I had an idea to get my feet wet with an independent project.
A small explanation: As most may know there is something called game speedruns, and one of the games run is " The Legend of Zelda: A Link to the Past". A subgroup of these speedruns is called “Randomizers”. These are community-modified games that allow randomizing nearly anything, from enemy health to item locations.
One of the things that can be randomized are the entrances of structures. So you enter in one location but get transported to the interior of another structure.
Example on youtube
In the video you can see one of the more crazy variations of the randomizer, where entrance and exits are decoupled.
For now I want to focus on the variety where only the entrances are random, if you exit out again it would put you where you went in.
That long explanation out of the way:
What I am trying to code is a python programm that imports the game overworld map as an image, and allows the user to click somwhere to mark an entrance, then click on another location to mark the exit and a line should be drawn between those two locations.
I want to draw a rectangle at the clicked locations to mark where they are and use it as together with a collision check to not save the same location twice.
what I got so far is:
import pygame pygame.init() clock = pygame.time.Clock() clock.tick(20) BLACK = (0, 0, 0) RED = (255, 0, 0) GREEN = (0, 255, 0) screen = pygame.display.set_mode((500, 500)) running = True connections_list =  def get_instance_name(position): """ generates a name string for a clicked positon to be used for instantiating Connection() """ position_x, position_y = position instance_name = str(position_x) + str(position_y) return instance_name class Marker(pygame.sprite.Sprite): """ used to draw the marker at a given position """ def __init__(self, position): pygame.sprite.Sprite.__init__(self) x, y = position self.image = pygame.Surface((50, 50)) self.image.fill(RED) self.image.set_alpha(200) self.rect = self.image.get_rect() self.rect.x = x self.rect.y = y def check_click(self, mouse): if self.rect.collidepoint(mouse): self.image.set_alpha(200) class Connection: """ used as a container for an entrance/exit-pair, self.set_entrance_or_exit(position) is used to assign clicked coordinates """ def __init__(self, full=False): self.entrance = None self.exit = None self.full = full def set_entrance_or_exit(self, position): if self.entrance is None: self.entrance = position if self.exit is None: self.exit = position self.full = True def get_entrance(self): if self.entrance is None: return else: return self.entrance def get_exit(self): if self.exit is None: return else: return self.exit def check_if_full(self): return self.full running = True while running: all_sprites = pygame.sprite.Group() if len(connections_list) != 0: for connection in connections_list: if not connection.check_if_full(): position = connection.get_entrance marker_entrance = connection + '_entrance' marker_entrance = Marker(connection.get_entrance()) all_sprites.add(marker_entrance) for event in pygame.event.get(): if event.type == pygame.QUIT: running = False elif event.type == pygame.MOUSEBUTTONDOWN: # for s in all_sprites: # s.check_click(event.pos) var = get_instance_name(pygame.mouse.get_pos()) var = Connection() connections_list.append(var) var.set_entrance_or_exit(pygame.mouse.get_pos()) print(var.get_entrance()) print(all_sprites) screen.fill(BLACK) all_sprites.update() all_sprites.draw(screen) pygame.display.update() pygame.quit()
I my problem now is that nothing gets drawn when I click, and I don’t understand why. As no error is thrown after a click I am somewhat stuck. Also this way of drawing a rectangle feels complicated to me. I used the method from this post https://stackoverflow.com/a/41369270, but maybe there is an easier way to do this. Again, I am open to suggestions
As a sidenote I am aware that pygame might not be the best library to achieve what I want. So I am open to suggestions using other python modules. Someone mentioned “pynput” to me, maybe combining it with pyQT would work. But for now I am just trying to get the most basic functions down: clicking somewhere, saving the position, drawing a rectangle, collision/hover detection.
I appreciate any suggestions!
PS: I know there might be programs that already do that, but I just want to use this as training for myself