Merged Test

import time
from neopixel import *
import skywriter
import signal
from math import ceil

grid_width=12
grid_height=8

# LED strip configuration:
LED_COUNT      = 96      # 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        = 5       # DMA channel to use for generating signal (try 5)
LED_BRIGHTNESS = 50      # Set to 0 for darkest and 255 for brightest
LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)

strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS)

def xy_to_strip(x, y, strip_len):
	return y*strip_len + x

def set_pixel(id, colour):
        if id>-10 and id<96:
                print str(id)+":"+str(colour)
		strip.setPixelColor(id, colour)	
		print 'id {}, {} '.format(id, colour)
	else:
		print 'id {}, {} out of range'.format(id, colour)

def set_shape(x, y):
	for i in (-2, -1, 0, 1, 2):
		for j in (-2, -1, 0, 1, 2):
			mode = abs(i)+ abs(j)
			if mode == 0:
				set_pixel(xy_to_strip(x+i, y+j, 8), Color(250, 200, 200))
			if mode == 1:
				set_pixel(xy_to_strip(x+i, y+j, 8), Color(250, 0, 100))
			if mode == 2:
				set_pixel(xy_to_strip(x+i, y+j, 8), Color(100, 0, 100))	
			if mode == 3:
				set_pixel(xy_to_strip(x+i, y+j, 8), Color(50, 0, 50))
			if mode == 4:
				set_pixel(xy_to_strip(x+i, y+j, 8), Color(25, 0, 25))

				

strip.begin()

# this handles move events from the skywriter library
@skywriter.move()
def move(x,y,z):
    tx = ceil(x * grid_width)
    # if up and down are reversed remove the "grid_height - " bit
    ty = int(grid_height - ceil(y * grid_height))
    set_shape(tx, ty)
    strip.show()


signal.pause()