# NeoPixel library strandtest example
# Author: Tony DiCola (tony@tonydicola.com)
#
# Direct port of the Arduino NeoPixel library strandtest example.  Showcases
# various animations on a strip of NeoPixels.
import time

from neopixel import *


# LED strip configuration:
LED_COUNT      = 494      # Number of LED pixels.
LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).
LED_FREQ_HZ    = 800000  # LED signal frequency in hertz (usually 800khz)
LED_DMA        = 10      # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255     # Set to 0 for darkest and 255 for brightest
LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL    = 0
LED_STRIP      = ws.SK6812_STRIP_RGBW
#LED_STRIP      = ws.SK6812W_STRIP

class Led:
	leds = []
	def __init__(self, id, x, y):
		self.x = x
		self.y = y
		Led.leds.append(self)



def colorFromIntensity(intensity):
	#intensity should be 0-255
	if intensity>20:
		return Color(0,int(intensity),int(intensity/2),int(intensity/8)+20)
	else:
		return Color(0,0,0,20)

def intensityFromDistance(distance):
	if distance<0:
		return 0
	intensity = 255-(distance/3)
	if intensity < 0:
		return 0
	else:
		return intensity

# Main program logic follows:
if __name__ == '__main__':
	# Create NeoPixel object with appropriate configuration.
	strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
	# Intialize the library (must be called once before other functions).
	strip.begin()

	print ('Press Ctrl-C to quit.')

	with open("leds.txt", "r") as infile:
		for line in infile:
			 entry = [int(x) for x in line.split(',')]
			 Led(entry[0], entry[1], entry[2])

	# all LEDs now ready
	edge = -500
	t = 0
	while True:
		t+=1
		for i, led in enumerate(Led.leds):
			if t % 2 ==0:
				strip.setPixelColor(i, Color(0b10101010,
                                                             0b10101010,
                                                             0b10101010,
                                                             0b10101010))
			else:
				strip.setPixelColor(i, Color(0,0,0,0))
		strip.show()
		time.sleep(1)