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Map surface is cached, so that loading map next time is much faster

This commit is contained in:
Manish 2019-06-11 12:26:39 +02:00 committed by Néstor Subirón
parent d22565db8b
commit 02c2bdd746
1 changed files with 24 additions and 1 deletions
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25
PythonAPI/examples/no_rendering_mode.py
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@ -425,7 +425,30 @@ class MapImage(object):
width_in_pixels = int(self._pixels_per_meter * self.width)
self.big_map_surface = pygame.Surface((width_in_pixels, width_in_pixels)).convert()
self.draw_road_map(self.big_map_surface, carla_world, carla_map, self.world_to_pixel, self.world_to_pixel_width)
opendrive_content = carla_map.to_opendrive()
opendrive_hash = hash(opendrive_content)
dirname = "./cache/no_rendering_mode/"
filename = carla_map.name + "_" + str(opendrive_hash) + ".tga"
if os.path.isfile(dirname + filename):
# Load Image
self.big_map_surface = pygame.image.load(dirname + filename)
else:
# Render map
self.draw_road_map(self.big_map_surface, carla_world, carla_map, self.world_to_pixel, self.world_to_pixel_width)
# If folders path does not exist, create it
if not os.path.exists(dirname):
os.makedirs(dirname)
# Remove files if selected town had a previous version saved
list_filenames = glob.glob(dirname + carla_map.name + "*")
for town_filename in list_filenames:
os.remove(town_filename)
# Save rendered map
pygame.image.save(self.big_map_surface, dirname + filename)
self.surface = self.big_map_surface
def draw_road_map(self, map_surface, carla_world, carla_map, world_to_pixel, world_to_pixel_width):