndex > 0:
        print('Select')
        rIndex -= 1
    elif (buttons & BUTTON_START) > 0 and rIndex < len(rColors) - 1:
        print('Start')
        rIndex += 1
    elif (buttons & BUTTON_A) > 0:
        print('A')
        yv -= 15
    elif (buttons & BUTTON_B) > 0:
        print('B')
        x = random.randint(0, 160)
        y = random.randint(0, 80)

# Main Loop
current_buttons = pad.get_pressed()
last_read = 0
while True:
    #get joystick input
    jx = round(((xPin.value / 1000) - 32) / 60) 
    jy = round(((yPin.value / 1000) - 32) / 60)    
    if(abs(xv) < 1):
        xv += jx
    xv = xv*.8
    yv = yv*.8
    yv = yv+.2
    x += xv
    y += yv
    size = round(y*.3)
    if(x<0):
        x=0
        xv=0
    elif((x+size)>160):
        x=(155 - size)
        xv=0
    if(y<0):
        y=0
        yv=0
    elif((y+size)>125):
        y=(125-size)
        yv=0
    if(size<10):
        size = 10

    #draw the box
    rect = Rect(round(x), round(y), size, size, fill=rColors[rIndex]) 
    splash.pop()
    splash.append(rect)
    
    #light up the neopixels
    mx = round(x) + size
    b = round(x) + 10
    if(b>255):
        b=255
    if(b<0):
        b=0
    for i in range(0, 5):
        if(mx > i*35):
            pixels[i] = (b,0,0)
        else:
            pixels[i] = (round(b/2),0,round(b/2))

    #get button presses
    if (last_read + 0.03) < time.monotonic():
        buttons = pad.get_pressed()
        last_read = time.monotonic()
    if current_buttons != buttons:
        check_buttons(buttons)
        current_buttons = buttons
    pass