def test_watermap_rng_stabilty(self):
seed = 12345
numpy.random.seed(seed)
size = Size(16, 8)
ocean = numpy.fromfunction(lambda y, x: y == x,
(size.height, size.width))
percipitation = numpy.ones((size.height, size.width))
elevation = numpy.fromfunction(lambda y, x: y * x,
(size.height, size.width))
t = numpy.zeros(5)
w = World("watermap", size, seed, GenerationParameters(0, 1.0, 0))
w.ocean = ocean
w.precipitation = (percipitation, t)
w.elevation = (elevation, t)
d = numpy.random.randint(0, 100)
self.assertEqual(d, 98)
data, t = WatermapSimulation._watermap(w, 200)
self.assertAlmostEqual(data[4, 4], 0.0)
self.assertAlmostEqual(data[3, 5], 4.20750776)
d = numpy.random.randint(0, 100)
self.assertEqual(d, 59)
def _plates_simulation(name,
width,
height,
seed,
temps=[.874, .765, .594, .439, .366, .124],
humids=[.941, .778, .507, .236, 0.073, .014, .002],
gamma_curve=1.25,
curve_offset=.2,
num_plates=10,
ocean_level=1.0,
step=Step.full(),
verbose=get_verbose()):
e_as_array, p_as_array = generate_plates_simulation(seed,
width,
height,
num_plates=num_plates,
verbose=verbose)
world = World(name, Size(width, height), seed,
GenerationParameters(num_plates, ocean_level, step), temps,
humids, gamma_curve, curve_offset)
world.set_elevation(numpy.array(e_as_array).reshape(height, width), None)
world.set_plates(
numpy.array(p_as_array, dtype=numpy.uint16).reshape(height, width))
return world
def test_watermap_does_not_break_with_no_land(self):
seed = 12345
numpy.random.seed(seed)
size = Size(16, 8)
ocean = numpy.full((size.height, size.width), True, bool)
w = World("watermap", size, seed, GenerationParameters(0, 1.0, 0))
w.ocean = ocean
data, t = WatermapSimulation._watermap(w, 200)
def test_random_land_returns_only_land(self):
size = Size(100, 90)
ocean = numpy.fromfunction(lambda y, x: y >= x,
(size.height, size.width))
w = World("random_land", size, 0, GenerationParameters(0, 1.0, 0))
w.ocean = ocean
num_samples = 1000
land_indices = w.random_land(num_samples)
for i in range(0, num_samples * 2, 2):
self.assertFalse(ocean[land_indices[i + 1], land_indices[i]])
def test_sea_depth(self):
ocean_level = 1.0
extent = 11
w = World("sea_depth", Size(extent, extent), 0,
GenerationParameters(0, ocean_level, 0), None)
ocean = numpy.full([extent, extent], True)
ocean[5, 5] = False
elevation = numpy.zeros([extent, extent], float)
elevation[5, 5] = 2.0
t = numpy.zeros([extent, extent])
w.elevation = (elevation, t)
w.ocean = ocean
desired_result = numpy.asarray([0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, \
0.9, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.3, 0.3, 0.3, 0.3, 0.3, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.3, 0.0, 0.0, 0.0, 0.3, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.3, 0.0, -1.0, 0.0, 0.3, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.3, 0.0, 0.0, 0.0, 0.3, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.3, 0.3, 0.3, 0.3, 0.3, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.7, 0.9, \
0.9, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.9, \
0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.9])
desired_result = desired_result.reshape([extent, extent])
# this part is verbatim from the function. It's not part of the test
# Some refactoring is in order to increase test quality
desired_result = anti_alias(desired_result, 10)
min_depth = desired_result.min()
max_depth = desired_result.max()
desired_result = (desired_result - min_depth) / (max_depth - min_depth)
# end of verbatim part
result = sea_depth(w, ocean_level)
for y in range(extent):
for x in range(extent):
self.assertAlmostEqual(desired_result[y, x], result[y, x])
def generate_plates(seed,
world_name,
