def make_river(self):
lowpoints = []
target_nodes = []
for x in range(self.width):
for y in range(self.height):
if self.heightmap[x][y] < 0.7:
lowpoints.append((x, y))
random.shuffle(lowpoints)
target_nodes.append(lowpoints[0])
lowpoints.pop(0)
while len(target_nodes) < 25:
c = lowpoints[0]
for tn in target_nodes:
if check_range(c, tn, 10):
lowpoints.pop(0)
continue
else:
target_nodes.append(c)
lowpoints.pop(0)
r = gen_river(
self.width, self.height, startnode=(32, 32), numnodes=100,
custom_nodes=target_nodes
)
for px, py in r:
for x, y in [(px + i, py + j) for i in (-3, 0, 3) for j in (-3, 0, 3) if i != 0 or j != 0]:
try:
if self.heightmap[x][y] > 0:
self.heightmap[x][y] *= 0.8
except IndexError:
pass
for x, y in [(px + i, py + j) for i in (-2, 0, 2) for j in (-2, 0, 2) if i != 0 or j != 0]:
try:
if self.heightmap[x][y] > 0:
self.heightmap[x][y] *= 0.8
except IndexError:
pass
for x, y in [(px + i, py + j) for i in (-1, 0, 1) for j in (-1, 0, 1) if i != 0 or j != 0]:
try:
if self.heightmap[x][y] > 0:
self.heightmap[x][y] *= 0.6
except IndexError:
pass
self.heightmap[px][py] = 0.
def check_in_colony(self, x, y):
return check_range((x, y), (self.x, self.y), self.size + 1)
