I am using PYgame to create an environment with multiple cars. etch car has its own radar where it can check the distance between obstacles. the problem that I am having is, how to get the color of a pixel. so if a moving car has the color purple and it is currently over the [x,y] Pixsle I will get the purple cooler not the surface color of the picture screen.
current logic for the radars:
while not WIN.get_at((x, y)) == pygame.Color(48, 48, 48, 255) and length < 80: length += 1 x = int(xcenter + math.sin(-math.radians(self.angle + radar_angle)) * length) y = int(ycenter - math.cos(-math.radians(self.angle + radar_angle)) * length) pygame.draw.line(WIN, (255, 255, 255, 0), (xcenter,ycenter), (x, y), 1) pygame.draw.circle(WIN, (0, 255, 0, 0), (x, y), 2) pygame.display.flip()
do there is a function in pygame that handles this case?
You have to options.
Do the opposite. Test if the color is the gray color of the street:
street_gray = (128, 128, 128) # use your gray street color here while WIN.get_at((x, y)) == street_gray and length < 80: # [...]
pygame.mask.Maskthat is 1 at positions of obstacles and 0 elsewhere. When you create the mask you need to set the
set_colorkey()for the gray road. The mask can be created with
pygame.mask.Mask.get_atreturns either 0 or 1:
win_surf = WIN.copy() win_surf.set_colorkey(street_gray) street_mask = pygame.mask.from_surface(win_surf) while street_mask.get_at((x, y)) == 0 and length < 80: # [...]