output_dir,
width,
height,
num_plates=10):
"""
Eventually this method should be invoked when generation is called at
asked to stop at step "plates", it should not be a different operation
:param seed:
:param world_name:
:param output_dir:
:param width:
:param height:
:param num_plates:
:return:
"""
elevation, plates = generate_plates_simulation(seed,
width,
height,
num_plates=num_plates)
world = World(world_name, Size(width, height), seed,
GenerationParameters(num_plates, -1.0, "plates"))
world.elevation = (numpy.array(elevation).reshape(height, width), None)
world.plates = numpy.array(plates,
dtype=numpy.uint16).reshape(height, width)
# Generate images
filename = '%s/plates_%s.png' % (output_dir, world_name)
draw_simple_elevation_on_file(world, filename, None)
print("+ plates image generated in '%s'" % filename)
geo.center_land(world)
filename = '%s/centered_plates_%s.png' % (output_dir, world_name)
draw_simple_elevation_on_file(world, filename, None)
print("+ centered plates image generated in '%s'" % filename)
def load_world_to_hdf5(filename):
f = h5py.File(filename, libver='latest', mode='r')
w = World(
f['general/name'].value,
Size(f['general/width'].value, f['general/height'].value),
f['generation_params/seed'].value,
GenerationParameters(
f['generation_params/n_plates'].value,
f['generation_params/ocean_level'].value,
Step.get_by_name(f['generation_params/step'].value)))
# Elevation
e = numpy.array(f['elevation/data'])
e_th = [('sea', f['elevation/thresholds/sea'].value),
('plain', f['elevation/thresholds/plain'].value),
('hill', f['elevation/thresholds/hill'].value), ('mountain', None)]
w.set_elevation(e, e_th)
# Plates
w.set_plates(numpy.array(f['plates']))
# Ocean
w.set_ocean(numpy.array(f['ocean']))
w.set_sea_depth(numpy.array(f['sea_depth']))
# Biome
if 'biome' in f.keys():
biome_data = []
for y in range(w.height):
row = []
for x in range(w.width):
value = f['biome'][y, x]
row.append(biome_index_to_name(value))
biome_data.append(row)
biome = numpy.array(biome_data, dtype=object)
w.set_biome(biome)
if 'humidity' in f.keys():
data, quantiles = _from_hdf5_matrix_with_quantiles(f['humidity'])
w.set_humidity(data, quantiles)
if 'irrigation' in f.keys():
w.set_irrigation(numpy.array(f['irrigation']))
if 'permeability' in f.keys():
p = numpy.array(f['permeability/data'])
p_th = [('low', f['permeability/thresholds/low'].value),
('med', f['permeability/thresholds/med'].value), ('hig', None)]
w.set_permeability(p, p_th)
if 'watermap' in f.keys():
data = numpy.array(f['watermap/data'])
thresholds = {}
thresholds['creek'] = f['watermap/thresholds/creek'].value
thresholds['river'] = f['watermap/thresholds/river'].value
thresholds['main river'] = f['watermap/thresholds/mainriver'].value
w.set_watermap(data, thresholds)
if 'precipitation' in f.keys():
p = numpy.array(f['precipitation/data'])
p_th = [('low', f['precipitation/thresholds/low'].value),
('med', f['precipitation/thresholds/med'].value),
('hig', None)]
w.set_precipitation(p, p_th)
if 'temperature' in f.keys():
t = numpy.array(f['temperature/data'])
t_th = [('polar', f['temperature/thresholds/polar'].value),
('alpine', f['temperature/thresholds/alpine'].value),
('boreal', f['temperature/thresholds/boreal'].value),
('cool', f['temperature/thresholds/cool'].value),
('warm', f['temperature/thresholds/warm'].value),
('subtropical', f['temperature/thresholds/subtropical'].value),
('tropical', None)]
w.set_temperature(t, t_th)
if 'icecap' in f.keys():
w.set_icecap(numpy.array(f['icecap']))
if 'lake_map' in f.keys():
m = numpy.array(f['lake_map'])
w.set_lakemap(m)
if 'river_map' in f.keys():
m = numpy.array(f['river_map'])
w.set_rivermap(m)
f.close()
return w