def populate(self, chunk, seed):
"""
Make smooth waves of stone.
"""
reseed(seed)
# And into one end he plugged the whole of reality as extrapolated
# from a piece of fairy cake, and into the other end he plugged his
# wife: so that when he turned it on she saw in one instant the whole
# infinity of creation and herself in relation to it.
factor = 1 / 1024
for x, z in product(xrange(16), xrange(16)):
magx = (chunk.x * 16 + x) * factor
magz = (chunk.z * 16 + z) * factor
height = octaves(magx, magz, 5)
# Normalize around 70. Normalization is scaled according to a
# rotated cosine.
scale = rotated_cosine(magx, magz, seed, 16 * 10)
height *= scale * 30
height += 70
for y in xrange(int(height)):
chunk.set_block((x, y, z), blocks["stone"].slot)
import sys
import Image
from beta.simplex import reseed, octaves
WIDTH, HEIGHT = 800, 800
if len(sys.argv) < 6:
print "Usage: %s <x> <y> <w> <h> <octaves>" % __file__
sys.exit()
x, y, w, h, depth = (int(i) for i in sys.argv[1:6])
image = Image.new("L", (WIDTH, HEIGHT))
pbo = image.load()
reseed(0)
for i, j in itertools.product(xrange(WIDTH), xrange(HEIGHT)):
# Get our scaled coords
xcoord = x + w * i / WIDTH
ycoord = y + h * j / HEIGHT
# Get noise and scale from [-1, 1] to [0, 255]
noise = (octaves(xcoord, ycoord, depth) + 1) * 127.5
pbo[i, j] = noise
image.save("noise.png")
def setUp(self):
reseed(0)