DISCLAIMER: I know other people on this site have had this error but it's been in different contexts and the fixes don't seem to work here.
Hey stackoverflow, Basically I've been making a sideways space invaders game, where your ship follows your mouse's Y position but stays on the left, and clicking shoots a bullet. Enemies spawn randomly from the right and fly to the left, and objects are removed once they each the side of the screen. This all works fine, however when I tried to implement collision detection to see when the shot hits the enemy, I get the error:
TypeError: Argument must be rect style object. It points to the line "return hitbox.colliderect(target.rect)". To try and work out what was causing this I made some 'print' lines below it to see what 'target.rect' was (and whether it was a proper rect object), and it seemed to be exactly the same style as the shot's own rect, so I'm completely lost as to why colliderect doesn't accept it.
I've annotated pretty much everything, sorry if it's an insult to your intelligence but it should make things easier.
Class that causes problems:
class gameObject: def __init__(self, image, height, speed): self.speed = speed self.image, self.rect = load_image("shot.dsf", -1) #Loads the image and creates rectange self.pos = image.get_rect().move(0, height) def move(self): self.pos = self.pos.move(self.speed, 0) #Moves along self.rect = [self.pos, 32, 32] #Updates the position of the rectange. Without it the rectangle just stays in the top left corner but the image moves if self. pos.right > 1400: #Checks if shot goes offscreen objects.remove(self) #Removes it def hitreg(self,target): hitbox = self.rect #Creates hitbox of it's own rectangle return hitbox.colliderect(target.rect) #SHOULD return true if hitbox collides with the rect of target, however it returns the error print("OWN RECT: ",self.rect) #Debug purposes, returns ('OWN RECT: [<rect(1350, 245, 32, 32)>, 32, 32]) print("TARGET RECT: ",target.rect) #Debug purposes, returns ('TARGET RECT: [<rect(360, 479, 128, 64)>, 128, 64]) Main Loop
r.drawFrame() #Renders Frame while running: sleep(0.0166) #Make sure it only renders at most 60fps rand = rnd(10,20) #Generates random number from 10 to 20 pos = pygame.mouse.get_pos() #Gets mouse position for event in pygame.event.get(): if event.type == MOUSEBUTTONUP: #Prevents hang None if event.type == MOUSEBUTTONDOWN: #Creates shot if mousebuttondown, at mouse height with random speed o = gameObject(shot, pos[1], rand) objects.append(o) if rnd(1,120) == 60: #Randomely Spawns Enemy Ships s = enemyShip(enemya, rnd(10,890), rand) #enemya is filename ships.append(s) for o in objects: #For each shot for s in ships: #For each enemy ship if o.hitreg(s): #Calls hitreg function, s being the target s.takedamage() score = score + 10 #Increases score r.drawFrame() #Renders Frame 
